Contents of /trunk/elfutils/patches/elfutils-0.153-robustify.patch
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Revision 1805 -
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Tue Jun 12 08:11:45 2012 UTC (11 years, 11 months ago) by niro
File size: 63255 byte(s)
Tue Jun 12 08:11:45 2012 UTC (11 years, 11 months ago) by niro
File size: 63255 byte(s)
-added patches for 0.153
1 | --- elfutils/libdwfl/ChangeLog |
2 | +++ elfutils/libdwfl/ChangeLog |
3 | @@ -41,6 +41,11 @@ |
4 | * dwfl_module_getdwarf.c (open_elf): Clear errno before CBFAIL. |
5 | Reported by Kurt Roeckx <kurt@roeckx.be>. |
6 | |
7 | +2011-03-23 Petr Machata <pmachata@redhat.com> |
8 | + |
9 | + * relocate.c (relocate_section): Use gelf_fsize instead of relying |
10 | + on shdr->sh_entsize. |
11 | + |
12 | 2011-02-11 Roland McGrath <roland@redhat.com> |
13 | |
14 | * linux-kernel-modules.c (try_kernel_name): Try .gz, .bz2, .xz |
15 | --- elfutils/libdwfl/relocate.c |
16 | +++ elfutils/libdwfl/relocate.c |
17 | @@ -1,5 +1,5 @@ |
18 | /* Relocate debug information. |
19 | - Copyright (C) 2005-2010 Red Hat, Inc. |
20 | + Copyright (C) 2005-2011 Red Hat, Inc. |
21 | This file is part of Red Hat elfutils. |
22 | |
23 | Red Hat elfutils is free software; you can redistribute it and/or modify |
24 | @@ -478,7 +478,10 @@ relocate_section (Dwfl_Module *mod, Elf |
25 | } |
26 | } |
27 | |
28 | - size_t nrels = shdr->sh_size / shdr->sh_entsize; |
29 | + size_t sh_entsize |
30 | + = gelf_fsize (relocated, shdr->sh_type == SHT_REL ? ELF_T_REL : ELF_T_RELA, |
31 | + 1, EV_CURRENT); |
32 | + size_t nrels = shdr->sh_size / sh_entsize; |
33 | size_t complete = 0; |
34 | if (shdr->sh_type == SHT_REL) |
35 | for (size_t relidx = 0; !result && relidx < nrels; ++relidx) |
36 | @@ -580,7 +583,7 @@ relocate_section (Dwfl_Module *mod, Elf |
37 | nrels = next; |
38 | } |
39 | |
40 | - shdr->sh_size = reldata->d_size = nrels * shdr->sh_entsize; |
41 | + shdr->sh_size = reldata->d_size = nrels * sh_entsize; |
42 | gelf_update_shdr (scn, shdr); |
43 | } |
44 | |
45 | --- elfutils/libelf/ChangeLog |
46 | +++ elfutils/libelf/ChangeLog |
47 | @@ -663,10 +663,53 @@ |
48 | If section content hasn't been read yet, do it before looking for the |
49 | block size. If no section data present, infer size of section header. |
50 | |
51 | +2005-05-14 Jakub Jelinek <jakub@redhat.com> |
52 | + |
53 | + * libelfP.h (INVALID_NDX): Define. |
54 | + * gelf_getdyn.c (gelf_getdyn): Use it. Remove ndx < 0 test if any. |
55 | + * gelf_getlib.c (gelf_getlib): Likewise. |
56 | + * gelf_getmove.c (gelf_getmove): Likewise. |
57 | + * gelf_getrel.c (gelf_getrel): Likewise. |
58 | + * gelf_getrela.c (gelf_getrela): Likewise. |
59 | + * gelf_getsym.c (gelf_getsym): Likewise. |
60 | + * gelf_getsyminfo.c (gelf_getsyminfo): Likewise. |
61 | + * gelf_getsymshndx.c (gelf_getsymshndx): Likewise. |
62 | + * gelf_getversym.c (gelf_getversym): Likewise. |
63 | + * gelf_update_dyn.c (gelf_update_dyn): Likewise. |
64 | + * gelf_update_lib.c (gelf_update_lib): Likewise. |
65 | + * gelf_update_move.c (gelf_update_move): Likewise. |
66 | + * gelf_update_rel.c (gelf_update_rel): Likewise. |
67 | + * gelf_update_rela.c (gelf_update_rela): Likewise. |
68 | + * gelf_update_sym.c (gelf_update_sym): Likewise. |
69 | + * gelf_update_syminfo.c (gelf_update_syminfo): Likewise. |
70 | + * gelf_update_symshndx.c (gelf_update_symshndx): Likewise. |
71 | + * gelf_update_versym.c (gelf_update_versym): Likewise. |
72 | + * elf_newscn.c (elf_newscn): Check for overflow. |
73 | + * elf32_updatefile.c (__elfw2(LIBELFBITS,updatemmap)): Likewise. |
74 | + (__elfw2(LIBELFBITS,updatefile)): Likewise. |
75 | + * elf_begin.c (file_read_elf): Likewise. |
76 | + * elf32_newphdr.c (elfw2(LIBELFBITS,newphdr)): Likewise. |
77 | + * elf_getarsym.c (elf_getarsym): Likewise. |
78 | + * elf32_getshdr.c (elfw2(LIBELFBITS,getshdr)): Likewise. |
79 | 2005-05-11 Ulrich Drepper <drepper@redhat.com> |
80 | |
81 | * elf.h: Update again. |
82 | |
83 | +2005-05-17 Jakub Jelinek <jakub@redhat.com> |
84 | + |
85 | + * elf32_getphdr.c (elfw2(LIBELFBITS,getphdr)): Check if program header |
86 | + table fits into object's bounds. |
87 | + * elf_getshstrndx.c (elf_getshstrndx): Add elf->start_offset to |
88 | + elf->map_address. Check if first section header fits into object's |
89 | + bounds. |
90 | + * elf32_getshdr.c (elfw2(LIBELFBITS,getshdr)): |
91 | + Check if section header table fits into object's bounds. |
92 | + * elf_begin.c (get_shnum): Ensure section headers fits into |
93 | + object's bounds. |
94 | + (file_read_elf): Make sure scncnt is small enough to allocate both |
95 | + ElfXX_Shdr and Elf_Scn array. Make sure section and program header |
96 | + tables fit into object's bounds. Avoid memory leak on failure. |
97 | + |
98 | 2005-05-09 Ulrich Drepper <drepper@redhat.com> |
99 | |
100 | * elf.h: Update from glibc. |
101 | --- elfutils/libelf/elf32_getphdr.c |
102 | +++ elfutils/libelf/elf32_getphdr.c |
103 | @@ -114,6 +114,16 @@ __elfw2(LIBELFBITS,getphdr_wrlock) (elf) |
104 | |
105 | if (elf->map_address != NULL) |
106 | { |
107 | + /* First see whether the information in the ELF header is |
108 | + valid and it does not ask for too much. */ |
109 | + if (unlikely (ehdr->e_phoff >= elf->maximum_size) |
110 | + || unlikely (elf->maximum_size - ehdr->e_phoff < size)) |
111 | + { |
112 | + /* Something is wrong. */ |
113 | + __libelf_seterrno (ELF_E_INVALID_PHDR); |
114 | + goto out; |
115 | + } |
116 | + |
117 | /* All the data is already mapped. Use it. */ |
118 | void *file_phdr = ((char *) elf->map_address |
119 | + elf->start_offset + ehdr->e_phoff); |
120 | --- elfutils/libelf/elf32_getshdr.c |
121 | +++ elfutils/libelf/elf32_getshdr.c |
122 | @@ -1,5 +1,5 @@ |
123 | /* Return section header. |
124 | - Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005, 2007, 2009 Red Hat, Inc. |
125 | + Copyright (C) 1998-2009 Red Hat, Inc. |
126 | This file is part of Red Hat elfutils. |
127 | Written by Ulrich Drepper <drepper@redhat.com>, 1998. |
128 | |
129 | @@ -81,7 +81,8 @@ load_shdr_wrlock (Elf_Scn *scn) |
130 | goto out; |
131 | |
132 | size_t shnum; |
133 | - if (__elf_getshdrnum_rdlock (elf, &shnum) != 0) |
134 | + if (__elf_getshdrnum_rdlock (elf, &shnum) != 0 |
135 | + || shnum > SIZE_MAX / sizeof (ElfW2(LIBELFBITS,Shdr))) |
136 | goto out; |
137 | size_t size = shnum * sizeof (ElfW2(LIBELFBITS,Shdr)); |
138 | |
139 | @@ -98,6 +99,16 @@ load_shdr_wrlock (Elf_Scn *scn) |
140 | |
141 | if (elf->map_address != NULL) |
142 | { |
143 | + /* First see whether the information in the ELF header is |
144 | + valid and it does not ask for too much. */ |
145 | + if (unlikely (ehdr->e_shoff >= elf->maximum_size) |
146 | + || unlikely (elf->maximum_size - ehdr->e_shoff < size)) |
147 | + { |
148 | + /* Something is wrong. */ |
149 | + __libelf_seterrno (ELF_E_INVALID_SECTION_HEADER); |
150 | + goto free_and_out; |
151 | + } |
152 | + |
153 | ElfW2(LIBELFBITS,Shdr) *notcvt; |
154 | |
155 | /* All the data is already mapped. If we could use it |
156 | --- elfutils/libelf/elf32_newphdr.c |
157 | +++ elfutils/libelf/elf32_newphdr.c |
158 | @@ -135,6 +135,12 @@ elfw2(LIBELFBITS,newphdr) (elf, count) |
159 | || count == PN_XNUM |
160 | || elf->state.ELFW(elf,LIBELFBITS).phdr == NULL) |
161 | { |
162 | + if (unlikely (count > SIZE_MAX / sizeof (ElfW2(LIBELFBITS,Phdr)))) |
163 | + { |
164 | + result = NULL; |
165 | + goto out; |
166 | + } |
167 | + |
168 | /* Allocate a new program header with the appropriate number of |
169 | elements. */ |
170 | result = (ElfW2(LIBELFBITS,Phdr) *) |
171 | --- elfutils/libelf/elf32_updatefile.c |
172 | +++ elfutils/libelf/elf32_updatefile.c |
173 | @@ -223,6 +223,9 @@ __elfw2(LIBELFBITS,updatemmap) (Elf *elf |
174 | /* Write all the sections. Well, only those which are modified. */ |
175 | if (shnum > 0) |
176 | { |
177 | + if (unlikely (shnum > SIZE_MAX / sizeof (Elf_Scn *))) |
178 | + return 1; |
179 | + |
180 | Elf_ScnList *list = &elf->state.ELFW(elf,LIBELFBITS).scns; |
181 | Elf_Scn **scns = (Elf_Scn **) alloca (shnum * sizeof (Elf_Scn *)); |
182 | char *const shdr_start = ((char *) elf->map_address + elf->start_offset |
183 | @@ -645,6 +648,10 @@ __elfw2(LIBELFBITS,updatefile) (Elf *elf |
184 | /* Write all the sections. Well, only those which are modified. */ |
185 | if (shnum > 0) |
186 | { |
187 | + if (unlikely (shnum > SIZE_MAX / (sizeof (Elf_Scn *) |
188 | + + sizeof (ElfW2(LIBELFBITS,Shdr))))) |
189 | + return 1; |
190 | + |
191 | off_t shdr_offset = elf->start_offset + ehdr->e_shoff; |
192 | #if EV_NUM != 2 |
193 | xfct_t shdr_fctp = __elf_xfctstom[__libelf_version - 1][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_SHDR]; |
194 | --- elfutils/libelf/elf_begin.c |
195 | +++ elfutils/libelf/elf_begin.c |
196 | @@ -165,7 +165,8 @@ get_shnum (void *map_address, unsigned c |
197 | |
198 | if (unlikely (result == 0) && ehdr.e32->e_shoff != 0) |
199 | { |
200 | - if (ehdr.e32->e_shoff + sizeof (Elf32_Shdr) > maxsize) |
201 | + if (unlikely (ehdr.e32->e_shoff >= maxsize) |
202 | + || unlikely (maxsize - ehdr.e32->e_shoff < sizeof (Elf32_Shdr))) |
203 | /* Cannot read the first section header. */ |
204 | return 0; |
205 | |
206 | @@ -213,7 +214,8 @@ get_shnum (void *map_address, unsigned c |
207 | |
208 | if (unlikely (result == 0) && ehdr.e64->e_shoff != 0) |
209 | { |
210 | - if (ehdr.e64->e_shoff + sizeof (Elf64_Shdr) > maxsize) |
211 | + if (unlikely (ehdr.e64->e_shoff >= maxsize) |
212 | + || unlikely (ehdr.e64->e_shoff + sizeof (Elf64_Shdr) > maxsize)) |
213 | /* Cannot read the first section header. */ |
214 | return 0; |
215 | |
216 | @@ -285,6 +287,15 @@ file_read_elf (int fildes, void *map_add |
217 | /* Could not determine the number of sections. */ |
218 | return NULL; |
219 | |
220 | + /* Check for too many sections. */ |
221 | + if (e_ident[EI_CLASS] == ELFCLASS32) |
222 | + { |
223 | + if (scncnt > SIZE_MAX / (sizeof (Elf_Scn) + sizeof (Elf32_Shdr))) |
224 | + return NULL; |
225 | + } |
226 | + else if (scncnt > SIZE_MAX / (sizeof (Elf_Scn) + sizeof (Elf64_Shdr))) |
227 | + return NULL; |
228 | + |
229 | /* We can now allocate the memory. Even if there are no section headers, |
230 | we allocate space for a zeroth section in case we need it later. */ |
231 | const size_t scnmax = (scncnt ?: (cmd == ELF_C_RDWR || cmd == ELF_C_RDWR_MMAP) |
232 | @@ -324,6 +335,16 @@ file_read_elf (int fildes, void *map_add |
233 | { |
234 | /* We can use the mmapped memory. */ |
235 | elf->state.elf32.ehdr = ehdr; |
236 | + |
237 | + if (unlikely (ehdr->e_shoff >= maxsize) |
238 | + || unlikely (maxsize - ehdr->e_shoff |
239 | + < scncnt * sizeof (Elf32_Shdr))) |
240 | + { |
241 | + free_and_out: |
242 | + free (elf); |
243 | + __libelf_seterrno (ELF_E_INVALID_FILE); |
244 | + return NULL; |
245 | + } |
246 | elf->state.elf32.shdr |
247 | = (Elf32_Shdr *) ((char *) ehdr + ehdr->e_shoff); |
248 | |
249 | @@ -410,6 +431,11 @@ file_read_elf (int fildes, void *map_add |
250 | { |
251 | /* We can use the mmapped memory. */ |
252 | elf->state.elf64.ehdr = ehdr; |
253 | + |
254 | + if (unlikely (ehdr->e_shoff >= maxsize) |
255 | + || unlikely (ehdr->e_shoff |
256 | + + scncnt * sizeof (Elf32_Shdr) > maxsize)) |
257 | + goto free_and_out; |
258 | elf->state.elf64.shdr |
259 | = (Elf64_Shdr *) ((char *) ehdr + ehdr->e_shoff); |
260 | |
261 | --- elfutils/libelf/elf_getarsym.c |
262 | +++ elfutils/libelf/elf_getarsym.c |
263 | @@ -179,6 +179,9 @@ elf_getarsym (elf, ptr) |
264 | size_t index_size = atol (tmpbuf); |
265 | |
266 | if (SARMAG + sizeof (struct ar_hdr) + index_size > elf->maximum_size |
267 | +#if SIZE_MAX <= 4294967295U |
268 | + || n >= SIZE_MAX / sizeof (Elf_Arsym) |
269 | +#endif |
270 | || n * sizeof (uint32_t) > index_size) |
271 | { |
272 | /* This index table cannot be right since it does not fit into |
273 | --- elfutils/libelf/elf_getshdrstrndx.c |
274 | +++ elfutils/libelf/elf_getshdrstrndx.c |
275 | @@ -125,10 +125,25 @@ elf_getshdrstrndx (elf, dst) |
276 | if (elf->map_address != NULL |
277 | && elf->state.elf32.ehdr->e_ident[EI_DATA] == MY_ELFDATA |
278 | && (ALLOW_UNALIGNED |
279 | - || (((size_t) ((char *) elf->map_address + offset)) |
280 | + || (((size_t) ((char *) elf->map_address |
281 | + + elf->start_offset + offset)) |
282 | & (__alignof__ (Elf32_Shdr) - 1)) == 0)) |
283 | - /* We can directly access the memory. */ |
284 | - num = ((Elf32_Shdr *) (elf->map_address + offset))->sh_link; |
285 | + { |
286 | + /* First see whether the information in the ELF header is |
287 | + valid and it does not ask for too much. */ |
288 | + if (unlikely (elf->maximum_size - offset |
289 | + < sizeof (Elf32_Shdr))) |
290 | + { |
291 | + /* Something is wrong. */ |
292 | + __libelf_seterrno (ELF_E_INVALID_SECTION_HEADER); |
293 | + result = -1; |
294 | + goto out; |
295 | + } |
296 | + |
297 | + /* We can directly access the memory. */ |
298 | + num = ((Elf32_Shdr *) (elf->map_address + elf->start_offset |
299 | + + offset))->sh_link; |
300 | + } |
301 | else |
302 | { |
303 | /* We avoid reading in all the section headers. Just read |
304 | @@ -163,10 +178,25 @@ elf_getshdrstrndx (elf, dst) |
305 | if (elf->map_address != NULL |
306 | && elf->state.elf64.ehdr->e_ident[EI_DATA] == MY_ELFDATA |
307 | && (ALLOW_UNALIGNED |
308 | - || (((size_t) ((char *) elf->map_address + offset)) |
309 | + || (((size_t) ((char *) elf->map_address |
310 | + + elf->start_offset + offset)) |
311 | & (__alignof__ (Elf64_Shdr) - 1)) == 0)) |
312 | - /* We can directly access the memory. */ |
313 | - num = ((Elf64_Shdr *) (elf->map_address + offset))->sh_link; |
314 | + { |
315 | + /* First see whether the information in the ELF header is |
316 | + valid and it does not ask for too much. */ |
317 | + if (unlikely (elf->maximum_size - offset |
318 | + < sizeof (Elf64_Shdr))) |
319 | + { |
320 | + /* Something is wrong. */ |
321 | + __libelf_seterrno (ELF_E_INVALID_SECTION_HEADER); |
322 | + result = -1; |
323 | + goto out; |
324 | + } |
325 | + |
326 | + /* We can directly access the memory. */ |
327 | + num = ((Elf64_Shdr *) (elf->map_address + elf->start_offset |
328 | + + offset))->sh_link; |
329 | + } |
330 | else |
331 | { |
332 | /* We avoid reading in all the section headers. Just read |
333 | --- elfutils/libelf/elf_newscn.c |
334 | +++ elfutils/libelf/elf_newscn.c |
335 | @@ -104,10 +104,18 @@ elf_newscn (elf) |
336 | else |
337 | { |
338 | /* We must allocate a new element. */ |
339 | - Elf_ScnList *newp; |
340 | + Elf_ScnList *newp = NULL; |
341 | |
342 | assert (elf->state.elf.scnincr > 0); |
343 | |
344 | + if ( |
345 | +#if SIZE_MAX <= 4294967295U |
346 | + likely (elf->state.elf.scnincr |
347 | + < SIZE_MAX / 2 / sizeof (Elf_Scn) - sizeof (Elf_ScnList)) |
348 | +#else |
349 | + 1 |
350 | +#endif |
351 | + ) |
352 | newp = (Elf_ScnList *) calloc (sizeof (Elf_ScnList) |
353 | + ((elf->state.elf.scnincr *= 2) |
354 | * sizeof (Elf_Scn)), 1); |
355 | --- elfutils/libelf/gelf_getdyn.c |
356 | +++ elfutils/libelf/gelf_getdyn.c |
357 | @@ -1,5 +1,5 @@ |
358 | /* Get information from dynamic table at the given index. |
359 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
360 | + Copyright (C) 2000-2009 Red Hat, Inc. |
361 | This file is part of Red Hat elfutils. |
362 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
363 | |
364 | @@ -93,7 +93,7 @@ gelf_getdyn (data, ndx, dst) |
365 | table entries has to be adopted. The user better has provided |
366 | a buffer where we can store the information. While copying the |
367 | data we are converting the format. */ |
368 | - if (unlikely ((ndx + 1) * sizeof (Elf32_Dyn) > data_scn->d.d_size)) |
369 | + if (INVALID_NDX (ndx, Elf32_Dyn, &data_scn->d)) |
370 | { |
371 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
372 | goto out; |
373 | @@ -114,7 +114,7 @@ gelf_getdyn (data, ndx, dst) |
374 | |
375 | /* The data is already in the correct form. Just make sure the |
376 | index is OK. */ |
377 | - if (unlikely ((ndx + 1) * sizeof (GElf_Dyn) > data_scn->d.d_size)) |
378 | + if (INVALID_NDX (ndx, GElf_Dyn, &data_scn->d)) |
379 | { |
380 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
381 | goto out; |
382 | --- elfutils/libelf/gelf_getlib.c |
383 | +++ elfutils/libelf/gelf_getlib.c |
384 | @@ -1,5 +1,5 @@ |
385 | /* Get library from table at the given index. |
386 | - Copyright (C) 2004 Red Hat, Inc. |
387 | + Copyright (C) 2004-2009 Red Hat, Inc. |
388 | This file is part of Red Hat elfutils. |
389 | Written by Ulrich Drepper <drepper@redhat.com>, 2004. |
390 | |
391 | @@ -86,7 +86,7 @@ gelf_getlib (data, ndx, dst) |
392 | /* The data is already in the correct form. Just make sure the |
393 | index is OK. */ |
394 | GElf_Lib *result = NULL; |
395 | - if (unlikely ((ndx + 1) * sizeof (GElf_Lib) > data->d_size)) |
396 | + if (INVALID_NDX (ndx, GElf_Lib, data)) |
397 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
398 | else |
399 | { |
400 | --- elfutils/libelf/gelf_getmove.c |
401 | +++ elfutils/libelf/gelf_getmove.c |
402 | @@ -1,5 +1,5 @@ |
403 | /* Get move structure at the given index. |
404 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
405 | + Copyright (C) 2000-2009 Red Hat, Inc. |
406 | This file is part of Red Hat elfutils. |
407 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
408 | |
409 | @@ -83,7 +83,7 @@ gelf_getmove (data, ndx, dst) |
410 | |
411 | /* The data is already in the correct form. Just make sure the |
412 | index is OK. */ |
413 | - if (unlikely ((ndx + 1) * sizeof (GElf_Move) > data->d_size)) |
414 | + if (INVALID_NDX (ndx, GElf_Move, data)) |
415 | { |
416 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
417 | goto out; |
418 | --- elfutils/libelf/gelf_getrela.c |
419 | +++ elfutils/libelf/gelf_getrela.c |
420 | @@ -1,5 +1,5 @@ |
421 | /* Get RELA relocation information at given index. |
422 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
423 | + Copyright (C) 2000-2009 Red Hat, Inc. |
424 | This file is part of Red Hat elfutils. |
425 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
426 | |
427 | @@ -71,12 +71,6 @@ gelf_getrela (data, ndx, dst) |
428 | if (data_scn == NULL) |
429 | return NULL; |
430 | |
431 | - if (unlikely (ndx < 0)) |
432 | - { |
433 | - __libelf_seterrno (ELF_E_INVALID_INDEX); |
434 | - return NULL; |
435 | - } |
436 | - |
437 | if (unlikely (data_scn->d.d_type != ELF_T_RELA)) |
438 | { |
439 | __libelf_seterrno (ELF_E_INVALID_HANDLE); |
440 | @@ -93,7 +87,7 @@ gelf_getrela (data, ndx, dst) |
441 | if (scn->elf->class == ELFCLASS32) |
442 | { |
443 | /* We have to convert the data. */ |
444 | - if (unlikely ((ndx + 1) * sizeof (Elf32_Rela) > data_scn->d.d_size)) |
445 | + if (INVALID_NDX (ndx, Elf32_Rela, &data_scn->d)) |
446 | { |
447 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
448 | result = NULL; |
449 | @@ -114,7 +108,7 @@ gelf_getrela (data, ndx, dst) |
450 | { |
451 | /* Simply copy the data after we made sure we are actually getting |
452 | correct data. */ |
453 | - if (unlikely ((ndx + 1) * sizeof (Elf64_Rela) > data_scn->d.d_size)) |
454 | + if (INVALID_NDX (ndx, Elf64_Rela, &data_scn->d)) |
455 | { |
456 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
457 | result = NULL; |
458 | --- elfutils/libelf/gelf_getrel.c |
459 | +++ elfutils/libelf/gelf_getrel.c |
460 | @@ -1,5 +1,5 @@ |
461 | /* Get REL relocation information at given index. |
462 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
463 | + Copyright (C) 2000-2009 Red Hat, Inc. |
464 | This file is part of Red Hat elfutils. |
465 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
466 | |
467 | @@ -71,12 +71,6 @@ gelf_getrel (data, ndx, dst) |
468 | if (data_scn == NULL) |
469 | return NULL; |
470 | |
471 | - if (unlikely (ndx < 0)) |
472 | - { |
473 | - __libelf_seterrno (ELF_E_INVALID_INDEX); |
474 | - return NULL; |
475 | - } |
476 | - |
477 | if (unlikely (data_scn->d.d_type != ELF_T_REL)) |
478 | { |
479 | __libelf_seterrno (ELF_E_INVALID_HANDLE); |
480 | @@ -93,7 +87,7 @@ gelf_getrel (data, ndx, dst) |
481 | if (scn->elf->class == ELFCLASS32) |
482 | { |
483 | /* We have to convert the data. */ |
484 | - if (unlikely ((ndx + 1) * sizeof (Elf32_Rel) > data_scn->d.d_size)) |
485 | + if (INVALID_NDX (ndx, Elf32_Rel, &data_scn->d)) |
486 | { |
487 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
488 | result = NULL; |
489 | @@ -113,7 +107,7 @@ gelf_getrel (data, ndx, dst) |
490 | { |
491 | /* Simply copy the data after we made sure we are actually getting |
492 | correct data. */ |
493 | - if (unlikely ((ndx + 1) * sizeof (Elf64_Rel) > data_scn->d.d_size)) |
494 | + if (INVALID_NDX (ndx, Elf64_Rel, &data_scn->d)) |
495 | { |
496 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
497 | result = NULL; |
498 | --- elfutils/libelf/gelf_getsym.c |
499 | +++ elfutils/libelf/gelf_getsym.c |
500 | @@ -1,5 +1,5 @@ |
501 | /* Get symbol information from symbol table at the given index. |
502 | - Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. |
503 | + Copyright (C) 1999-2009 Red Hat, Inc. |
504 | This file is part of Red Hat elfutils. |
505 | Written by Ulrich Drepper <drepper@redhat.com>, 1999. |
506 | |
507 | @@ -90,7 +90,7 @@ gelf_getsym (data, ndx, dst) |
508 | table entries has to be adopted. The user better has provided |
509 | a buffer where we can store the information. While copying the |
510 | data we are converting the format. */ |
511 | - if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > data->d_size)) |
512 | + if (INVALID_NDX (ndx, Elf32_Sym, data)) |
513 | { |
514 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
515 | goto out; |
516 | @@ -119,7 +119,7 @@ gelf_getsym (data, ndx, dst) |
517 | |
518 | /* The data is already in the correct form. Just make sure the |
519 | index is OK. */ |
520 | - if (unlikely ((ndx + 1) * sizeof (GElf_Sym) > data->d_size)) |
521 | + if (INVALID_NDX (ndx, GElf_Sym, data)) |
522 | { |
523 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
524 | goto out; |
525 | --- elfutils/libelf/gelf_getsyminfo.c |
526 | +++ elfutils/libelf/gelf_getsyminfo.c |
527 | @@ -1,5 +1,5 @@ |
528 | /* Get additional symbol information from symbol table at the given index. |
529 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
530 | + Copyright (C) 2000-2009 Red Hat, Inc. |
531 | This file is part of Red Hat elfutils. |
532 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
533 | |
534 | @@ -84,7 +84,7 @@ gelf_getsyminfo (data, ndx, dst) |
535 | |
536 | /* The data is already in the correct form. Just make sure the |
537 | index is OK. */ |
538 | - if (unlikely ((ndx + 1) * sizeof (GElf_Syminfo) > data->d_size)) |
539 | + if (INVALID_NDX (ndx, GElf_Syminfo, data)) |
540 | { |
541 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
542 | goto out; |
543 | --- elfutils/libelf/gelf_getsymshndx.c |
544 | +++ elfutils/libelf/gelf_getsymshndx.c |
545 | @@ -1,6 +1,6 @@ |
546 | /* Get symbol information and separate section index from symbol table |
547 | at the given index. |
548 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
549 | + Copyright (C) 2000-2009 Red Hat, Inc. |
550 | This file is part of Red Hat elfutils. |
551 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
552 | |
553 | @@ -90,7 +90,7 @@ gelf_getsymshndx (symdata, shndxdata, nd |
554 | section index table. */ |
555 | if (likely (shndxdata_scn != NULL)) |
556 | { |
557 | - if (unlikely ((ndx + 1) * sizeof (Elf32_Word) > shndxdata_scn->d.d_size)) |
558 | + if (INVALID_NDX (ndx, Elf32_Word, &shndxdata_scn->d)) |
559 | { |
560 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
561 | goto out; |
562 | @@ -110,7 +110,7 @@ gelf_getsymshndx (symdata, shndxdata, nd |
563 | table entries has to be adopted. The user better has provided |
564 | a buffer where we can store the information. While copying the |
565 | data we are converting the format. */ |
566 | - if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > symdata->d_size)) |
567 | + if (INVALID_NDX (ndx, Elf32_Sym, symdata)) |
568 | { |
569 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
570 | goto out; |
571 | @@ -139,7 +139,7 @@ gelf_getsymshndx (symdata, shndxdata, nd |
572 | |
573 | /* The data is already in the correct form. Just make sure the |
574 | index is OK. */ |
575 | - if (unlikely ((ndx + 1) * sizeof (GElf_Sym) > symdata->d_size)) |
576 | + if (INVALID_NDX (ndx, GElf_Sym, symdata)) |
577 | { |
578 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
579 | goto out; |
580 | --- elfutils/libelf/gelf_getversym.c |
581 | +++ elfutils/libelf/gelf_getversym.c |
582 | @@ -1,5 +1,5 @@ |
583 | /* Get symbol version information at the given index. |
584 | - Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. |
585 | + Copyright (C) 1999-2009 Red Hat, Inc. |
586 | This file is part of Red Hat elfutils. |
587 | Written by Ulrich Drepper <drepper@redhat.com>, 1999. |
588 | |
589 | @@ -92,7 +92,7 @@ gelf_getversym (data, ndx, dst) |
590 | |
591 | /* The data is already in the correct form. Just make sure the |
592 | index is OK. */ |
593 | - if (unlikely ((ndx + 1) * sizeof (GElf_Versym) > data->d_size)) |
594 | + if (INVALID_NDX (ndx, GElf_Versym, data)) |
595 | { |
596 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
597 | result = NULL; |
598 | --- elfutils/libelf/gelf_update_dyn.c |
599 | +++ elfutils/libelf/gelf_update_dyn.c |
600 | @@ -1,5 +1,5 @@ |
601 | /* Update information in dynamic table at the given index. |
602 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
603 | + Copyright (C) 2000-2009 Red Hat, Inc. |
604 | This file is part of Red Hat elfutils. |
605 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
606 | |
607 | @@ -71,12 +71,6 @@ gelf_update_dyn (data, ndx, src) |
608 | if (data == NULL) |
609 | return 0; |
610 | |
611 | - if (unlikely (ndx < 0)) |
612 | - { |
613 | - __libelf_seterrno (ELF_E_INVALID_INDEX); |
614 | - return 0; |
615 | - } |
616 | - |
617 | if (unlikely (data_scn->d.d_type != ELF_T_DYN)) |
618 | { |
619 | /* The type of the data better should match. */ |
620 | @@ -102,7 +96,7 @@ gelf_update_dyn (data, ndx, src) |
621 | } |
622 | |
623 | /* Check whether we have to resize the data buffer. */ |
624 | - if (unlikely ((ndx + 1) * sizeof (Elf32_Dyn) > data_scn->d.d_size)) |
625 | + if (INVALID_NDX (ndx, Elf32_Dyn, &data_scn->d)) |
626 | { |
627 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
628 | goto out; |
629 | @@ -116,7 +110,7 @@ gelf_update_dyn (data, ndx, src) |
630 | else |
631 | { |
632 | /* Check whether we have to resize the data buffer. */ |
633 | - if (unlikely ((ndx + 1) * sizeof (Elf64_Dyn) > data_scn->d.d_size)) |
634 | + if (INVALID_NDX (ndx, Elf64_Dyn, &data_scn->d)) |
635 | { |
636 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
637 | goto out; |
638 | --- elfutils/libelf/gelf_update_lib.c |
639 | +++ elfutils/libelf/gelf_update_lib.c |
640 | @@ -1,5 +1,5 @@ |
641 | /* Update library in table at the given index. |
642 | - Copyright (C) 2004 Red Hat, Inc. |
643 | + Copyright (C) 2004-2009 Red Hat, Inc. |
644 | This file is part of Red Hat elfutils. |
645 | Written by Ulrich Drepper <drepper@redhat.com>, 2004. |
646 | |
647 | @@ -68,12 +68,6 @@ gelf_update_lib (data, ndx, src) |
648 | if (data == NULL) |
649 | return 0; |
650 | |
651 | - if (unlikely (ndx < 0)) |
652 | - { |
653 | - __libelf_seterrno (ELF_E_INVALID_INDEX); |
654 | - return 0; |
655 | - } |
656 | - |
657 | Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; |
658 | if (unlikely (data_scn->d.d_type != ELF_T_LIB)) |
659 | { |
660 | @@ -87,7 +81,7 @@ gelf_update_lib (data, ndx, src) |
661 | |
662 | /* Check whether we have to resize the data buffer. */ |
663 | int result = 0; |
664 | - if (unlikely ((ndx + 1) * sizeof (Elf64_Lib) > data_scn->d.d_size)) |
665 | + if (INVALID_NDX (ndx, Elf64_Lib, &data_scn->d)) |
666 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
667 | else |
668 | { |
669 | --- elfutils/libelf/gelf_update_move.c |
670 | +++ elfutils/libelf/gelf_update_move.c |
671 | @@ -1,5 +1,5 @@ |
672 | /* Update move structure at the given index. |
673 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
674 | + Copyright (C) 2000-2009 Red Hat, Inc. |
675 | This file is part of Red Hat elfutils. |
676 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
677 | |
678 | @@ -75,8 +75,7 @@ gelf_update_move (data, ndx, src) |
679 | assert (sizeof (GElf_Move) == sizeof (Elf64_Move)); |
680 | |
681 | /* Check whether we have to resize the data buffer. */ |
682 | - if (unlikely (ndx < 0) |
683 | - || unlikely ((ndx + 1) * sizeof (GElf_Move) > data_scn->d.d_size)) |
684 | + if (INVALID_NDX (ndx, GElf_Move, &data_scn->d)) |
685 | { |
686 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
687 | return 0; |
688 | --- elfutils/libelf/gelf_update_rela.c |
689 | +++ elfutils/libelf/gelf_update_rela.c |
690 | @@ -1,5 +1,5 @@ |
691 | /* Update RELA relocation information at given index. |
692 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
693 | + Copyright (C) 2000-2009 Red Hat, Inc. |
694 | This file is part of Red Hat elfutils. |
695 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
696 | |
697 | @@ -68,12 +68,6 @@ gelf_update_rela (Elf_Data *dst, int ndx |
698 | if (dst == NULL) |
699 | return 0; |
700 | |
701 | - if (unlikely (ndx < 0)) |
702 | - { |
703 | - __libelf_seterrno (ELF_E_INVALID_INDEX); |
704 | - return 0; |
705 | - } |
706 | - |
707 | if (unlikely (data_scn->d.d_type != ELF_T_RELA)) |
708 | { |
709 | /* The type of the data better should match. */ |
710 | @@ -101,7 +95,7 @@ gelf_update_rela (Elf_Data *dst, int ndx |
711 | } |
712 | |
713 | /* Check whether we have to resize the data buffer. */ |
714 | - if (unlikely ((ndx + 1) * sizeof (Elf32_Rela) > data_scn->d.d_size)) |
715 | + if (INVALID_NDX (ndx, Elf32_Rela, &data_scn->d)) |
716 | { |
717 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
718 | goto out; |
719 | @@ -117,7 +111,7 @@ gelf_update_rela (Elf_Data *dst, int ndx |
720 | else |
721 | { |
722 | /* Check whether we have to resize the data buffer. */ |
723 | - if (unlikely ((ndx + 1) * sizeof (Elf64_Rela) > data_scn->d.d_size)) |
724 | + if (INVALID_NDX (ndx, Elf64_Rela, &data_scn->d)) |
725 | { |
726 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
727 | goto out; |
728 | --- elfutils/libelf/gelf_update_rel.c |
729 | +++ elfutils/libelf/gelf_update_rel.c |
730 | @@ -1,5 +1,5 @@ |
731 | /* Update REL relocation information at given index. |
732 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
733 | + Copyright (C) 2000-2009 Red Hat, Inc. |
734 | This file is part of Red Hat elfutils. |
735 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
736 | |
737 | @@ -68,12 +68,6 @@ gelf_update_rel (Elf_Data *dst, int ndx, |
738 | if (dst == NULL) |
739 | return 0; |
740 | |
741 | - if (unlikely (ndx < 0)) |
742 | - { |
743 | - __libelf_seterrno (ELF_E_INVALID_INDEX); |
744 | - return 0; |
745 | - } |
746 | - |
747 | if (unlikely (data_scn->d.d_type != ELF_T_REL)) |
748 | { |
749 | /* The type of the data better should match. */ |
750 | @@ -99,7 +93,7 @@ gelf_update_rel (Elf_Data *dst, int ndx, |
751 | } |
752 | |
753 | /* Check whether we have to resize the data buffer. */ |
754 | - if (unlikely ((ndx + 1) * sizeof (Elf32_Rel) > data_scn->d.d_size)) |
755 | + if (INVALID_NDX (ndx, Elf32_Rel, &data_scn->d)) |
756 | { |
757 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
758 | goto out; |
759 | @@ -114,7 +108,7 @@ gelf_update_rel (Elf_Data *dst, int ndx, |
760 | else |
761 | { |
762 | /* Check whether we have to resize the data buffer. */ |
763 | - if (unlikely ((ndx + 1) * sizeof (Elf64_Rel) > data_scn->d.d_size)) |
764 | + if (INVALID_NDX (ndx, Elf64_Rel, &data_scn->d)) |
765 | { |
766 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
767 | goto out; |
768 | --- elfutils/libelf/gelf_update_sym.c |
769 | +++ elfutils/libelf/gelf_update_sym.c |
770 | @@ -1,5 +1,5 @@ |
771 | /* Update symbol information in symbol table at the given index. |
772 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
773 | + Copyright (C) 2000-2009 Red Hat, Inc. |
774 | This file is part of Red Hat elfutils. |
775 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
776 | |
777 | @@ -72,12 +72,6 @@ gelf_update_sym (data, ndx, src) |
778 | if (data == NULL) |
779 | return 0; |
780 | |
781 | - if (unlikely (ndx < 0)) |
782 | - { |
783 | - __libelf_seterrno (ELF_E_INVALID_INDEX); |
784 | - return 0; |
785 | - } |
786 | - |
787 | if (unlikely (data_scn->d.d_type != ELF_T_SYM)) |
788 | { |
789 | /* The type of the data better should match. */ |
790 | @@ -102,7 +96,7 @@ gelf_update_sym (data, ndx, src) |
791 | } |
792 | |
793 | /* Check whether we have to resize the data buffer. */ |
794 | - if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > data_scn->d.d_size)) |
795 | + if (INVALID_NDX (ndx, Elf32_Sym, &data_scn->d)) |
796 | { |
797 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
798 | goto out; |
799 | @@ -125,7 +119,7 @@ gelf_update_sym (data, ndx, src) |
800 | else |
801 | { |
802 | /* Check whether we have to resize the data buffer. */ |
803 | - if (unlikely ((ndx + 1) * sizeof (Elf64_Sym) > data_scn->d.d_size)) |
804 | + if (INVALID_NDX (ndx, Elf64_Sym, &data_scn->d)) |
805 | { |
806 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
807 | goto out; |
808 | --- elfutils/libelf/gelf_update_syminfo.c |
809 | +++ elfutils/libelf/gelf_update_syminfo.c |
810 | @@ -1,5 +1,5 @@ |
811 | /* Update additional symbol information in symbol table at the given index. |
812 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
813 | + Copyright (C) 2000-2009 Red Hat, Inc. |
814 | This file is part of Red Hat elfutils. |
815 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
816 | |
817 | @@ -72,12 +72,6 @@ gelf_update_syminfo (data, ndx, src) |
818 | if (data == NULL) |
819 | return 0; |
820 | |
821 | - if (unlikely (ndx < 0)) |
822 | - { |
823 | - __libelf_seterrno (ELF_E_INVALID_INDEX); |
824 | - return 0; |
825 | - } |
826 | - |
827 | if (unlikely (data_scn->d.d_type != ELF_T_SYMINFO)) |
828 | { |
829 | /* The type of the data better should match. */ |
830 | @@ -93,7 +87,7 @@ gelf_update_syminfo (data, ndx, src) |
831 | rwlock_wrlock (scn->elf->lock); |
832 | |
833 | /* Check whether we have to resize the data buffer. */ |
834 | - if (unlikely ((ndx + 1) * sizeof (GElf_Syminfo) > data_scn->d.d_size)) |
835 | + if (INVALID_NDX (ndx, GElf_Syminfo, &data_scn->d)) |
836 | { |
837 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
838 | goto out; |
839 | --- elfutils/libelf/gelf_update_symshndx.c |
840 | +++ elfutils/libelf/gelf_update_symshndx.c |
841 | @@ -1,6 +1,6 @@ |
842 | /* Update symbol information and section index in symbol table at the |
843 | given index. |
844 | - Copyright (C) 2000, 2001, 2002 Red Hat, Inc. |
845 | + Copyright (C) 2000-2009 Red Hat, Inc. |
846 | This file is part of Red Hat elfutils. |
847 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
848 | |
849 | @@ -77,12 +77,6 @@ gelf_update_symshndx (symdata, shndxdata |
850 | if (symdata == NULL) |
851 | return 0; |
852 | |
853 | - if (unlikely (ndx < 0)) |
854 | - { |
855 | - __libelf_seterrno (ELF_E_INVALID_INDEX); |
856 | - return 0; |
857 | - } |
858 | - |
859 | if (unlikely (symdata_scn->d.d_type != ELF_T_SYM)) |
860 | { |
861 | /* The type of the data better should match. */ |
862 | @@ -128,7 +122,7 @@ gelf_update_symshndx (symdata, shndxdata |
863 | } |
864 | |
865 | /* Check whether we have to resize the data buffer. */ |
866 | - if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > symdata_scn->d.d_size)) |
867 | + if (INVALID_NDX (ndx, Elf32_Sym, &symdata_scn->d)) |
868 | { |
869 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
870 | goto out; |
871 | @@ -151,7 +145,7 @@ gelf_update_symshndx (symdata, shndxdata |
872 | else |
873 | { |
874 | /* Check whether we have to resize the data buffer. */ |
875 | - if (unlikely ((ndx + 1) * sizeof (Elf64_Sym) > symdata_scn->d.d_size)) |
876 | + if (INVALID_NDX (ndx, Elf64_Sym, &symdata_scn->d)) |
877 | { |
878 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
879 | goto out; |
880 | --- elfutils/libelf/gelf_update_versym.c |
881 | +++ elfutils/libelf/gelf_update_versym.c |
882 | @@ -1,5 +1,5 @@ |
883 | /* Update symbol version information. |
884 | - Copyright (C) 2001, 2002 Red Hat, Inc. |
885 | + Copyright (C) 2001-2009 Red Hat, Inc. |
886 | This file is part of Red Hat elfutils. |
887 | Written by Ulrich Drepper <drepper@redhat.com>, 2001. |
888 | |
889 | @@ -75,8 +75,7 @@ gelf_update_versym (data, ndx, src) |
890 | assert (sizeof (GElf_Versym) == sizeof (Elf64_Versym)); |
891 | |
892 | /* Check whether we have to resize the data buffer. */ |
893 | - if (unlikely (ndx < 0) |
894 | - || unlikely ((ndx + 1) * sizeof (GElf_Versym) > data_scn->d.d_size)) |
895 | + if (INVALID_NDX (ndx, GElf_Versym, &data_scn->d)) |
896 | { |
897 | __libelf_seterrno (ELF_E_INVALID_INDEX); |
898 | return 0; |
899 | --- elfutils/libelf/libelfP.h |
900 | +++ elfutils/libelf/libelfP.h |
901 | @@ -608,4 +608,8 @@ extern uint32_t __libelf_crc32 (uint32_t |
902 | /* Align offset to 4 bytes as needed for note name and descriptor data. */ |
903 | #define NOTE_ALIGN(n) (((n) + 3) & -4U) |
904 | |
905 | +/* Convenience macro. */ |
906 | +#define INVALID_NDX(ndx, type, data) \ |
907 | + unlikely ((data)->d_size / sizeof (type) <= (unsigned int) (ndx)) |
908 | + |
909 | #endif /* libelfP.h */ |
910 | --- elfutils/src/ChangeLog |
911 | +++ elfutils/src/ChangeLog |
912 | @@ -228,6 +228,12 @@ |
913 | |
914 | * readelf.c (dwarf_attr_string): Grok DW_AT_GNU_odr_signature. |
915 | |
916 | +2011-03-23 Petr Machata <pmachata@redhat.com> |
917 | + |
918 | + * readelf.c (handle_dynamic, handle_relocs_rel) |
919 | + (handle_relocs_rela, handle_versym, print_liblist): |
920 | + Use gelf_fsize instead of relying on shdr->sh_entsize. |
921 | + |
922 | 2011-02-11 Roland McGrath <roland@redhat.com> |
923 | |
924 | * elfcmp.c (verbose): New variable. |
925 | @@ -1940,6 +1946,16 @@ |
926 | object symbols or symbols with unknown type. |
927 | (check_rel): Likewise. |
928 | |
929 | +2005-06-09 Roland McGrath <roland@redhat.com> |
930 | + |
931 | + * readelf.c (handle_dynamic, handle_symtab): Check for bogus sh_link. |
932 | + (handle_verneed, handle_verdef, handle_versym, handle_hash): Likewise. |
933 | + (handle_scngrp): Check for bogus sh_info. |
934 | + |
935 | + * strip.c (handle_elf): Check for bogus values in sh_link, sh_info, |
936 | + st_shndx, e_shstrndx, and SHT_GROUP or SHT_SYMTAB_SHNDX data. |
937 | + Don't use assert on input values, instead bail with "illformed" error. |
938 | + |
939 | 2005-06-08 Roland McGrath <roland@redhat.com> |
940 | |
941 | * readelf.c (print_ops): Add consts. |
942 | @@ -1985,6 +2001,19 @@ |
943 | |
944 | * readelf.c (dwarf_tag_string): Add new tags. |
945 | |
946 | +2005-05-17 Jakub Jelinek <jakub@redhat.com> |
947 | + |
948 | + * elflint.c (check_hash): Don't check entries beyond end of section. |
949 | + (check_note): Don't crash if gelf_rawchunk fails. |
950 | + (section_name): Return <invalid> if gelf_getshdr returns NULL. |
951 | + |
952 | +2005-05-14 Jakub Jelinek <jakub@redhat.com> |
953 | + |
954 | + * elflint.c (section_name): Return "<invalid>" instead of |
955 | + crashing on invalid section name. |
956 | + (check_symtab, is_rel_dyn, check_rela, check_rel, check_dynamic, |
957 | + check_symtab_shndx, check_hash, check_versym): Robustify. |
958 | + |
959 | 2005-05-08 Roland McGrath <roland@redhat.com> |
960 | |
961 | * strip.c (handle_elf): Don't translate hash and versym data formats, |
962 | --- elfutils/src/elflint.c |
963 | +++ elfutils/src/elflint.c |
964 | @@ -131,6 +131,10 @@ static uint32_t shstrndx; |
965 | /* Array to count references in section groups. */ |
966 | static int *scnref; |
967 | |
968 | +/* Numbers of sections and program headers. */ |
969 | +static unsigned int shnum; |
970 | +static unsigned int phnum; |
971 | + |
972 | |
973 | int |
974 | main (int argc, char *argv[]) |
975 | @@ -319,10 +323,19 @@ section_name (Ebl *ebl, int idx) |
976 | { |
977 | GElf_Shdr shdr_mem; |
978 | GElf_Shdr *shdr; |
979 | + const char *ret; |
980 | + |
981 | + if ((unsigned int) idx > shnum) |
982 | + return "<invalid>"; |
983 | |
984 | shdr = gelf_getshdr (elf_getscn (ebl->elf, idx), &shdr_mem); |
985 | + if (shdr == NULL) |
986 | + return "<invalid>"; |
987 | |
988 | - return elf_strptr (ebl->elf, shstrndx, shdr->sh_name); |
989 | + ret = elf_strptr (ebl->elf, shstrndx, shdr->sh_name); |
990 | + if (ret == NULL) |
991 | + return "<invalid>"; |
992 | + return ret; |
993 | } |
994 | |
995 | |
996 | @@ -344,11 +357,6 @@ static const int valid_e_machine[] = |
997 | (sizeof (valid_e_machine) / sizeof (valid_e_machine[0])) |
998 | |
999 | |
1000 | -/* Numbers of sections and program headers. */ |
1001 | -static unsigned int shnum; |
1002 | -static unsigned int phnum; |
1003 | - |
1004 | - |
1005 | static void |
1006 | check_elf_header (Ebl *ebl, GElf_Ehdr *ehdr, size_t size) |
1007 | { |
1008 | @@ -632,7 +640,8 @@ section [%2d] '%s': symbol table cannot |
1009 | } |
1010 | } |
1011 | |
1012 | - if (shdr->sh_entsize != gelf_fsize (ebl->elf, ELF_T_SYM, 1, EV_CURRENT)) |
1013 | + size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_SYM, 1, EV_CURRENT); |
1014 | + if (shdr->sh_entsize != sh_entsize) |
1015 | ERROR (gettext ("\ |
1016 | section [%2u] '%s': entry size is does not match ElfXX_Sym\n"), |
1017 | idx, section_name (ebl, idx)); |
1018 | @@ -670,7 +679,7 @@ section [%2d] '%s': XINDEX for zeroth en |
1019 | xndxscnidx, section_name (ebl, xndxscnidx)); |
1020 | } |
1021 | |
1022 | - for (size_t cnt = 1; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) |
1023 | + for (size_t cnt = 1; cnt < shdr->sh_size / sh_entsize; ++cnt) |
1024 | { |
1025 | sym = gelf_getsymshndx (data, xndxdata, cnt, &sym_mem, &xndx); |
1026 | if (sym == NULL) |
1027 | @@ -690,7 +699,8 @@ section [%2d] '%s': symbol %zu: invalid |
1028 | else |
1029 | { |
1030 | name = elf_strptr (ebl->elf, shdr->sh_link, sym->st_name); |
1031 | - assert (name != NULL); |
1032 | + assert (name != NULL |
1033 | + || strshdr->sh_type != SHT_STRTAB); |
1034 | } |
1035 | |
1036 | if (sym->st_shndx == SHN_XINDEX) |
1037 | @@ -1039,9 +1049,11 @@ is_rel_dyn (Ebl *ebl, const GElf_Ehdr *e |
1038 | { |
1039 | GElf_Shdr rcshdr_mem; |
1040 | const GElf_Shdr *rcshdr = gelf_getshdr (scn, &rcshdr_mem); |
1041 | - assert (rcshdr != NULL); |
1042 | |
1043 | - if (rcshdr->sh_type == SHT_DYNAMIC) |
1044 | + if (rcshdr == NULL) |
1045 | + break; |
1046 | + |
1047 | + if (rcshdr->sh_type == SHT_DYNAMIC && rcshdr->sh_entsize) |
1048 | { |
1049 | /* Found the dynamic section. Look through it. */ |
1050 | Elf_Data *d = elf_getdata (scn, NULL); |
1051 | @@ -1051,7 +1063,9 @@ is_rel_dyn (Ebl *ebl, const GElf_Ehdr *e |
1052 | { |
1053 | GElf_Dyn dyn_mem; |
1054 | GElf_Dyn *dyn = gelf_getdyn (d, cnt, &dyn_mem); |
1055 | - assert (dyn != NULL); |
1056 | + |
1057 | + if (dyn == NULL) |
1058 | + break; |
1059 | |
1060 | if (dyn->d_tag == DT_RELCOUNT) |
1061 | { |
1062 | @@ -1065,7 +1079,9 @@ section [%2d] '%s': DT_RELCOUNT used for |
1063 | /* Does the number specified number of relative |
1064 | relocations exceed the total number of |
1065 | relocations? */ |
1066 | - if (dyn->d_un.d_val > shdr->sh_size / shdr->sh_entsize) |
1067 | + if (shdr->sh_entsize != 0 |
1068 | + && dyn->d_un.d_val > (shdr->sh_size |
1069 | + / shdr->sh_entsize)) |
1070 | ERROR (gettext ("\ |
1071 | section [%2d] '%s': DT_RELCOUNT value %d too high for this section\n"), |
1072 | idx, section_name (ebl, idx), |
1073 | @@ -1225,7 +1241,8 @@ section [%2d] '%s': no relocations for m |
1074 | } |
1075 | } |
1076 | |
1077 | - if (shdr->sh_entsize != gelf_fsize (ebl->elf, reltype, 1, EV_CURRENT)) |
1078 | + size_t sh_entsize = gelf_fsize (ebl->elf, reltype, 1, EV_CURRENT); |
1079 | + if (shdr->sh_entsize != sh_entsize) |
1080 | ERROR (gettext (reltype == ELF_T_RELA ? "\ |
1081 | section [%2d] '%s': section entry size does not match ElfXX_Rela\n" : "\ |
1082 | section [%2d] '%s': section entry size does not match ElfXX_Rel\n"), |
1083 | @@ -1448,7 +1465,8 @@ check_rela (Ebl *ebl, GElf_Ehdr *ehdr, G |
1084 | Elf_Data *symdata = elf_getdata (symscn, NULL); |
1085 | enum load_state state = state_undecided; |
1086 | |
1087 | - for (size_t cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) |
1088 | + size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_RELA, 1, EV_CURRENT); |
1089 | + for (size_t cnt = 0; cnt < shdr->sh_size / sh_entsize; ++cnt) |
1090 | { |
1091 | GElf_Rela rela_mem; |
1092 | GElf_Rela *rela = gelf_getrela (data, cnt, &rela_mem); |
1093 | @@ -1498,7 +1516,8 @@ check_rel (Ebl *ebl, GElf_Ehdr *ehdr, GE |
1094 | Elf_Data *symdata = elf_getdata (symscn, NULL); |
1095 | enum load_state state = state_undecided; |
1096 | |
1097 | - for (size_t cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) |
1098 | + size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_REL, 1, EV_CURRENT); |
1099 | + for (size_t cnt = 0; cnt < shdr->sh_size / sh_entsize; ++cnt) |
1100 | { |
1101 | GElf_Rel rel_mem; |
1102 | GElf_Rel *rel = gelf_getrel (data, cnt, &rel_mem); |
1103 | @@ -1597,7 +1616,8 @@ section [%2d] '%s': referenced as string |
1104 | shdr->sh_link, section_name (ebl, shdr->sh_link), |
1105 | idx, section_name (ebl, idx)); |
1106 | |
1107 | - if (shdr->sh_entsize != gelf_fsize (ebl->elf, ELF_T_DYN, 1, EV_CURRENT)) |
1108 | + size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_DYN, 1, EV_CURRENT); |
1109 | + if (shdr->sh_entsize != sh_entsize) |
1110 | ERROR (gettext ("\ |
1111 | section [%2d] '%s': section entry size does not match ElfXX_Dyn\n"), |
1112 | idx, section_name (ebl, idx)); |
1113 | @@ -1607,7 +1627,7 @@ section [%2d] '%s': section entry size d |
1114 | idx, section_name (ebl, idx)); |
1115 | |
1116 | bool non_null_warned = false; |
1117 | - for (cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) |
1118 | + for (cnt = 0; cnt < shdr->sh_size / sh_entsize; ++cnt) |
1119 | { |
1120 | GElf_Dyn dyn_mem; |
1121 | GElf_Dyn *dyn = gelf_getdyn (data, cnt, &dyn_mem); |
1122 | @@ -1879,6 +1899,8 @@ section [%2d] '%s': entry size does not |
1123 | idx, section_name (ebl, idx)); |
1124 | |
1125 | if (symshdr != NULL |
1126 | + && shdr->sh_entsize |
1127 | + && symshdr->sh_entsize |
1128 | && (shdr->sh_size / shdr->sh_entsize |
1129 | < symshdr->sh_size / symshdr->sh_entsize)) |
1130 | ERROR (gettext ("\ |
1131 | @@ -1905,6 +1927,12 @@ section [%2d] '%s': extended section ind |
1132 | } |
1133 | |
1134 | Elf_Data *data = elf_getdata (elf_getscn (ebl->elf, idx), NULL); |
1135 | + if (data == NULL) |
1136 | + { |
1137 | + ERROR (gettext ("section [%2d] '%s': cannot get section data\n"), |
1138 | + idx, section_name (ebl, idx)); |
1139 | + return; |
1140 | + } |
1141 | |
1142 | if (*((Elf32_Word *) data->d_buf) != 0) |
1143 | ERROR (gettext ("symbol 0 should have zero extended section index\n")); |
1144 | @@ -1947,7 +1975,7 @@ section [%2d] '%s': hash table section i |
1145 | |
1146 | size_t maxidx = nchain; |
1147 | |
1148 | - if (symshdr != NULL) |
1149 | + if (symshdr != NULL && symshdr->sh_entsize != 0) |
1150 | { |
1151 | size_t symsize = symshdr->sh_size / symshdr->sh_entsize; |
1152 | |
1153 | @@ -1958,18 +1986,28 @@ section [%2d] '%s': hash table section i |
1154 | maxidx = symsize; |
1155 | } |
1156 | |
1157 | + Elf32_Word *buf = (Elf32_Word *) data->d_buf; |
1158 | + Elf32_Word *end = (Elf32_Word *) ((char *) data->d_buf + shdr->sh_size); |
1159 | size_t cnt; |
1160 | for (cnt = 2; cnt < 2 + nbucket; ++cnt) |
1161 | - if (((Elf32_Word *) data->d_buf)[cnt] >= maxidx) |
1162 | + { |
1163 | + if (buf + cnt >= end) |
1164 | + break; |
1165 | + else if (buf[cnt] >= maxidx) |
1166 | ERROR (gettext ("\ |
1167 | section [%2d] '%s': hash bucket reference %zu out of bounds\n"), |
1168 | idx, section_name (ebl, idx), cnt - 2); |
1169 | + } |
1170 | |
1171 | for (; cnt < 2 + nbucket + nchain; ++cnt) |
1172 | - if (((Elf32_Word *) data->d_buf)[cnt] >= maxidx) |
1173 | + { |
1174 | + if (buf + cnt >= end) |
1175 | + break; |
1176 | + else if (buf[cnt] >= maxidx) |
1177 | ERROR (gettext ("\ |
1178 | section [%2d] '%s': hash chain reference %zu out of bounds\n"), |
1179 | idx, section_name (ebl, idx), cnt - 2 - nbucket); |
1180 | + } |
1181 | } |
1182 | |
1183 | |
1184 | @@ -1999,18 +2037,28 @@ section [%2d] '%s': hash table section i |
1185 | maxidx = symsize; |
1186 | } |
1187 | |
1188 | + Elf64_Xword *buf = (Elf64_Xword *) data->d_buf; |
1189 | + Elf64_Xword *end = (Elf64_Xword *) ((char *) data->d_buf + shdr->sh_size); |
1190 | size_t cnt; |
1191 | for (cnt = 2; cnt < 2 + nbucket; ++cnt) |
1192 | - if (((Elf64_Xword *) data->d_buf)[cnt] >= maxidx) |
1193 | + { |
1194 | + if (buf + cnt >= end) |
1195 | + break; |
1196 | + else if (buf[cnt] >= maxidx) |
1197 | ERROR (gettext ("\ |
1198 | section [%2d] '%s': hash bucket reference %zu out of bounds\n"), |
1199 | idx, section_name (ebl, idx), cnt - 2); |
1200 | + } |
1201 | |
1202 | for (; cnt < 2 + nbucket + nchain; ++cnt) |
1203 | - if (((Elf64_Xword *) data->d_buf)[cnt] >= maxidx) |
1204 | + { |
1205 | + if (buf + cnt >= end) |
1206 | + break; |
1207 | + else if (buf[cnt] >= maxidx) |
1208 | ERROR (gettext ("\ |
1209 | section [%2d] '%s': hash chain reference %" PRIu64 " out of bounds\n"), |
1210 | - idx, section_name (ebl, idx), (uint64_t) (cnt - 2 - nbucket)); |
1211 | + idx, section_name (ebl, idx), (uint64_t) cnt - 2 - nbucket); |
1212 | + } |
1213 | } |
1214 | |
1215 | |
1216 | @@ -2035,7 +2083,7 @@ section [%2d] '%s': bitmask size not pow |
1217 | if (shdr->sh_size < (4 + bitmask_words + nbuckets) * sizeof (Elf32_Word)) |
1218 | { |
1219 | ERROR (gettext ("\ |
1220 | -section [%2d] '%s': hash table section is too small (is %ld, expected at least%ld)\n"), |
1221 | +section [%2d] '%s': hash table section is too small (is %ld, expected at least %ld)\n"), |
1222 | idx, section_name (ebl, idx), (long int) shdr->sh_size, |
1223 | (long int) ((4 + bitmask_words + nbuckets) * sizeof (Elf32_Word))); |
1224 | return; |
1225 | @@ -2707,8 +2755,9 @@ section [%2d] '%s' refers in sh_link to |
1226 | |
1227 | /* The number of elements in the version symbol table must be the |
1228 | same as the number of symbols. */ |
1229 | - if (shdr->sh_size / shdr->sh_entsize |
1230 | - != symshdr->sh_size / symshdr->sh_entsize) |
1231 | + if (shdr->sh_entsize && symshdr->sh_entsize |
1232 | + && (shdr->sh_size / shdr->sh_entsize |
1233 | + != symshdr->sh_size / symshdr->sh_entsize)) |
1234 | ERROR (gettext ("\ |
1235 | section [%2d] '%s' has different number of entries than symbol table [%2d] '%s'\n"), |
1236 | idx, section_name (ebl, idx), |
1237 | --- elfutils/src/readelf.c |
1238 | +++ elfutils/src/readelf.c |
1239 | @@ -1191,6 +1191,8 @@ handle_scngrp (Ebl *ebl, Elf_Scn *scn, G |
1240 | Elf32_Word *grpref = (Elf32_Word *) data->d_buf; |
1241 | |
1242 | GElf_Sym sym_mem; |
1243 | + GElf_Sym *sym = gelf_getsym (symdata, shdr->sh_info, &sym_mem); |
1244 | + |
1245 | printf ((grpref[0] & GRP_COMDAT) |
1246 | ? ngettext ("\ |
1247 | \nCOMDAT section group [%2zu] '%s' with signature '%s' contains %zu entry:\n", |
1248 | @@ -1203,8 +1205,8 @@ handle_scngrp (Ebl *ebl, Elf_Scn *scn, G |
1249 | data->d_size / sizeof (Elf32_Word) - 1), |
1250 | elf_ndxscn (scn), |
1251 | elf_strptr (ebl->elf, shstrndx, shdr->sh_name), |
1252 | - elf_strptr (ebl->elf, symshdr->sh_link, |
1253 | - gelf_getsym (symdata, shdr->sh_info, &sym_mem)->st_name) |
1254 | + (sym == NULL ? NULL |
1255 | + : elf_strptr (ebl->elf, symshdr->sh_link, sym->st_name)) |
1256 | ?: gettext ("<INVALID SYMBOL>"), |
1257 | data->d_size / sizeof (Elf32_Word) - 1); |
1258 | |
1259 | @@ -1355,10 +1357,12 @@ static void |
1260 | handle_dynamic (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr) |
1261 | { |
1262 | int class = gelf_getclass (ebl->elf); |
1263 | - GElf_Shdr glink; |
1264 | + GElf_Shdr glink_mem; |
1265 | + GElf_Shdr *glink; |
1266 | Elf_Data *data; |
1267 | size_t cnt; |
1268 | size_t shstrndx; |
1269 | + size_t sh_entsize; |
1270 | |
1271 | /* Get the data of the section. */ |
1272 | data = elf_getdata (scn, NULL); |
1273 | @@ -1370,21 +1374,26 @@ handle_dynamic (Ebl *ebl, Elf_Scn *scn, |
1274 | error (EXIT_FAILURE, 0, |
1275 | gettext ("cannot get section header string table index")); |
1276 | |
1277 | + sh_entsize = gelf_fsize (ebl->elf, ELF_T_DYN, 1, EV_CURRENT); |
1278 | + |
1279 | + glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), &glink_mem); |
1280 | + if (glink == NULL) |
1281 | + error (EXIT_FAILURE, 0, gettext ("invalid sh_link value in section %Zu"), |
1282 | + elf_ndxscn (scn)); |
1283 | + |
1284 | printf (ngettext ("\ |
1285 | \nDynamic segment contains %lu entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", |
1286 | "\ |
1287 | \nDynamic segment contains %lu entries:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", |
1288 | - shdr->sh_size / shdr->sh_entsize), |
1289 | - (unsigned long int) (shdr->sh_size / shdr->sh_entsize), |
1290 | + shdr->sh_size / sh_entsize), |
1291 | + (unsigned long int) (shdr->sh_size / sh_entsize), |
1292 | class == ELFCLASS32 ? 10 : 18, shdr->sh_addr, |
1293 | shdr->sh_offset, |
1294 | (int) shdr->sh_link, |
1295 | - elf_strptr (ebl->elf, shstrndx, |
1296 | - gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), |
1297 | - &glink)->sh_name)); |
1298 | + elf_strptr (ebl->elf, shstrndx, glink->sh_name)); |
1299 | fputs_unlocked (gettext (" Type Value\n"), stdout); |
1300 | |
1301 | - for (cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) |
1302 | + for (cnt = 0; cnt < shdr->sh_size / sh_entsize; ++cnt) |
1303 | { |
1304 | GElf_Dyn dynmem; |
1305 | GElf_Dyn *dyn = gelf_getdyn (data, cnt, &dynmem); |
1306 | @@ -1533,7 +1542,8 @@ static void |
1307 | handle_relocs_rel (Ebl *ebl, GElf_Ehdr *ehdr, Elf_Scn *scn, GElf_Shdr *shdr) |
1308 | { |
1309 | int class = gelf_getclass (ebl->elf); |
1310 | - int nentries = shdr->sh_size / shdr->sh_entsize; |
1311 | + size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_REL, 1, EV_CURRENT); |
1312 | + int nentries = shdr->sh_size / sh_entsize; |
1313 | |
1314 | /* Get the data of the section. */ |
1315 | Elf_Data *data = elf_getdata (scn, NULL); |
1316 | @@ -1719,7 +1729,8 @@ static void |
1317 | handle_relocs_rela (Ebl *ebl, GElf_Ehdr *ehdr, Elf_Scn *scn, GElf_Shdr *shdr) |
1318 | { |
1319 | int class = gelf_getclass (ebl->elf); |
1320 | - int nentries = shdr->sh_size / shdr->sh_entsize; |
1321 | + size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_RELA, 1, EV_CURRENT); |
1322 | + int nentries = shdr->sh_size / sh_entsize; |
1323 | |
1324 | /* Get the data of the section. */ |
1325 | Elf_Data *data = elf_getdata (scn, NULL); |
1326 | @@ -1966,6 +1977,13 @@ handle_symtab (Ebl *ebl, Elf_Scn *scn, G |
1327 | error (EXIT_FAILURE, 0, |
1328 | gettext ("cannot get section header string table index")); |
1329 | |
1330 | + GElf_Shdr glink_mem; |
1331 | + GElf_Shdr *glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), |
1332 | + &glink_mem); |
1333 | + if (glink == NULL) |
1334 | + error (EXIT_FAILURE, 0, gettext ("invalid sh_link value in section %Zu"), |
1335 | + elf_ndxscn (scn)); |
1336 | + |
1337 | /* Now we can compute the number of entries in the section. */ |
1338 | unsigned int nsyms = data->d_size / (class == ELFCLASS32 |
1339 | ? sizeof (Elf32_Sym) |
1340 | @@ -1976,15 +1994,12 @@ handle_symtab (Ebl *ebl, Elf_Scn *scn, G |
1341 | nsyms), |
1342 | (unsigned int) elf_ndxscn (scn), |
1343 | elf_strptr (ebl->elf, shstrndx, shdr->sh_name), nsyms); |
1344 | - GElf_Shdr glink; |
1345 | printf (ngettext (" %lu local symbol String table: [%2u] '%s'\n", |
1346 | " %lu local symbols String table: [%2u] '%s'\n", |
1347 | shdr->sh_info), |
1348 | (unsigned long int) shdr->sh_info, |
1349 | (unsigned int) shdr->sh_link, |
1350 | - elf_strptr (ebl->elf, shstrndx, |
1351 | - gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), |
1352 | - &glink)->sh_name)); |
1353 | + elf_strptr (ebl->elf, shstrndx, glink->sh_name)); |
1354 | |
1355 | fputs_unlocked (class == ELFCLASS32 |
1356 | ? gettext ("\ |
1357 | @@ -2220,7 +2235,13 @@ handle_verneed (Ebl *ebl, Elf_Scn *scn, |
1358 | error (EXIT_FAILURE, 0, |
1359 | gettext ("cannot get section header string table index")); |
1360 | |
1361 | - GElf_Shdr glink; |
1362 | + GElf_Shdr glink_mem; |
1363 | + GElf_Shdr *glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), |
1364 | + &glink_mem); |
1365 | + if (glink == NULL) |
1366 | + error (EXIT_FAILURE, 0, gettext ("invalid sh_link value in section %Zu"), |
1367 | + elf_ndxscn (scn)); |
1368 | + |
1369 | printf (ngettext ("\ |
1370 | \nVersion needs section [%2u] '%s' contains %d entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", |
1371 | "\ |
1372 | @@ -2231,9 +2252,7 @@ handle_verneed (Ebl *ebl, Elf_Scn *scn, |
1373 | class == ELFCLASS32 ? 10 : 18, shdr->sh_addr, |
1374 | shdr->sh_offset, |
1375 | (unsigned int) shdr->sh_link, |
1376 | - elf_strptr (ebl->elf, shstrndx, |
1377 | - gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), |
1378 | - &glink)->sh_name)); |
1379 | + elf_strptr (ebl->elf, shstrndx, glink->sh_name)); |
1380 | |
1381 | unsigned int offset = 0; |
1382 | for (int cnt = shdr->sh_info; --cnt >= 0; ) |
1383 | @@ -2286,8 +2305,14 @@ handle_verdef (Ebl *ebl, Elf_Scn *scn, G |
1384 | error (EXIT_FAILURE, 0, |
1385 | gettext ("cannot get section header string table index")); |
1386 | |
1387 | + GElf_Shdr glink_mem; |
1388 | + GElf_Shdr *glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), |
1389 | + &glink_mem); |
1390 | + if (glink == NULL) |
1391 | + error (EXIT_FAILURE, 0, gettext ("invalid sh_link value in section %Zu"), |
1392 | + elf_ndxscn (scn)); |
1393 | + |
1394 | int class = gelf_getclass (ebl->elf); |
1395 | - GElf_Shdr glink; |
1396 | printf (ngettext ("\ |
1397 | \nVersion definition section [%2u] '%s' contains %d entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", |
1398 | "\ |
1399 | @@ -2299,9 +2324,7 @@ handle_verdef (Ebl *ebl, Elf_Scn *scn, G |
1400 | class == ELFCLASS32 ? 10 : 18, shdr->sh_addr, |
1401 | shdr->sh_offset, |
1402 | (unsigned int) shdr->sh_link, |
1403 | - elf_strptr (ebl->elf, shstrndx, |
1404 | - gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), |
1405 | - &glink)->sh_name)); |
1406 | + elf_strptr (ebl->elf, shstrndx, glink->sh_name)); |
1407 | |
1408 | unsigned int offset = 0; |
1409 | for (int cnt = shdr->sh_info; --cnt >= 0; ) |
1410 | @@ -2563,25 +2586,30 @@ handle_versym (Ebl *ebl, Elf_Scn *scn, G |
1411 | filename = NULL; |
1412 | } |
1413 | |
1414 | + GElf_Shdr glink_mem; |
1415 | + GElf_Shdr *glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), |
1416 | + &glink_mem); |
1417 | + size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_HALF, 1, EV_CURRENT); |
1418 | + if (glink == NULL) |
1419 | + error (EXIT_FAILURE, 0, gettext ("invalid sh_link value in section %Zu"), |
1420 | + elf_ndxscn (scn)); |
1421 | + |
1422 | /* Print the header. */ |
1423 | - GElf_Shdr glink; |
1424 | printf (ngettext ("\ |
1425 | \nVersion symbols section [%2u] '%s' contains %d entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'", |
1426 | "\ |
1427 | \nVersion symbols section [%2u] '%s' contains %d entries:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'", |
1428 | - shdr->sh_size / shdr->sh_entsize), |
1429 | + shdr->sh_size / sh_entsize), |
1430 | (unsigned int) elf_ndxscn (scn), |
1431 | elf_strptr (ebl->elf, shstrndx, shdr->sh_name), |
1432 | - (int) (shdr->sh_size / shdr->sh_entsize), |
1433 | + (int) (shdr->sh_size / sh_entsize), |
1434 | class == ELFCLASS32 ? 10 : 18, shdr->sh_addr, |
1435 | shdr->sh_offset, |
1436 | (unsigned int) shdr->sh_link, |
1437 | - elf_strptr (ebl->elf, shstrndx, |
1438 | - gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), |
1439 | - &glink)->sh_name)); |
1440 | + elf_strptr (ebl->elf, shstrndx, glink->sh_name)); |
1441 | |
1442 | /* Now we can finally look at the actual contents of this section. */ |
1443 | - for (unsigned int cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) |
1444 | + for (unsigned int cnt = 0; cnt < shdr->sh_size / sh_entsize; ++cnt) |
1445 | { |
1446 | if (cnt % 2 == 0) |
1447 | printf ("\n %4d:", cnt); |
1448 | @@ -2630,7 +2658,17 @@ print_hash_info (Ebl *ebl, Elf_Scn *scn, |
1449 | for (Elf32_Word cnt = 0; cnt < nbucket; ++cnt) |
1450 | ++counts[lengths[cnt]]; |
1451 | |
1452 | - GElf_Shdr glink; |
1453 | + GElf_Shdr glink_mem; |
1454 | + GElf_Shdr *glink = gelf_getshdr (elf_getscn (ebl->elf, |
1455 | + shdr->sh_link), |
1456 | + &glink_mem); |
1457 | + if (glink == NULL) |
1458 | + { |
1459 | + error (0, 0, gettext ("invalid sh_link value in section %Zu"), |
1460 | + elf_ndxscn (scn)); |
1461 | + return; |
1462 | + } |
1463 | + |
1464 | printf (ngettext ("\ |
1465 | \nHistogram for bucket list length in section [%2u] '%s' (total of %d bucket):\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", |
1466 | "\ |
1467 | @@ -2643,9 +2681,7 @@ print_hash_info (Ebl *ebl, Elf_Scn *scn, |
1468 | shdr->sh_addr, |
1469 | shdr->sh_offset, |
1470 | (unsigned int) shdr->sh_link, |
1471 | - elf_strptr (ebl->elf, shstrndx, |
1472 | - gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), |
1473 | - &glink)->sh_name)); |
1474 | + elf_strptr (ebl->elf, shstrndx, glink->sh_name)); |
1475 | |
1476 | if (extrastr != NULL) |
1477 | fputs (extrastr, stdout); |
1478 | @@ -2905,7 +2941,8 @@ print_liblist (Ebl *ebl) |
1479 | |
1480 | if (shdr != NULL && shdr->sh_type == SHT_GNU_LIBLIST) |
1481 | { |
1482 | - int nentries = shdr->sh_size / shdr->sh_entsize; |
1483 | + size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_LIB, 1, EV_CURRENT); |
1484 | + int nentries = shdr->sh_size / sh_entsize; |
1485 | printf (ngettext ("\ |
1486 | \nLibrary list section [%2zu] '%s' at offset %#0" PRIx64 " contains %d entry:\n", |
1487 | "\ |
1488 | @@ -4646,6 +4683,16 @@ print_debug_aranges_section (Dwfl_Module |
1489 | return; |
1490 | } |
1491 | |
1492 | + GElf_Shdr glink_mem; |
1493 | + GElf_Shdr *glink; |
1494 | + glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), &glink_mem); |
1495 | + if (glink == NULL) |
1496 | + { |
1497 | + error (0, 0, gettext ("invalid sh_link value in section %Zu"), |
1498 | + elf_ndxscn (scn)); |
1499 | + return; |
1500 | + } |
1501 | + |
1502 | printf (ngettext ("\ |
1503 | \nDWARF section [%2zu] '%s' at offset %#" PRIx64 " contains %zu entry:\n", |
1504 | "\ |
1505 | --- elfutils/src/strip.c |
1506 | +++ elfutils/src/strip.c |
1507 | @@ -572,6 +572,11 @@ handle_elf (int fd, Elf *elf, const char |
1508 | goto fail_close; |
1509 | } |
1510 | |
1511 | + if (shstrndx >= shnum) |
1512 | + goto illformed; |
1513 | + |
1514 | +#define elf_assert(test) do { if (!(test)) goto illformed; } while (0) |
1515 | + |
1516 | /* Storage for section information. We leave room for two more |
1517 | entries since we unconditionally create a section header string |
1518 | table. Maybe some weird tool created an ELF file without one. |
1519 | @@ -593,7 +598,7 @@ handle_elf (int fd, Elf *elf, const char |
1520 | { |
1521 | /* This should always be true (i.e., there should not be any |
1522 | holes in the numbering). */ |
1523 | - assert (elf_ndxscn (scn) == cnt); |
1524 | + elf_assert (elf_ndxscn (scn) == cnt); |
1525 | |
1526 | shdr_info[cnt].scn = scn; |
1527 | |
1528 | @@ -606,6 +611,7 @@ handle_elf (int fd, Elf *elf, const char |
1529 | shdr_info[cnt].shdr.sh_name); |
1530 | if (shdr_info[cnt].name == NULL) |
1531 | { |
1532 | + illformed: |
1533 | error (0, 0, gettext ("illformed file '%s'"), fname); |
1534 | goto fail_close; |
1535 | } |
1536 | @@ -615,6 +621,8 @@ handle_elf (int fd, Elf *elf, const char |
1537 | |
1538 | /* Remember the shdr.sh_link value. */ |
1539 | shdr_info[cnt].old_sh_link = shdr_info[cnt].shdr.sh_link; |
1540 | + if (shdr_info[cnt].old_sh_link >= shnum) |
1541 | + goto illformed; |
1542 | |
1543 | /* Sections in files other than relocatable object files which |
1544 | are not loaded can be freely moved by us. In relocatable |
1545 | @@ -627,7 +635,7 @@ handle_elf (int fd, Elf *elf, const char |
1546 | appropriate reference. */ |
1547 | if (unlikely (shdr_info[cnt].shdr.sh_type == SHT_SYMTAB_SHNDX)) |
1548 | { |
1549 | - assert (shdr_info[shdr_info[cnt].shdr.sh_link].symtab_idx == 0); |
1550 | + elf_assert (shdr_info[shdr_info[cnt].shdr.sh_link].symtab_idx == 0); |
1551 | shdr_info[shdr_info[cnt].shdr.sh_link].symtab_idx = cnt; |
1552 | } |
1553 | else if (unlikely (shdr_info[cnt].shdr.sh_type == SHT_GROUP)) |
1554 | @@ -644,7 +652,12 @@ handle_elf (int fd, Elf *elf, const char |
1555 | for (inner = 1; |
1556 | inner < shdr_info[cnt].data->d_size / sizeof (Elf32_Word); |
1557 | ++inner) |
1558 | + { |
1559 | + if (grpref[inner] < shnum) |
1560 | shdr_info[grpref[inner]].group_idx = cnt; |
1561 | + else |
1562 | + goto illformed; |
1563 | + } |
1564 | |
1565 | if (inner == 1 || (inner == 2 && (grpref[0] & GRP_COMDAT) == 0)) |
1566 | /* If the section group contains only one element and this |
1567 | @@ -655,7 +668,7 @@ handle_elf (int fd, Elf *elf, const char |
1568 | } |
1569 | else if (unlikely (shdr_info[cnt].shdr.sh_type == SHT_GNU_versym)) |
1570 | { |
1571 | - assert (shdr_info[shdr_info[cnt].shdr.sh_link].version_idx == 0); |
1572 | + elf_assert (shdr_info[shdr_info[cnt].shdr.sh_link].version_idx == 0); |
1573 | shdr_info[shdr_info[cnt].shdr.sh_link].version_idx = cnt; |
1574 | } |
1575 | |
1576 | @@ -663,7 +676,7 @@ handle_elf (int fd, Elf *elf, const char |
1577 | discarded right away. */ |
1578 | if ((shdr_info[cnt].shdr.sh_flags & SHF_GROUP) != 0) |
1579 | { |
1580 | - assert (shdr_info[cnt].group_idx != 0); |
1581 | + elf_assert (shdr_info[cnt].group_idx != 0); |
1582 | |
1583 | if (shdr_info[shdr_info[cnt].group_idx].idx == 0) |
1584 | { |
1585 | @@ -739,10 +752,14 @@ handle_elf (int fd, Elf *elf, const char |
1586 | { |
1587 | /* If a relocation section is marked as being removed make |
1588 | sure the section it is relocating is removed, too. */ |
1589 | - if ((shdr_info[cnt].shdr.sh_type == SHT_REL |
1590 | + if (shdr_info[cnt].shdr.sh_type == SHT_REL |
1591 | || shdr_info[cnt].shdr.sh_type == SHT_RELA) |
1592 | - && shdr_info[shdr_info[cnt].shdr.sh_info].idx != 0) |
1593 | - shdr_info[cnt].idx = 1; |
1594 | + { |
1595 | + if (shdr_info[cnt].shdr.sh_info >= shnum) |
1596 | + goto illformed; |
1597 | + else if (shdr_info[shdr_info[cnt].shdr.sh_info].idx != 0) |
1598 | + shdr_info[cnt].idx = 1; |
1599 | + } |
1600 | |
1601 | /* If a group section is marked as being removed make |
1602 | sure all the sections it contains are being removed, too. */ |
1603 | @@ -786,7 +803,7 @@ handle_elf (int fd, Elf *elf, const char |
1604 | if (shdr_info[cnt].symtab_idx != 0 |
1605 | && shdr_info[shdr_info[cnt].symtab_idx].data == NULL) |
1606 | { |
1607 | - assert (shdr_info[cnt].shdr.sh_type == SHT_SYMTAB); |
1608 | + elf_assert (shdr_info[cnt].shdr.sh_type == SHT_SYMTAB); |
1609 | |
1610 | shdr_info[shdr_info[cnt].symtab_idx].data |
1611 | = elf_getdata (shdr_info[shdr_info[cnt].symtab_idx].scn, |
1612 | @@ -826,6 +843,9 @@ handle_elf (int fd, Elf *elf, const char |
1613 | else if (scnidx == SHN_XINDEX) |
1614 | scnidx = xndx; |
1615 | |
1616 | + if (scnidx >= shnum) |
1617 | + goto illformed; |
1618 | + |
1619 | if (shdr_info[scnidx].idx == 0) |
1620 | /* This symbol table has a real symbol in |
1621 | a discarded section. So preserve the |
1622 | @@ -856,12 +876,16 @@ handle_elf (int fd, Elf *elf, const char |
1623 | } |
1624 | |
1625 | /* Handle references through sh_info. */ |
1626 | - if (SH_INFO_LINK_P (&shdr_info[cnt].shdr) |
1627 | - && shdr_info[shdr_info[cnt].shdr.sh_info].idx == 0) |
1628 | + if (SH_INFO_LINK_P (&shdr_info[cnt].shdr)) |
1629 | + { |
1630 | + if (shdr_info[cnt].shdr.sh_info >= shnum) |
1631 | + goto illformed; |
1632 | + else if ( shdr_info[shdr_info[cnt].shdr.sh_info].idx == 0) |
1633 | { |
1634 | shdr_info[shdr_info[cnt].shdr.sh_info].idx = 1; |
1635 | changes |= shdr_info[cnt].shdr.sh_info < cnt; |
1636 | } |
1637 | + } |
1638 | |
1639 | /* Mark the section as investigated. */ |
1640 | shdr_info[cnt].idx = 2; |
1641 | @@ -1002,7 +1026,7 @@ handle_elf (int fd, Elf *elf, const char |
1642 | error (EXIT_FAILURE, 0, gettext ("while generating output file: %s"), |
1643 | elf_errmsg (-1)); |
1644 | |
1645 | - assert (elf_ndxscn (shdr_info[cnt].newscn) == shdr_info[cnt].idx); |
1646 | + elf_assert (elf_ndxscn (shdr_info[cnt].newscn) == shdr_info[cnt].idx); |
1647 | |
1648 | /* Add this name to the section header string table. */ |
1649 | shdr_info[cnt].se = ebl_strtabadd (shst, shdr_info[cnt].name, 0); |
1650 | @@ -1039,7 +1063,7 @@ handle_elf (int fd, Elf *elf, const char |
1651 | error (EXIT_FAILURE, 0, |
1652 | gettext ("while create section header section: %s"), |
1653 | elf_errmsg (-1)); |
1654 | - assert (elf_ndxscn (shdr_info[cnt].newscn) == shdr_info[cnt].idx); |
1655 | + elf_assert (elf_ndxscn (shdr_info[cnt].newscn) == shdr_info[cnt].idx); |
1656 | |
1657 | shdr_info[cnt].data = elf_newdata (shdr_info[cnt].newscn); |
1658 | if (shdr_info[cnt].data == NULL) |
1659 | @@ -1095,7 +1119,7 @@ handle_elf (int fd, Elf *elf, const char |
1660 | error (EXIT_FAILURE, 0, |
1661 | gettext ("while create section header section: %s"), |
1662 | elf_errmsg (-1)); |
1663 | - assert (elf_ndxscn (shdr_info[cnt].newscn) == idx); |
1664 | + elf_assert (elf_ndxscn (shdr_info[cnt].newscn) == idx); |
1665 | |
1666 | /* Finalize the string table and fill in the correct indices in the |
1667 | section headers. */ |
1668 | @@ -1185,20 +1209,20 @@ handle_elf (int fd, Elf *elf, const char |
1669 | shndxdata = elf_getdata (shdr_info[shdr_info[cnt].symtab_idx].scn, |
1670 | NULL); |
1671 | |
1672 | - assert ((versiondata->d_size / sizeof (Elf32_Word)) |
1673 | + elf_assert ((versiondata->d_size / sizeof (Elf32_Word)) |
1674 | >= shdr_info[cnt].data->d_size / elsize); |
1675 | } |
1676 | |
1677 | if (shdr_info[cnt].version_idx != 0) |
1678 | { |
1679 | - assert (shdr_info[cnt].shdr.sh_type == SHT_DYNSYM); |
1680 | + elf_assert (shdr_info[cnt].shdr.sh_type == SHT_DYNSYM); |
1681 | /* This section has associated version |
1682 | information. We have to modify that |
1683 | information, too. */ |
1684 | versiondata = elf_getdata (shdr_info[shdr_info[cnt].version_idx].scn, |
1685 | NULL); |
1686 | |
1687 | - assert ((versiondata->d_size / sizeof (GElf_Versym)) |
1688 | + elf_assert ((versiondata->d_size / sizeof (GElf_Versym)) |
1689 | >= shdr_info[cnt].data->d_size / elsize); |
1690 | } |
1691 | |
1692 | @@ -1253,7 +1277,7 @@ handle_elf (int fd, Elf *elf, const char |
1693 | sec = shdr_info[sym->st_shndx].idx; |
1694 | else |
1695 | { |
1696 | - assert (shndxdata != NULL); |
1697 | + elf_assert (shndxdata != NULL); |
1698 | |
1699 | sec = shdr_info[xshndx].idx; |
1700 | } |
1701 | @@ -1274,7 +1298,7 @@ handle_elf (int fd, Elf *elf, const char |
1702 | nxshndx = sec; |
1703 | } |
1704 | |
1705 | - assert (sec < SHN_LORESERVE || shndxdata != NULL); |
1706 | + elf_assert (sec < SHN_LORESERVE || shndxdata != NULL); |
1707 | |
1708 | if ((inner != destidx || nshndx != sym->st_shndx |
1709 | || (shndxdata != NULL && nxshndx != xshndx)) |
1710 | @@ -1301,9 +1325,11 @@ handle_elf (int fd, Elf *elf, const char |
1711 | { |
1712 | size_t sidx = (sym->st_shndx != SHN_XINDEX |
1713 | ? sym->st_shndx : xshndx); |
1714 | - assert (GELF_ST_TYPE (sym->st_info) == STT_SECTION |
1715 | - || (shdr_info[sidx].shdr.sh_type == SHT_GROUP |
1716 | - && shdr_info[sidx].shdr.sh_info == inner)); |
1717 | + elf_assert (GELF_ST_TYPE (sym->st_info) == STT_SECTION |
1718 | + || ((shdr_info[sidx].shdr.sh_type |
1719 | + == SHT_GROUP) |
1720 | + && (shdr_info[sidx].shdr.sh_info |
1721 | + == inner))); |
1722 | } |
1723 | } |
1724 | |
1725 | @@ -1491,11 +1517,11 @@ handle_elf (int fd, Elf *elf, const char |
1726 | { |
1727 | GElf_Sym sym_mem; |
1728 | GElf_Sym *sym = gelf_getsym (symd, inner, &sym_mem); |
1729 | - assert (sym != NULL); |
1730 | + elf_assert (sym != NULL); |
1731 | |
1732 | const char *name = elf_strptr (elf, strshndx, |
1733 | sym->st_name); |
1734 | - assert (name != NULL); |
1735 | + elf_assert (name != NULL); |
1736 | size_t hidx = elf_hash (name) % nbucket; |
1737 | |
1738 | if (bucket[hidx] == 0) |
1739 | @@ -1514,8 +1540,8 @@ handle_elf (int fd, Elf *elf, const char |
1740 | else |
1741 | { |
1742 | /* Alpha and S390 64-bit use 64-bit SHT_HASH entries. */ |
1743 | - assert (shdr_info[cnt].shdr.sh_entsize |
1744 | - == sizeof (Elf64_Xword)); |
1745 | + elf_assert (shdr_info[cnt].shdr.sh_entsize |
1746 | + == sizeof (Elf64_Xword)); |
1747 | |
1748 | Elf64_Xword *bucket = (Elf64_Xword *) hashd->d_buf; |
1749 | |
1750 | @@ -1545,11 +1571,11 @@ handle_elf (int fd, Elf *elf, const char |
1751 | { |
1752 | GElf_Sym sym_mem; |
1753 | GElf_Sym *sym = gelf_getsym (symd, inner, &sym_mem); |
1754 | - assert (sym != NULL); |
1755 | + elf_assert (sym != NULL); |
1756 | |
1757 | const char *name = elf_strptr (elf, strshndx, |
1758 | sym->st_name); |
1759 | - assert (name != NULL); |
1760 | + elf_assert (name != NULL); |
1761 | size_t hidx = elf_hash (name) % nbucket; |
1762 | |
1763 | if (bucket[hidx] == 0) |