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-rw-r--r--meta/recipes-devtools/elfutils/elfutils-0.148/redhat-robustify.diff1707
1 files changed, 1707 insertions, 0 deletions
diff --git a/meta/recipes-devtools/elfutils/elfutils-0.148/redhat-robustify.diff b/meta/recipes-devtools/elfutils/elfutils-0.148/redhat-robustify.diff
new file mode 100644
index 0000000000..a186308f17
--- /dev/null
+++ b/meta/recipes-devtools/elfutils/elfutils-0.148/redhat-robustify.diff
@@ -0,0 +1,1707 @@
1Index: elfutils-0.148/libelf/ChangeLog
2===================================================================
3--- elfutils-0.148.orig/libelf/ChangeLog 2010-07-03 13:07:10.000000000 +0000
4+++ elfutils-0.148/libelf/ChangeLog 2010-07-03 13:07:11.000000000 +0000
5@@ -649,10 +649,53 @@
6 If section content hasn't been read yet, do it before looking for the
7 block size. If no section data present, infer size of section header.
8
9+2005-05-14 Jakub Jelinek <jakub@redhat.com>
10+
11+ * libelfP.h (INVALID_NDX): Define.
12+ * gelf_getdyn.c (gelf_getdyn): Use it. Remove ndx < 0 test if any.
13+ * gelf_getlib.c (gelf_getlib): Likewise.
14+ * gelf_getmove.c (gelf_getmove): Likewise.
15+ * gelf_getrel.c (gelf_getrel): Likewise.
16+ * gelf_getrela.c (gelf_getrela): Likewise.
17+ * gelf_getsym.c (gelf_getsym): Likewise.
18+ * gelf_getsyminfo.c (gelf_getsyminfo): Likewise.
19+ * gelf_getsymshndx.c (gelf_getsymshndx): Likewise.
20+ * gelf_getversym.c (gelf_getversym): Likewise.
21+ * gelf_update_dyn.c (gelf_update_dyn): Likewise.
22+ * gelf_update_lib.c (gelf_update_lib): Likewise.
23+ * gelf_update_move.c (gelf_update_move): Likewise.
24+ * gelf_update_rel.c (gelf_update_rel): Likewise.
25+ * gelf_update_rela.c (gelf_update_rela): Likewise.
26+ * gelf_update_sym.c (gelf_update_sym): Likewise.
27+ * gelf_update_syminfo.c (gelf_update_syminfo): Likewise.
28+ * gelf_update_symshndx.c (gelf_update_symshndx): Likewise.
29+ * gelf_update_versym.c (gelf_update_versym): Likewise.
30+ * elf_newscn.c (elf_newscn): Check for overflow.
31+ * elf32_updatefile.c (__elfw2(LIBELFBITS,updatemmap)): Likewise.
32+ (__elfw2(LIBELFBITS,updatefile)): Likewise.
33+ * elf_begin.c (file_read_elf): Likewise.
34+ * elf32_newphdr.c (elfw2(LIBELFBITS,newphdr)): Likewise.
35+ * elf_getarsym.c (elf_getarsym): Likewise.
36+ * elf32_getshdr.c (elfw2(LIBELFBITS,getshdr)): Likewise.
37 2005-05-11 Ulrich Drepper <drepper@redhat.com>
38
39 * elf.h: Update again.
40
41+2005-05-17 Jakub Jelinek <jakub@redhat.com>
42+
43+ * elf32_getphdr.c (elfw2(LIBELFBITS,getphdr)): Check if program header
44+ table fits into object's bounds.
45+ * elf_getshstrndx.c (elf_getshstrndx): Add elf->start_offset to
46+ elf->map_address. Check if first section header fits into object's
47+ bounds.
48+ * elf32_getshdr.c (elfw2(LIBELFBITS,getshdr)):
49+ Check if section header table fits into object's bounds.
50+ * elf_begin.c (get_shnum): Ensure section headers fits into
51+ object's bounds.
52+ (file_read_elf): Make sure scncnt is small enough to allocate both
53+ ElfXX_Shdr and Elf_Scn array. Make sure section and program header
54+ tables fit into object's bounds. Avoid memory leak on failure.
55+
56 2005-05-09 Ulrich Drepper <drepper@redhat.com>
57
58 * elf.h: Update from glibc.
59Index: elfutils-0.148/libelf/elf32_getphdr.c
60===================================================================
61--- elfutils-0.148.orig/libelf/elf32_getphdr.c 2010-04-21 14:26:40.000000000 +0000
62+++ elfutils-0.148/libelf/elf32_getphdr.c 2010-07-03 13:07:11.000000000 +0000
63@@ -114,6 +114,16 @@
64
65 if (elf->map_address != NULL)
66 {
67+ /* First see whether the information in the ELF header is
68+ valid and it does not ask for too much. */
69+ if (unlikely (ehdr->e_phoff >= elf->maximum_size)
70+ || unlikely (elf->maximum_size - ehdr->e_phoff < size))
71+ {
72+ /* Something is wrong. */
73+ __libelf_seterrno (ELF_E_INVALID_PHDR);
74+ goto out;
75+ }
76+
77 /* All the data is already mapped. Use it. */
78 void *file_phdr = ((char *) elf->map_address
79 + elf->start_offset + ehdr->e_phoff);
80Index: elfutils-0.148/libelf/elf32_getshdr.c
81===================================================================
82--- elfutils-0.148.orig/libelf/elf32_getshdr.c 2009-06-13 22:41:42.000000000 +0000
83+++ elfutils-0.148/libelf/elf32_getshdr.c 2010-07-03 13:07:11.000000000 +0000
84@@ -1,5 +1,5 @@
85 /* Return section header.
86- Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005, 2007, 2009 Red Hat, Inc.
87+ Copyright (C) 1998-2009 Red Hat, Inc.
88 This file is part of Red Hat elfutils.
89 Written by Ulrich Drepper <drepper@redhat.com>, 1998.
90
91@@ -81,7 +81,8 @@
92 goto out;
93
94 size_t shnum;
95- if (__elf_getshdrnum_rdlock (elf, &shnum) != 0)
96+ if (__elf_getshdrnum_rdlock (elf, &shnum) != 0
97+ || shnum > SIZE_MAX / sizeof (ElfW2(LIBELFBITS,Shdr)))
98 goto out;
99 size_t size = shnum * sizeof (ElfW2(LIBELFBITS,Shdr));
100
101@@ -98,6 +99,16 @@
102
103 if (elf->map_address != NULL)
104 {
105+ /* First see whether the information in the ELF header is
106+ valid and it does not ask for too much. */
107+ if (unlikely (ehdr->e_shoff >= elf->maximum_size)
108+ || unlikely (elf->maximum_size - ehdr->e_shoff < size))
109+ {
110+ /* Something is wrong. */
111+ __libelf_seterrno (ELF_E_INVALID_SECTION_HEADER);
112+ goto free_and_out;
113+ }
114+
115 ElfW2(LIBELFBITS,Shdr) *notcvt;
116
117 /* All the data is already mapped. If we could use it
118Index: elfutils-0.148/libelf/elf32_newphdr.c
119===================================================================
120--- elfutils-0.148.orig/libelf/elf32_newphdr.c 2010-01-12 16:57:54.000000000 +0000
121+++ elfutils-0.148/libelf/elf32_newphdr.c 2010-07-03 13:07:11.000000000 +0000
122@@ -135,6 +135,12 @@
123 || count == PN_XNUM
124 || elf->state.ELFW(elf,LIBELFBITS).phdr == NULL)
125 {
126+ if (unlikely (count > SIZE_MAX / sizeof (ElfW2(LIBELFBITS,Phdr))))
127+ {
128+ result = NULL;
129+ goto out;
130+ }
131+
132 /* Allocate a new program header with the appropriate number of
133 elements. */
134 result = (ElfW2(LIBELFBITS,Phdr) *)
135Index: elfutils-0.148/libelf/elf32_updatefile.c
136===================================================================
137--- elfutils-0.148.orig/libelf/elf32_updatefile.c 2010-01-12 16:57:54.000000000 +0000
138+++ elfutils-0.148/libelf/elf32_updatefile.c 2010-07-03 13:07:11.000000000 +0000
139@@ -223,6 +223,9 @@
140 /* Write all the sections. Well, only those which are modified. */
141 if (shnum > 0)
142 {
143+ if (unlikely (shnum > SIZE_MAX / sizeof (Elf_Scn *)))
144+ return 1;
145+
146 Elf_ScnList *list = &elf->state.ELFW(elf,LIBELFBITS).scns;
147 Elf_Scn **scns = (Elf_Scn **) alloca (shnum * sizeof (Elf_Scn *));
148 char *const shdr_start = ((char *) elf->map_address + elf->start_offset
149@@ -645,6 +648,10 @@
150 /* Write all the sections. Well, only those which are modified. */
151 if (shnum > 0)
152 {
153+ if (unlikely (shnum > SIZE_MAX / (sizeof (Elf_Scn *)
154+ + sizeof (ElfW2(LIBELFBITS,Shdr)))))
155+ return 1;
156+
157 off_t shdr_offset = elf->start_offset + ehdr->e_shoff;
158 #if EV_NUM != 2
159 xfct_t shdr_fctp = __elf_xfctstom[__libelf_version - 1][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_SHDR];
160Index: elfutils-0.148/libelf/elf_begin.c
161===================================================================
162--- elfutils-0.148.orig/libelf/elf_begin.c 2010-04-21 14:26:40.000000000 +0000
163+++ elfutils-0.148/libelf/elf_begin.c 2010-07-03 13:07:11.000000000 +0000
164@@ -165,7 +165,8 @@
165
166 if (unlikely (result == 0) && ehdr.e32->e_shoff != 0)
167 {
168- if (ehdr.e32->e_shoff + sizeof (Elf32_Shdr) > maxsize)
169+ if (unlikely (ehdr.e32->e_shoff >= maxsize)
170+ || unlikely (maxsize - ehdr.e32->e_shoff < sizeof (Elf32_Shdr)))
171 /* Cannot read the first section header. */
172 return 0;
173
174@@ -213,7 +214,8 @@
175
176 if (unlikely (result == 0) && ehdr.e64->e_shoff != 0)
177 {
178- if (ehdr.e64->e_shoff + sizeof (Elf64_Shdr) > maxsize)
179+ if (unlikely (ehdr.e64->e_shoff >= maxsize)
180+ || unlikely (ehdr.e64->e_shoff + sizeof (Elf64_Shdr) > maxsize))
181 /* Cannot read the first section header. */
182 return 0;
183
184@@ -285,6 +287,15 @@
185 /* Could not determine the number of sections. */
186 return NULL;
187
188+ /* Check for too many sections. */
189+ if (e_ident[EI_CLASS] == ELFCLASS32)
190+ {
191+ if (scncnt > SIZE_MAX / (sizeof (Elf_Scn) + sizeof (Elf32_Shdr)))
192+ return NULL;
193+ }
194+ else if (scncnt > SIZE_MAX / (sizeof (Elf_Scn) + sizeof (Elf64_Shdr)))
195+ return NULL;
196+
197 /* We can now allocate the memory. Even if there are no section headers,
198 we allocate space for a zeroth section in case we need it later. */
199 const size_t scnmax = (scncnt ?: (cmd == ELF_C_RDWR || cmd == ELF_C_RDWR_MMAP)
200@@ -324,6 +335,16 @@
201 {
202 /* We can use the mmapped memory. */
203 elf->state.elf32.ehdr = ehdr;
204+
205+ if (unlikely (ehdr->e_shoff >= maxsize)
206+ || unlikely (maxsize - ehdr->e_shoff
207+ < scncnt * sizeof (Elf32_Shdr)))
208+ {
209+ free_and_out:
210+ free (elf);
211+ __libelf_seterrno (ELF_E_INVALID_FILE);
212+ return NULL;
213+ }
214 elf->state.elf32.shdr
215 = (Elf32_Shdr *) ((char *) ehdr + ehdr->e_shoff);
216
217@@ -410,6 +431,11 @@
218 {
219 /* We can use the mmapped memory. */
220 elf->state.elf64.ehdr = ehdr;
221+
222+ if (unlikely (ehdr->e_shoff >= maxsize)
223+ || unlikely (ehdr->e_shoff
224+ + scncnt * sizeof (Elf32_Shdr) > maxsize))
225+ goto free_and_out;
226 elf->state.elf64.shdr
227 = (Elf64_Shdr *) ((char *) ehdr + ehdr->e_shoff);
228
229Index: elfutils-0.148/libelf/elf_getarsym.c
230===================================================================
231--- elfutils-0.148.orig/libelf/elf_getarsym.c 2009-01-08 20:56:37.000000000 +0000
232+++ elfutils-0.148/libelf/elf_getarsym.c 2010-07-03 13:07:11.000000000 +0000
233@@ -179,6 +179,9 @@
234 size_t index_size = atol (tmpbuf);
235
236 if (SARMAG + sizeof (struct ar_hdr) + index_size > elf->maximum_size
237+#if SIZE_MAX <= 4294967295U
238+ || n >= SIZE_MAX / sizeof (Elf_Arsym)
239+#endif
240 || n * sizeof (uint32_t) > index_size)
241 {
242 /* This index table cannot be right since it does not fit into
243Index: elfutils-0.148/libelf/elf_getshdrstrndx.c
244===================================================================
245--- elfutils-0.148.orig/libelf/elf_getshdrstrndx.c 2009-06-13 22:31:35.000000000 +0000
246+++ elfutils-0.148/libelf/elf_getshdrstrndx.c 2010-07-03 13:07:11.000000000 +0000
247@@ -125,10 +125,25 @@
248 if (elf->map_address != NULL
249 && elf->state.elf32.ehdr->e_ident[EI_DATA] == MY_ELFDATA
250 && (ALLOW_UNALIGNED
251- || (((size_t) ((char *) elf->map_address + offset))
252+ || (((size_t) ((char *) elf->map_address
253+ + elf->start_offset + offset))
254 & (__alignof__ (Elf32_Shdr) - 1)) == 0))
255- /* We can directly access the memory. */
256- num = ((Elf32_Shdr *) (elf->map_address + offset))->sh_link;
257+ {
258+ /* First see whether the information in the ELF header is
259+ valid and it does not ask for too much. */
260+ if (unlikely (elf->maximum_size - offset
261+ < sizeof (Elf32_Shdr)))
262+ {
263+ /* Something is wrong. */
264+ __libelf_seterrno (ELF_E_INVALID_SECTION_HEADER);
265+ result = -1;
266+ goto out;
267+ }
268+
269+ /* We can directly access the memory. */
270+ num = ((Elf32_Shdr *) (elf->map_address + elf->start_offset
271+ + offset))->sh_link;
272+ }
273 else
274 {
275 /* We avoid reading in all the section headers. Just read
276@@ -163,10 +178,25 @@
277 if (elf->map_address != NULL
278 && elf->state.elf64.ehdr->e_ident[EI_DATA] == MY_ELFDATA
279 && (ALLOW_UNALIGNED
280- || (((size_t) ((char *) elf->map_address + offset))
281+ || (((size_t) ((char *) elf->map_address
282+ + elf->start_offset + offset))
283 & (__alignof__ (Elf64_Shdr) - 1)) == 0))
284- /* We can directly access the memory. */
285- num = ((Elf64_Shdr *) (elf->map_address + offset))->sh_link;
286+ {
287+ /* First see whether the information in the ELF header is
288+ valid and it does not ask for too much. */
289+ if (unlikely (elf->maximum_size - offset
290+ < sizeof (Elf64_Shdr)))
291+ {
292+ /* Something is wrong. */
293+ __libelf_seterrno (ELF_E_INVALID_SECTION_HEADER);
294+ result = -1;
295+ goto out;
296+ }
297+
298+ /* We can directly access the memory. */
299+ num = ((Elf64_Shdr *) (elf->map_address + elf->start_offset
300+ + offset))->sh_link;
301+ }
302 else
303 {
304 /* We avoid reading in all the section headers. Just read
305Index: elfutils-0.148/libelf/elf_newscn.c
306===================================================================
307--- elfutils-0.148.orig/libelf/elf_newscn.c 2009-01-08 20:56:37.000000000 +0000
308+++ elfutils-0.148/libelf/elf_newscn.c 2010-07-03 13:07:11.000000000 +0000
309@@ -104,10 +104,18 @@
310 else
311 {
312 /* We must allocate a new element. */
313- Elf_ScnList *newp;
314+ Elf_ScnList *newp = NULL;
315
316 assert (elf->state.elf.scnincr > 0);
317
318+ if (
319+#if SIZE_MAX <= 4294967295U
320+ likely (elf->state.elf.scnincr
321+ < SIZE_MAX / 2 / sizeof (Elf_Scn) - sizeof (Elf_ScnList))
322+#else
323+ 1
324+#endif
325+ )
326 newp = (Elf_ScnList *) calloc (sizeof (Elf_ScnList)
327 + ((elf->state.elf.scnincr *= 2)
328 * sizeof (Elf_Scn)), 1);
329Index: elfutils-0.148/libelf/gelf_getdyn.c
330===================================================================
331--- elfutils-0.148.orig/libelf/gelf_getdyn.c 2009-01-08 20:56:37.000000000 +0000
332+++ elfutils-0.148/libelf/gelf_getdyn.c 2010-07-03 13:07:11.000000000 +0000
333@@ -1,5 +1,5 @@
334 /* Get information from dynamic table at the given index.
335- Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
336+ Copyright (C) 2000-2009 Red Hat, Inc.
337 This file is part of Red Hat elfutils.
338 Written by Ulrich Drepper <drepper@redhat.com>, 2000.
339
340@@ -93,7 +93,7 @@
341 table entries has to be adopted. The user better has provided
342 a buffer where we can store the information. While copying the
343 data we are converting the format. */
344- if (unlikely ((ndx + 1) * sizeof (Elf32_Dyn) > data_scn->d.d_size))
345+ if (INVALID_NDX (ndx, Elf32_Dyn, &data_scn->d))
346 {
347 __libelf_seterrno (ELF_E_INVALID_INDEX);
348 goto out;
349@@ -114,7 +114,7 @@
350
351 /* The data is already in the correct form. Just make sure the
352 index is OK. */
353- if (unlikely ((ndx + 1) * sizeof (GElf_Dyn) > data_scn->d.d_size))
354+ if (INVALID_NDX (ndx, GElf_Dyn, &data_scn->d))
355 {
356 __libelf_seterrno (ELF_E_INVALID_INDEX);
357 goto out;
358Index: elfutils-0.148/libelf/gelf_getlib.c
359===================================================================
360--- elfutils-0.148.orig/libelf/gelf_getlib.c 2009-01-08 20:56:37.000000000 +0000
361+++ elfutils-0.148/libelf/gelf_getlib.c 2010-07-03 13:07:11.000000000 +0000
362@@ -1,5 +1,5 @@
363 /* Get library from table at the given index.
364- Copyright (C) 2004 Red Hat, Inc.
365+ Copyright (C) 2004-2009 Red Hat, Inc.
366 This file is part of Red Hat elfutils.
367 Written by Ulrich Drepper <drepper@redhat.com>, 2004.
368
369@@ -86,7 +86,7 @@
370 /* The data is already in the correct form. Just make sure the
371 index is OK. */
372 GElf_Lib *result = NULL;
373- if (unlikely ((ndx + 1) * sizeof (GElf_Lib) > data->d_size))
374+ if (INVALID_NDX (ndx, GElf_Lib, data))
375 __libelf_seterrno (ELF_E_INVALID_INDEX);
376 else
377 {
378Index: elfutils-0.148/libelf/gelf_getmove.c
379===================================================================
380--- elfutils-0.148.orig/libelf/gelf_getmove.c 2009-01-08 20:56:37.000000000 +0000
381+++ elfutils-0.148/libelf/gelf_getmove.c 2010-07-03 13:07:11.000000000 +0000
382@@ -1,5 +1,5 @@
383 /* Get move structure at the given index.
384- Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
385+ Copyright (C) 2000-2009 Red Hat, Inc.
386 This file is part of Red Hat elfutils.
387 Written by Ulrich Drepper <drepper@redhat.com>, 2000.
388
389@@ -83,7 +83,7 @@
390
391 /* The data is already in the correct form. Just make sure the
392 index is OK. */
393- if (unlikely ((ndx + 1) * sizeof (GElf_Move) > data->d_size))
394+ if (INVALID_NDX (ndx, GElf_Move, data))
395 {
396 __libelf_seterrno (ELF_E_INVALID_INDEX);
397 goto out;
398Index: elfutils-0.148/libelf/gelf_getrela.c
399===================================================================
400--- elfutils-0.148.orig/libelf/gelf_getrela.c 2009-01-08 20:56:37.000000000 +0000
401+++ elfutils-0.148/libelf/gelf_getrela.c 2010-07-03 13:07:11.000000000 +0000
402@@ -1,5 +1,5 @@
403 /* Get RELA relocation information at 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@@ -71,12 +71,6 @@
410 if (data_scn == NULL)
411 return NULL;
412
413- if (unlikely (ndx < 0))
414- {
415- __libelf_seterrno (ELF_E_INVALID_INDEX);
416- return NULL;
417- }
418-
419 if (unlikely (data_scn->d.d_type != ELF_T_RELA))
420 {
421 __libelf_seterrno (ELF_E_INVALID_HANDLE);
422@@ -93,7 +87,7 @@
423 if (scn->elf->class == ELFCLASS32)
424 {
425 /* We have to convert the data. */
426- if (unlikely ((ndx + 1) * sizeof (Elf32_Rela) > data_scn->d.d_size))
427+ if (INVALID_NDX (ndx, Elf32_Rela, &data_scn->d))
428 {
429 __libelf_seterrno (ELF_E_INVALID_INDEX);
430 result = NULL;
431@@ -114,7 +108,7 @@
432 {
433 /* Simply copy the data after we made sure we are actually getting
434 correct data. */
435- if (unlikely ((ndx + 1) * sizeof (Elf64_Rela) > data_scn->d.d_size))
436+ if (INVALID_NDX (ndx, Elf64_Rela, &data_scn->d))
437 {
438 __libelf_seterrno (ELF_E_INVALID_INDEX);
439 result = NULL;
440Index: elfutils-0.148/libelf/gelf_getrel.c
441===================================================================
442--- elfutils-0.148.orig/libelf/gelf_getrel.c 2009-01-08 20:56:37.000000000 +0000
443+++ elfutils-0.148/libelf/gelf_getrel.c 2010-07-03 13:07:11.000000000 +0000
444@@ -1,5 +1,5 @@
445 /* Get REL relocation information at given index.
446- Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
447+ Copyright (C) 2000-2009 Red Hat, Inc.
448 This file is part of Red Hat elfutils.
449 Written by Ulrich Drepper <drepper@redhat.com>, 2000.
450
451@@ -71,12 +71,6 @@
452 if (data_scn == NULL)
453 return NULL;
454
455- if (unlikely (ndx < 0))
456- {
457- __libelf_seterrno (ELF_E_INVALID_INDEX);
458- return NULL;
459- }
460-
461 if (unlikely (data_scn->d.d_type != ELF_T_REL))
462 {
463 __libelf_seterrno (ELF_E_INVALID_HANDLE);
464@@ -93,7 +87,7 @@
465 if (scn->elf->class == ELFCLASS32)
466 {
467 /* We have to convert the data. */
468- if (unlikely ((ndx + 1) * sizeof (Elf32_Rel) > data_scn->d.d_size))
469+ if (INVALID_NDX (ndx, Elf32_Rel, &data_scn->d))
470 {
471 __libelf_seterrno (ELF_E_INVALID_INDEX);
472 result = NULL;
473@@ -113,7 +107,7 @@
474 {
475 /* Simply copy the data after we made sure we are actually getting
476 correct data. */
477- if (unlikely ((ndx + 1) * sizeof (Elf64_Rel) > data_scn->d.d_size))
478+ if (INVALID_NDX (ndx, Elf64_Rel, &data_scn->d))
479 {
480 __libelf_seterrno (ELF_E_INVALID_INDEX);
481 result = NULL;
482Index: elfutils-0.148/libelf/gelf_getsym.c
483===================================================================
484--- elfutils-0.148.orig/libelf/gelf_getsym.c 2009-01-08 20:56:37.000000000 +0000
485+++ elfutils-0.148/libelf/gelf_getsym.c 2010-07-03 13:07:11.000000000 +0000
486@@ -1,5 +1,5 @@
487 /* Get symbol information from symbol table at the given index.
488- Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc.
489+ Copyright (C) 1999-2009 Red Hat, Inc.
490 This file is part of Red Hat elfutils.
491 Written by Ulrich Drepper <drepper@redhat.com>, 1999.
492
493@@ -90,7 +90,7 @@
494 table entries has to be adopted. The user better has provided
495 a buffer where we can store the information. While copying the
496 data we are converting the format. */
497- if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > data->d_size))
498+ if (INVALID_NDX (ndx, Elf32_Sym, data))
499 {
500 __libelf_seterrno (ELF_E_INVALID_INDEX);
501 goto out;
502@@ -119,7 +119,7 @@
503
504 /* The data is already in the correct form. Just make sure the
505 index is OK. */
506- if (unlikely ((ndx + 1) * sizeof (GElf_Sym) > data->d_size))
507+ if (INVALID_NDX (ndx, GElf_Sym, data))
508 {
509 __libelf_seterrno (ELF_E_INVALID_INDEX);
510 goto out;
511Index: elfutils-0.148/libelf/gelf_getsyminfo.c
512===================================================================
513--- elfutils-0.148.orig/libelf/gelf_getsyminfo.c 2009-01-08 20:56:37.000000000 +0000
514+++ elfutils-0.148/libelf/gelf_getsyminfo.c 2010-07-03 13:07:11.000000000 +0000
515@@ -1,5 +1,5 @@
516 /* Get additional symbol information from symbol table at the given index.
517- Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
518+ Copyright (C) 2000-2009 Red Hat, Inc.
519 This file is part of Red Hat elfutils.
520 Written by Ulrich Drepper <drepper@redhat.com>, 2000.
521
522@@ -84,7 +84,7 @@
523
524 /* The data is already in the correct form. Just make sure the
525 index is OK. */
526- if (unlikely ((ndx + 1) * sizeof (GElf_Syminfo) > data->d_size))
527+ if (INVALID_NDX (ndx, GElf_Syminfo, data))
528 {
529 __libelf_seterrno (ELF_E_INVALID_INDEX);
530 goto out;
531Index: elfutils-0.148/libelf/gelf_getsymshndx.c
532===================================================================
533--- elfutils-0.148.orig/libelf/gelf_getsymshndx.c 2009-01-08 20:56:37.000000000 +0000
534+++ elfutils-0.148/libelf/gelf_getsymshndx.c 2010-07-03 13:07:11.000000000 +0000
535@@ -1,6 +1,6 @@
536 /* Get symbol information and separate section index from symbol table
537 at the given index.
538- Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
539+ Copyright (C) 2000-2009 Red Hat, Inc.
540 This file is part of Red Hat elfutils.
541 Written by Ulrich Drepper <drepper@redhat.com>, 2000.
542
543@@ -90,7 +90,7 @@
544 section index table. */
545 if (likely (shndxdata_scn != NULL))
546 {
547- if (unlikely ((ndx + 1) * sizeof (Elf32_Word) > shndxdata_scn->d.d_size))
548+ if (INVALID_NDX (ndx, Elf32_Word, &shndxdata_scn->d))
549 {
550 __libelf_seterrno (ELF_E_INVALID_INDEX);
551 goto out;
552@@ -110,7 +110,7 @@
553 table entries has to be adopted. The user better has provided
554 a buffer where we can store the information. While copying the
555 data we are converting the format. */
556- if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > symdata->d_size))
557+ if (INVALID_NDX (ndx, Elf32_Sym, symdata))
558 {
559 __libelf_seterrno (ELF_E_INVALID_INDEX);
560 goto out;
561@@ -139,7 +139,7 @@
562
563 /* The data is already in the correct form. Just make sure the
564 index is OK. */
565- if (unlikely ((ndx + 1) * sizeof (GElf_Sym) > symdata->d_size))
566+ if (INVALID_NDX (ndx, GElf_Sym, symdata))
567 {
568 __libelf_seterrno (ELF_E_INVALID_INDEX);
569 goto out;
570Index: elfutils-0.148/libelf/gelf_getversym.c
571===================================================================
572--- elfutils-0.148.orig/libelf/gelf_getversym.c 2009-01-08 20:56:37.000000000 +0000
573+++ elfutils-0.148/libelf/gelf_getversym.c 2010-07-03 13:07:11.000000000 +0000
574@@ -1,5 +1,5 @@
575 /* Get symbol version information at the given index.
576- Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc.
577+ Copyright (C) 1999-2009 Red Hat, Inc.
578 This file is part of Red Hat elfutils.
579 Written by Ulrich Drepper <drepper@redhat.com>, 1999.
580
581@@ -92,7 +92,7 @@
582
583 /* The data is already in the correct form. Just make sure the
584 index is OK. */
585- if (unlikely ((ndx + 1) * sizeof (GElf_Versym) > data->d_size))
586+ if (INVALID_NDX (ndx, GElf_Versym, data))
587 {
588 __libelf_seterrno (ELF_E_INVALID_INDEX);
589 result = NULL;
590Index: elfutils-0.148/libelf/gelf_update_dyn.c
591===================================================================
592--- elfutils-0.148.orig/libelf/gelf_update_dyn.c 2009-01-08 20:56:37.000000000 +0000
593+++ elfutils-0.148/libelf/gelf_update_dyn.c 2010-07-03 13:07:11.000000000 +0000
594@@ -1,5 +1,5 @@
595 /* Update information in dynamic table at the given index.
596- Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
597+ Copyright (C) 2000-2009 Red Hat, Inc.
598 This file is part of Red Hat elfutils.
599 Written by Ulrich Drepper <drepper@redhat.com>, 2000.
600
601@@ -71,12 +71,6 @@
602 if (data == NULL)
603 return 0;
604
605- if (unlikely (ndx < 0))
606- {
607- __libelf_seterrno (ELF_E_INVALID_INDEX);
608- return 0;
609- }
610-
611 if (unlikely (data_scn->d.d_type != ELF_T_DYN))
612 {
613 /* The type of the data better should match. */
614@@ -102,7 +96,7 @@
615 }
616
617 /* Check whether we have to resize the data buffer. */
618- if (unlikely ((ndx + 1) * sizeof (Elf32_Dyn) > data_scn->d.d_size))
619+ if (INVALID_NDX (ndx, Elf32_Dyn, &data_scn->d))
620 {
621 __libelf_seterrno (ELF_E_INVALID_INDEX);
622 goto out;
623@@ -116,7 +110,7 @@
624 else
625 {
626 /* Check whether we have to resize the data buffer. */
627- if (unlikely ((ndx + 1) * sizeof (Elf64_Dyn) > data_scn->d.d_size))
628+ if (INVALID_NDX (ndx, Elf64_Dyn, &data_scn->d))
629 {
630 __libelf_seterrno (ELF_E_INVALID_INDEX);
631 goto out;
632Index: elfutils-0.148/libelf/gelf_update_lib.c
633===================================================================
634--- elfutils-0.148.orig/libelf/gelf_update_lib.c 2009-01-08 20:56:37.000000000 +0000
635+++ elfutils-0.148/libelf/gelf_update_lib.c 2010-07-03 13:07:11.000000000 +0000
636@@ -1,5 +1,5 @@
637 /* Update library in table at the given index.
638- Copyright (C) 2004 Red Hat, Inc.
639+ Copyright (C) 2004-2009 Red Hat, Inc.
640 This file is part of Red Hat elfutils.
641 Written by Ulrich Drepper <drepper@redhat.com>, 2004.
642
643@@ -68,12 +68,6 @@
644 if (data == NULL)
645 return 0;
646
647- if (unlikely (ndx < 0))
648- {
649- __libelf_seterrno (ELF_E_INVALID_INDEX);
650- return 0;
651- }
652-
653 Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data;
654 if (unlikely (data_scn->d.d_type != ELF_T_LIB))
655 {
656@@ -87,7 +81,7 @@
657
658 /* Check whether we have to resize the data buffer. */
659 int result = 0;
660- if (unlikely ((ndx + 1) * sizeof (Elf64_Lib) > data_scn->d.d_size))
661+ if (INVALID_NDX (ndx, Elf64_Lib, &data_scn->d))
662 __libelf_seterrno (ELF_E_INVALID_INDEX);
663 else
664 {
665Index: elfutils-0.148/libelf/gelf_update_move.c
666===================================================================
667--- elfutils-0.148.orig/libelf/gelf_update_move.c 2009-01-08 20:56:37.000000000 +0000
668+++ elfutils-0.148/libelf/gelf_update_move.c 2010-07-03 13:07:11.000000000 +0000
669@@ -1,5 +1,5 @@
670 /* Update move structure at the given index.
671- Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
672+ Copyright (C) 2000-2009 Red Hat, Inc.
673 This file is part of Red Hat elfutils.
674 Written by Ulrich Drepper <drepper@redhat.com>, 2000.
675
676@@ -75,8 +75,7 @@
677 assert (sizeof (GElf_Move) == sizeof (Elf64_Move));
678
679 /* Check whether we have to resize the data buffer. */
680- if (unlikely (ndx < 0)
681- || unlikely ((ndx + 1) * sizeof (GElf_Move) > data_scn->d.d_size))
682+ if (INVALID_NDX (ndx, GElf_Move, &data_scn->d))
683 {
684 __libelf_seterrno (ELF_E_INVALID_INDEX);
685 return 0;
686Index: elfutils-0.148/libelf/gelf_update_rela.c
687===================================================================
688--- elfutils-0.148.orig/libelf/gelf_update_rela.c 2009-01-08 20:56:37.000000000 +0000
689+++ elfutils-0.148/libelf/gelf_update_rela.c 2010-07-03 13:07:11.000000000 +0000
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 @@
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 @@
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 @@
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;
728Index: elfutils-0.148/libelf/gelf_update_rel.c
729===================================================================
730--- elfutils-0.148.orig/libelf/gelf_update_rel.c 2009-01-08 20:56:37.000000000 +0000
731+++ elfutils-0.148/libelf/gelf_update_rel.c 2010-07-03 13:07:11.000000000 +0000
732@@ -1,5 +1,5 @@
733 /* Update REL relocation information at given index.
734- Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
735+ Copyright (C) 2000-2009 Red Hat, Inc.
736 This file is part of Red Hat elfutils.
737 Written by Ulrich Drepper <drepper@redhat.com>, 2000.
738
739@@ -68,12 +68,6 @@
740 if (dst == NULL)
741 return 0;
742
743- if (unlikely (ndx < 0))
744- {
745- __libelf_seterrno (ELF_E_INVALID_INDEX);
746- return 0;
747- }
748-
749 if (unlikely (data_scn->d.d_type != ELF_T_REL))
750 {
751 /* The type of the data better should match. */
752@@ -99,7 +93,7 @@
753 }
754
755 /* Check whether we have to resize the data buffer. */
756- if (unlikely ((ndx + 1) * sizeof (Elf32_Rel) > data_scn->d.d_size))
757+ if (INVALID_NDX (ndx, Elf32_Rel, &data_scn->d))
758 {
759 __libelf_seterrno (ELF_E_INVALID_INDEX);
760 goto out;
761@@ -114,7 +108,7 @@
762 else
763 {
764 /* Check whether we have to resize the data buffer. */
765- if (unlikely ((ndx + 1) * sizeof (Elf64_Rel) > data_scn->d.d_size))
766+ if (INVALID_NDX (ndx, Elf64_Rel, &data_scn->d))
767 {
768 __libelf_seterrno (ELF_E_INVALID_INDEX);
769 goto out;
770Index: elfutils-0.148/libelf/gelf_update_sym.c
771===================================================================
772--- elfutils-0.148.orig/libelf/gelf_update_sym.c 2009-01-08 20:56:37.000000000 +0000
773+++ elfutils-0.148/libelf/gelf_update_sym.c 2010-07-03 13:07:11.000000000 +0000
774@@ -1,5 +1,5 @@
775 /* Update symbol information in symbol table at the given index.
776- Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
777+ Copyright (C) 2000-2009 Red Hat, Inc.
778 This file is part of Red Hat elfutils.
779 Written by Ulrich Drepper <drepper@redhat.com>, 2000.
780
781@@ -72,12 +72,6 @@
782 if (data == NULL)
783 return 0;
784
785- if (unlikely (ndx < 0))
786- {
787- __libelf_seterrno (ELF_E_INVALID_INDEX);
788- return 0;
789- }
790-
791 if (unlikely (data_scn->d.d_type != ELF_T_SYM))
792 {
793 /* The type of the data better should match. */
794@@ -102,7 +96,7 @@
795 }
796
797 /* Check whether we have to resize the data buffer. */
798- if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > data_scn->d.d_size))
799+ if (INVALID_NDX (ndx, Elf32_Sym, &data_scn->d))
800 {
801 __libelf_seterrno (ELF_E_INVALID_INDEX);
802 goto out;
803@@ -125,7 +119,7 @@
804 else
805 {
806 /* Check whether we have to resize the data buffer. */
807- if (unlikely ((ndx + 1) * sizeof (Elf64_Sym) > data_scn->d.d_size))
808+ if (INVALID_NDX (ndx, Elf64_Sym, &data_scn->d))
809 {
810 __libelf_seterrno (ELF_E_INVALID_INDEX);
811 goto out;
812Index: elfutils-0.148/libelf/gelf_update_syminfo.c
813===================================================================
814--- elfutils-0.148.orig/libelf/gelf_update_syminfo.c 2009-01-08 20:56:37.000000000 +0000
815+++ elfutils-0.148/libelf/gelf_update_syminfo.c 2010-07-03 13:07:11.000000000 +0000
816@@ -1,5 +1,5 @@
817 /* Update additional symbol information in symbol table at the given index.
818- Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
819+ Copyright (C) 2000-2009 Red Hat, Inc.
820 This file is part of Red Hat elfutils.
821 Written by Ulrich Drepper <drepper@redhat.com>, 2000.
822
823@@ -72,12 +72,6 @@
824 if (data == NULL)
825 return 0;
826
827- if (unlikely (ndx < 0))
828- {
829- __libelf_seterrno (ELF_E_INVALID_INDEX);
830- return 0;
831- }
832-
833 if (unlikely (data_scn->d.d_type != ELF_T_SYMINFO))
834 {
835 /* The type of the data better should match. */
836@@ -93,7 +87,7 @@
837 rwlock_wrlock (scn->elf->lock);
838
839 /* Check whether we have to resize the data buffer. */
840- if (unlikely ((ndx + 1) * sizeof (GElf_Syminfo) > data_scn->d.d_size))
841+ if (INVALID_NDX (ndx, GElf_Syminfo, &data_scn->d))
842 {
843 __libelf_seterrno (ELF_E_INVALID_INDEX);
844 goto out;
845Index: elfutils-0.148/libelf/gelf_update_symshndx.c
846===================================================================
847--- elfutils-0.148.orig/libelf/gelf_update_symshndx.c 2009-01-08 20:56:37.000000000 +0000
848+++ elfutils-0.148/libelf/gelf_update_symshndx.c 2010-07-03 13:07:11.000000000 +0000
849@@ -1,6 +1,6 @@
850 /* Update symbol information and section index in symbol table at the
851 given index.
852- Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
853+ Copyright (C) 2000-2009 Red Hat, Inc.
854 This file is part of Red Hat elfutils.
855 Written by Ulrich Drepper <drepper@redhat.com>, 2000.
856
857@@ -77,12 +77,6 @@
858 if (symdata == NULL)
859 return 0;
860
861- if (unlikely (ndx < 0))
862- {
863- __libelf_seterrno (ELF_E_INVALID_INDEX);
864- return 0;
865- }
866-
867 if (unlikely (symdata_scn->d.d_type != ELF_T_SYM))
868 {
869 /* The type of the data better should match. */
870@@ -128,7 +122,7 @@
871 }
872
873 /* Check whether we have to resize the data buffer. */
874- if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > symdata_scn->d.d_size))
875+ if (INVALID_NDX (ndx, Elf32_Sym, &symdata_scn->d))
876 {
877 __libelf_seterrno (ELF_E_INVALID_INDEX);
878 goto out;
879@@ -151,7 +145,7 @@
880 else
881 {
882 /* Check whether we have to resize the data buffer. */
883- if (unlikely ((ndx + 1) * sizeof (Elf64_Sym) > symdata_scn->d.d_size))
884+ if (INVALID_NDX (ndx, Elf64_Sym, &symdata_scn->d))
885 {
886 __libelf_seterrno (ELF_E_INVALID_INDEX);
887 goto out;
888Index: elfutils-0.148/libelf/gelf_update_versym.c
889===================================================================
890--- elfutils-0.148.orig/libelf/gelf_update_versym.c 2009-01-08 20:56:37.000000000 +0000
891+++ elfutils-0.148/libelf/gelf_update_versym.c 2010-07-03 13:07:11.000000000 +0000
892@@ -1,5 +1,5 @@
893 /* Update symbol version information.
894- Copyright (C) 2001, 2002 Red Hat, Inc.
895+ Copyright (C) 2001-2009 Red Hat, Inc.
896 This file is part of Red Hat elfutils.
897 Written by Ulrich Drepper <drepper@redhat.com>, 2001.
898
899@@ -75,8 +75,7 @@
900 assert (sizeof (GElf_Versym) == sizeof (Elf64_Versym));
901
902 /* Check whether we have to resize the data buffer. */
903- if (unlikely (ndx < 0)
904- || unlikely ((ndx + 1) * sizeof (GElf_Versym) > data_scn->d.d_size))
905+ if (INVALID_NDX (ndx, GElf_Versym, &data_scn->d))
906 {
907 __libelf_seterrno (ELF_E_INVALID_INDEX);
908 return 0;
909Index: elfutils-0.148/libelf/libelfP.h
910===================================================================
911--- elfutils-0.148.orig/libelf/libelfP.h 2010-01-12 16:57:54.000000000 +0000
912+++ elfutils-0.148/libelf/libelfP.h 2010-07-03 13:07:11.000000000 +0000
913@@ -608,4 +608,8 @@
914 /* Align offset to 4 bytes as needed for note name and descriptor data. */
915 #define NOTE_ALIGN(n) (((n) + 3) & -4U)
916
917+/* Convenience macro. */
918+#define INVALID_NDX(ndx, type, data) \
919+ unlikely ((data)->d_size / sizeof (type) <= (unsigned int) (ndx))
920+
921 #endif /* libelfP.h */
922Index: elfutils-0.148/src/ChangeLog
923===================================================================
924--- elfutils-0.148.orig/src/ChangeLog 2010-07-03 13:07:10.000000000 +0000
925+++ elfutils-0.148/src/ChangeLog 2010-07-03 13:07:11.000000000 +0000
926@@ -1640,6 +1640,16 @@
927 object symbols or symbols with unknown type.
928 (check_rel): Likewise.
929
930+2005-06-09 Roland McGrath <roland@redhat.com>
931+
932+ * readelf.c (handle_dynamic, handle_symtab): Check for bogus sh_link.
933+ (handle_verneed, handle_verdef, handle_versym, handle_hash): Likewise.
934+ (handle_scngrp): Check for bogus sh_info.
935+
936+ * strip.c (handle_elf): Check for bogus values in sh_link, sh_info,
937+ st_shndx, e_shstrndx, and SHT_GROUP or SHT_SYMTAB_SHNDX data.
938+ Don't use assert on input values, instead bail with "illformed" error.
939+
940 2005-06-08 Roland McGrath <roland@redhat.com>
941
942 * readelf.c (print_ops): Add consts.
943@@ -1690,6 +1700,19 @@
944
945 * readelf.c (dwarf_tag_string): Add new tags.
946
947+2005-05-17 Jakub Jelinek <jakub@redhat.com>
948+
949+ * elflint.c (check_hash): Don't check entries beyond end of section.
950+ (check_note): Don't crash if gelf_rawchunk fails.
951+ (section_name): Return <invalid> if gelf_getshdr returns NULL.
952+
953+2005-05-14 Jakub Jelinek <jakub@redhat.com>
954+
955+ * elflint.c (section_name): Return "<invalid>" instead of
956+ crashing on invalid section name.
957+ (check_symtab, is_rel_dyn, check_rela, check_rel, check_dynamic,
958+ check_symtab_shndx, check_hash, check_versym): Robustify.
959+
960 2005-05-08 Roland McGrath <roland@redhat.com>
961
962 * strip.c (handle_elf): Don't translate hash and versym data formats,
963Index: elfutils-0.148/src/elflint.c
964===================================================================
965--- elfutils-0.148.orig/src/elflint.c 2010-04-13 20:08:02.000000000 +0000
966+++ elfutils-0.148/src/elflint.c 2010-07-03 13:07:11.000000000 +0000
967@@ -131,6 +131,10 @@
968 /* Array to count references in section groups. */
969 static int *scnref;
970
971+/* Numbers of sections and program headers. */
972+static unsigned int shnum;
973+static unsigned int phnum;
974+
975
976 int
977 main (int argc, char *argv[])
978@@ -319,10 +323,19 @@
979 {
980 GElf_Shdr shdr_mem;
981 GElf_Shdr *shdr;
982+ const char *ret;
983+
984+ if ((unsigned int) idx > shnum)
985+ return "<invalid>";
986
987 shdr = gelf_getshdr (elf_getscn (ebl->elf, idx), &shdr_mem);
988+ if (shdr == NULL)
989+ return "<invalid>";
990
991- return elf_strptr (ebl->elf, shstrndx, shdr->sh_name);
992+ ret = elf_strptr (ebl->elf, shstrndx, shdr->sh_name);
993+ if (ret == NULL)
994+ return "<invalid>";
995+ return ret;
996 }
997
998
999@@ -344,11 +357,6 @@
1000 (sizeof (valid_e_machine) / sizeof (valid_e_machine[0]))
1001
1002
1003-/* Numbers of sections and program headers. */
1004-static unsigned int shnum;
1005-static unsigned int phnum;
1006-
1007-
1008 static void
1009 check_elf_header (Ebl *ebl, GElf_Ehdr *ehdr, size_t size)
1010 {
1011@@ -632,7 +640,8 @@
1012 }
1013 }
1014
1015- if (shdr->sh_entsize != gelf_fsize (ebl->elf, ELF_T_SYM, 1, EV_CURRENT))
1016+ size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_SYM, 1, EV_CURRENT);
1017+ if (shdr->sh_entsize != sh_entsize)
1018 ERROR (gettext ("\
1019 section [%2u] '%s': entry size is does not match ElfXX_Sym\n"),
1020 idx, section_name (ebl, idx));
1021@@ -670,7 +679,7 @@
1022 xndxscnidx, section_name (ebl, xndxscnidx));
1023 }
1024
1025- for (size_t cnt = 1; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt)
1026+ for (size_t cnt = 1; cnt < shdr->sh_size / sh_entsize; ++cnt)
1027 {
1028 sym = gelf_getsymshndx (data, xndxdata, cnt, &sym_mem, &xndx);
1029 if (sym == NULL)
1030@@ -690,7 +699,8 @@
1031 else
1032 {
1033 name = elf_strptr (ebl->elf, shdr->sh_link, sym->st_name);
1034- assert (name != NULL);
1035+ assert (name != NULL
1036+ || strshdr->sh_type != SHT_STRTAB);
1037 }
1038
1039 if (sym->st_shndx == SHN_XINDEX)
1040@@ -1038,9 +1048,11 @@
1041 {
1042 GElf_Shdr rcshdr_mem;
1043 const GElf_Shdr *rcshdr = gelf_getshdr (scn, &rcshdr_mem);
1044- assert (rcshdr != NULL);
1045
1046- if (rcshdr->sh_type == SHT_DYNAMIC)
1047+ if (rcshdr == NULL)
1048+ break;
1049+
1050+ if (rcshdr->sh_type == SHT_DYNAMIC && rcshdr->sh_entsize)
1051 {
1052 /* Found the dynamic section. Look through it. */
1053 Elf_Data *d = elf_getdata (scn, NULL);
1054@@ -1050,7 +1062,9 @@
1055 {
1056 GElf_Dyn dyn_mem;
1057 GElf_Dyn *dyn = gelf_getdyn (d, cnt, &dyn_mem);
1058- assert (dyn != NULL);
1059+
1060+ if (dyn == NULL)
1061+ break;
1062
1063 if (dyn->d_tag == DT_RELCOUNT)
1064 {
1065@@ -1064,7 +1078,9 @@
1066 /* Does the number specified number of relative
1067 relocations exceed the total number of
1068 relocations? */
1069- if (dyn->d_un.d_val > shdr->sh_size / shdr->sh_entsize)
1070+ if (shdr->sh_entsize != 0
1071+ && dyn->d_un.d_val > (shdr->sh_size
1072+ / shdr->sh_entsize))
1073 ERROR (gettext ("\
1074 section [%2d] '%s': DT_RELCOUNT value %d too high for this section\n"),
1075 idx, section_name (ebl, idx),
1076@@ -1224,7 +1240,8 @@
1077 }
1078 }
1079
1080- if (shdr->sh_entsize != gelf_fsize (ebl->elf, reltype, 1, EV_CURRENT))
1081+ size_t sh_entsize = gelf_fsize (ebl->elf, reltype, 1, EV_CURRENT);
1082+ if (shdr->sh_entsize != sh_entsize)
1083 ERROR (gettext (reltype == ELF_T_RELA ? "\
1084 section [%2d] '%s': section entry size does not match ElfXX_Rela\n" : "\
1085 section [%2d] '%s': section entry size does not match ElfXX_Rel\n"),
1086@@ -1447,7 +1464,8 @@
1087 Elf_Data *symdata = elf_getdata (symscn, NULL);
1088 enum load_state state = state_undecided;
1089
1090- for (size_t cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt)
1091+ size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_RELA, 1, EV_CURRENT);
1092+ for (size_t cnt = 0; cnt < shdr->sh_size / sh_entsize; ++cnt)
1093 {
1094 GElf_Rela rela_mem;
1095 GElf_Rela *rela = gelf_getrela (data, cnt, &rela_mem);
1096@@ -1497,7 +1515,8 @@
1097 Elf_Data *symdata = elf_getdata (symscn, NULL);
1098 enum load_state state = state_undecided;
1099
1100- for (size_t cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt)
1101+ size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_REL, 1, EV_CURRENT);
1102+ for (size_t cnt = 0; cnt < shdr->sh_size / sh_entsize; ++cnt)
1103 {
1104 GElf_Rel rel_mem;
1105 GElf_Rel *rel = gelf_getrel (data, cnt, &rel_mem);
1106@@ -1600,7 +1619,8 @@
1107 shdr->sh_link, section_name (ebl, shdr->sh_link),
1108 idx, section_name (ebl, idx));
1109
1110- if (shdr->sh_entsize != gelf_fsize (ebl->elf, ELF_T_DYN, 1, EV_CURRENT))
1111+ size_t sh_entsize = gelf_fsize (ebl->elf, ELF_T_DYN, 1, EV_CURRENT);
1112+ if (shdr->sh_entsize != sh_entsize)
1113 ERROR (gettext ("\
1114 section [%2d] '%s': section entry size does not match ElfXX_Dyn\n"),
1115 idx, section_name (ebl, idx));
1116@@ -1610,7 +1630,7 @@
1117 idx, section_name (ebl, idx));
1118
1119 bool non_null_warned = false;
1120- for (cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt)
1121+ for (cnt = 0; cnt < shdr->sh_size / sh_entsize; ++cnt)
1122 {
1123 GElf_Dyn dyn_mem;
1124 GElf_Dyn *dyn = gelf_getdyn (data, cnt, &dyn_mem);
1125@@ -1891,6 +1911,8 @@
1126 idx, section_name (ebl, idx));
1127
1128 if (symshdr != NULL
1129+ && shdr->sh_entsize
1130+ && symshdr->sh_entsize
1131 && (shdr->sh_size / shdr->sh_entsize
1132 < symshdr->sh_size / symshdr->sh_entsize))
1133 ERROR (gettext ("\
1134@@ -1917,6 +1939,12 @@
1135 }
1136
1137 Elf_Data *data = elf_getdata (elf_getscn (ebl->elf, idx), NULL);
1138+ if (data == NULL)
1139+ {
1140+ ERROR (gettext ("section [%2d] '%s': cannot get section data\n"),
1141+ idx, section_name (ebl, idx));
1142+ return;
1143+ }
1144
1145 if (*((Elf32_Word *) data->d_buf) != 0)
1146 ERROR (gettext ("symbol 0 should have zero extended section index\n"));
1147@@ -1959,7 +1987,7 @@
1148
1149 size_t maxidx = nchain;
1150
1151- if (symshdr != NULL)
1152+ if (symshdr != NULL && symshdr->sh_entsize != 0)
1153 {
1154 size_t symsize = symshdr->sh_size / symshdr->sh_entsize;
1155
1156@@ -1970,18 +1998,28 @@
1157 maxidx = symsize;
1158 }
1159
1160+ Elf32_Word *buf = (Elf32_Word *) data->d_buf;
1161+ Elf32_Word *end = (Elf32_Word *) ((char *) data->d_buf + shdr->sh_size);
1162 size_t cnt;
1163 for (cnt = 2; cnt < 2 + nbucket; ++cnt)
1164- if (((Elf32_Word *) data->d_buf)[cnt] >= maxidx)
1165+ {
1166+ if (buf + cnt >= end)
1167+ break;
1168+ else if (buf[cnt] >= maxidx)
1169 ERROR (gettext ("\
1170 section [%2d] '%s': hash bucket reference %zu out of bounds\n"),
1171 idx, section_name (ebl, idx), cnt - 2);
1172+ }
1173
1174 for (; cnt < 2 + nbucket + nchain; ++cnt)
1175- if (((Elf32_Word *) data->d_buf)[cnt] >= maxidx)
1176+ {
1177+ if (buf + cnt >= end)
1178+ break;
1179+ else if (buf[cnt] >= maxidx)
1180 ERROR (gettext ("\
1181 section [%2d] '%s': hash chain reference %zu out of bounds\n"),
1182 idx, section_name (ebl, idx), cnt - 2 - nbucket);
1183+ }
1184 }
1185
1186
1187@@ -2011,18 +2049,28 @@
1188 maxidx = symsize;
1189 }
1190
1191+ Elf64_Xword *buf = (Elf64_Xword *) data->d_buf;
1192+ Elf64_Xword *end = (Elf64_Xword *) ((char *) data->d_buf + shdr->sh_size);
1193 size_t cnt;
1194 for (cnt = 2; cnt < 2 + nbucket; ++cnt)
1195- if (((Elf64_Xword *) data->d_buf)[cnt] >= maxidx)
1196+ {
1197+ if (buf + cnt >= end)
1198+ break;
1199+ else if (buf[cnt] >= maxidx)
1200 ERROR (gettext ("\
1201 section [%2d] '%s': hash bucket reference %zu out of bounds\n"),
1202 idx, section_name (ebl, idx), cnt - 2);
1203+ }
1204
1205 for (; cnt < 2 + nbucket + nchain; ++cnt)
1206- if (((Elf64_Xword *) data->d_buf)[cnt] >= maxidx)
1207+ {
1208+ if (buf + cnt >= end)
1209+ break;
1210+ else if (buf[cnt] >= maxidx)
1211 ERROR (gettext ("\
1212 section [%2d] '%s': hash chain reference %" PRIu64 " out of bounds\n"),
1213- idx, section_name (ebl, idx), (uint64_t) (cnt - 2 - nbucket));
1214+ idx, section_name (ebl, idx), (uint64_t) cnt - 2 - nbucket);
1215+ }
1216 }
1217
1218
1219@@ -2047,7 +2095,7 @@
1220 if (shdr->sh_size < (4 + bitmask_words + nbuckets) * sizeof (Elf32_Word))
1221 {
1222 ERROR (gettext ("\
1223-section [%2d] '%s': hash table section is too small (is %ld, expected at least%ld)\n"),
1224+section [%2d] '%s': hash table section is too small (is %ld, expected at least %ld)\n"),
1225 idx, section_name (ebl, idx), (long int) shdr->sh_size,
1226 (long int) ((4 + bitmask_words + nbuckets) * sizeof (Elf32_Word)));
1227 return;
1228@@ -2719,8 +2767,9 @@
1229
1230 /* The number of elements in the version symbol table must be the
1231 same as the number of symbols. */
1232- if (shdr->sh_size / shdr->sh_entsize
1233- != symshdr->sh_size / symshdr->sh_entsize)
1234+ if (shdr->sh_entsize && symshdr->sh_entsize
1235+ && (shdr->sh_size / shdr->sh_entsize
1236+ != symshdr->sh_size / symshdr->sh_entsize))
1237 ERROR (gettext ("\
1238 section [%2d] '%s' has different number of entries than symbol table [%2d] '%s'\n"),
1239 idx, section_name (ebl, idx),
1240Index: elfutils-0.148/src/readelf.c
1241===================================================================
1242--- elfutils-0.148.orig/src/readelf.c 2010-07-03 13:07:10.000000000 +0000
1243+++ elfutils-0.148/src/readelf.c 2010-07-03 13:07:11.000000000 +0000
1244@@ -1172,6 +1172,8 @@
1245 Elf32_Word *grpref = (Elf32_Word *) data->d_buf;
1246
1247 GElf_Sym sym_mem;
1248+ GElf_Sym *sym = gelf_getsym (symdata, shdr->sh_info, &sym_mem);
1249+
1250 printf ((grpref[0] & GRP_COMDAT)
1251 ? ngettext ("\
1252 \nCOMDAT section group [%2zu] '%s' with signature '%s' contains %zu entry:\n",
1253@@ -1184,8 +1186,8 @@
1254 data->d_size / sizeof (Elf32_Word) - 1),
1255 elf_ndxscn (scn),
1256 elf_strptr (ebl->elf, shstrndx, shdr->sh_name),
1257- elf_strptr (ebl->elf, symshdr->sh_link,
1258- gelf_getsym (symdata, shdr->sh_info, &sym_mem)->st_name)
1259+ (sym == NULL ? NULL
1260+ : elf_strptr (ebl->elf, symshdr->sh_link, sym->st_name))
1261 ?: gettext ("<INVALID SYMBOL>"),
1262 data->d_size / sizeof (Elf32_Word) - 1);
1263
1264@@ -1336,7 +1338,8 @@
1265 handle_dynamic (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr)
1266 {
1267 int class = gelf_getclass (ebl->elf);
1268- GElf_Shdr glink;
1269+ GElf_Shdr glink_mem;
1270+ GElf_Shdr *glink;
1271 Elf_Data *data;
1272 size_t cnt;
1273 size_t shstrndx;
1274@@ -1351,6 +1354,11 @@
1275 error (EXIT_FAILURE, 0,
1276 gettext ("cannot get section header string table index"));
1277
1278+ glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), &glink_mem);
1279+ if (glink == NULL)
1280+ error (EXIT_FAILURE, 0, gettext ("invalid sh_link value in section %Zu"),
1281+ elf_ndxscn (scn));
1282+
1283 printf (ngettext ("\
1284 \nDynamic segment contains %lu entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n",
1285 "\
1286@@ -1360,9 +1368,7 @@
1287 class == ELFCLASS32 ? 10 : 18, shdr->sh_addr,
1288 shdr->sh_offset,
1289 (int) shdr->sh_link,
1290- elf_strptr (ebl->elf, shstrndx,
1291- gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link),
1292- &glink)->sh_name));
1293+ elf_strptr (ebl->elf, shstrndx, glink->sh_name));
1294 fputs_unlocked (gettext (" Type Value\n"), stdout);
1295
1296 for (cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt)
1297@@ -1945,6 +1951,13 @@
1298 error (EXIT_FAILURE, 0,
1299 gettext ("cannot get section header string table index"));
1300
1301+ GElf_Shdr glink_mem;
1302+ GElf_Shdr *glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link),
1303+ &glink_mem);
1304+ if (glink == NULL)
1305+ error (EXIT_FAILURE, 0, gettext ("invalid sh_link value in section %Zu"),
1306+ elf_ndxscn (scn));
1307+
1308 /* Now we can compute the number of entries in the section. */
1309 unsigned int nsyms = data->d_size / (class == ELFCLASS32
1310 ? sizeof (Elf32_Sym)
1311@@ -1955,15 +1968,12 @@
1312 nsyms),
1313 (unsigned int) elf_ndxscn (scn),
1314 elf_strptr (ebl->elf, shstrndx, shdr->sh_name), nsyms);
1315- GElf_Shdr glink;
1316 printf (ngettext (" %lu local symbol String table: [%2u] '%s'\n",
1317 " %lu local symbols String table: [%2u] '%s'\n",
1318 shdr->sh_info),
1319 (unsigned long int) shdr->sh_info,
1320 (unsigned int) shdr->sh_link,
1321- elf_strptr (ebl->elf, shstrndx,
1322- gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link),
1323- &glink)->sh_name));
1324+ elf_strptr (ebl->elf, shstrndx, glink->sh_name));
1325
1326 fputs_unlocked (class == ELFCLASS32
1327 ? gettext ("\
1328@@ -2199,7 +2209,13 @@
1329 error (EXIT_FAILURE, 0,
1330 gettext ("cannot get section header string table index"));
1331
1332- GElf_Shdr glink;
1333+ GElf_Shdr glink_mem;
1334+ GElf_Shdr *glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link),
1335+ &glink_mem);
1336+ if (glink == NULL)
1337+ error (EXIT_FAILURE, 0, gettext ("invalid sh_link value in section %Zu"),
1338+ elf_ndxscn (scn));
1339+
1340 printf (ngettext ("\
1341 \nVersion needs section [%2u] '%s' contains %d entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n",
1342 "\
1343@@ -2210,9 +2226,7 @@
1344 class == ELFCLASS32 ? 10 : 18, shdr->sh_addr,
1345 shdr->sh_offset,
1346 (unsigned int) shdr->sh_link,
1347- elf_strptr (ebl->elf, shstrndx,
1348- gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link),
1349- &glink)->sh_name));
1350+ elf_strptr (ebl->elf, shstrndx, glink->sh_name));
1351
1352 unsigned int offset = 0;
1353 for (int cnt = shdr->sh_info; --cnt >= 0; )
1354@@ -2265,8 +2279,14 @@
1355 error (EXIT_FAILURE, 0,
1356 gettext ("cannot get section header string table index"));
1357
1358+ GElf_Shdr glink_mem;
1359+ GElf_Shdr *glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link),
1360+ &glink_mem);
1361+ if (glink == NULL)
1362+ error (EXIT_FAILURE, 0, gettext ("invalid sh_link value in section %Zu"),
1363+ elf_ndxscn (scn));
1364+
1365 int class = gelf_getclass (ebl->elf);
1366- GElf_Shdr glink;
1367 printf (ngettext ("\
1368 \nVersion definition section [%2u] '%s' contains %d entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n",
1369 "\
1370@@ -2278,9 +2298,7 @@
1371 class == ELFCLASS32 ? 10 : 18, shdr->sh_addr,
1372 shdr->sh_offset,
1373 (unsigned int) shdr->sh_link,
1374- elf_strptr (ebl->elf, shstrndx,
1375- gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link),
1376- &glink)->sh_name));
1377+ elf_strptr (ebl->elf, shstrndx, glink->sh_name));
1378
1379 unsigned int offset = 0;
1380 for (int cnt = shdr->sh_info; --cnt >= 0; )
1381@@ -2542,8 +2560,14 @@
1382 filename = NULL;
1383 }
1384
1385+ GElf_Shdr glink_mem;
1386+ GElf_Shdr *glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link),
1387+ &glink_mem);
1388+ if (glink == NULL)
1389+ error (EXIT_FAILURE, 0, gettext ("invalid sh_link value in section %Zu"),
1390+ elf_ndxscn (scn));
1391+
1392 /* Print the header. */
1393- GElf_Shdr glink;
1394 printf (ngettext ("\
1395 \nVersion symbols section [%2u] '%s' contains %d entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'",
1396 "\
1397@@ -2555,9 +2579,7 @@
1398 class == ELFCLASS32 ? 10 : 18, shdr->sh_addr,
1399 shdr->sh_offset,
1400 (unsigned int) shdr->sh_link,
1401- elf_strptr (ebl->elf, shstrndx,
1402- gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link),
1403- &glink)->sh_name));
1404+ elf_strptr (ebl->elf, shstrndx, glink->sh_name));
1405
1406 /* Now we can finally look at the actual contents of this section. */
1407 for (unsigned int cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt)
1408@@ -2609,7 +2631,17 @@
1409 for (Elf32_Word cnt = 0; cnt < nbucket; ++cnt)
1410 ++counts[lengths[cnt]];
1411
1412- GElf_Shdr glink;
1413+ GElf_Shdr glink_mem;
1414+ GElf_Shdr *glink = gelf_getshdr (elf_getscn (ebl->elf,
1415+ shdr->sh_link),
1416+ &glink_mem);
1417+ if (glink == NULL)
1418+ {
1419+ error (0, 0, gettext ("invalid sh_link value in section %Zu"),
1420+ elf_ndxscn (scn));
1421+ return;
1422+ }
1423+
1424 printf (ngettext ("\
1425 \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",
1426 "\
1427@@ -2622,9 +2654,7 @@
1428 shdr->sh_addr,
1429 shdr->sh_offset,
1430 (unsigned int) shdr->sh_link,
1431- elf_strptr (ebl->elf, shstrndx,
1432- gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link),
1433- &glink)->sh_name));
1434+ elf_strptr (ebl->elf, shstrndx, glink->sh_name));
1435
1436 if (extrastr != NULL)
1437 fputs (extrastr, stdout);
1438@@ -4312,6 +4342,16 @@
1439 return;
1440 }
1441
1442+ GElf_Shdr glink_mem;
1443+ GElf_Shdr *glink;
1444+ glink = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), &glink_mem);
1445+ if (glink == NULL)
1446+ {
1447+ error (0, 0, gettext ("invalid sh_link value in section %Zu"),
1448+ elf_ndxscn (scn));
1449+ return;
1450+ }
1451+
1452 printf (ngettext ("\
1453 \nDWARF section [%2zu] '%s' at offset %#" PRIx64 " contains %zu entry:\n",
1454 "\
1455Index: elfutils-0.148/src/strip.c
1456===================================================================
1457--- elfutils-0.148.orig/src/strip.c 2010-07-03 13:07:10.000000000 +0000
1458+++ elfutils-0.148/src/strip.c 2010-07-03 13:07:11.000000000 +0000
1459@@ -561,6 +561,11 @@
1460 goto fail_close;
1461 }
1462
1463+ if (shstrndx >= shnum)
1464+ goto illformed;
1465+
1466+#define elf_assert(test) do { if (!(test)) goto illformed; } while (0)
1467+
1468 /* Storage for section information. We leave room for two more
1469 entries since we unconditionally create a section header string
1470 table. Maybe some weird tool created an ELF file without one.
1471@@ -582,7 +587,7 @@
1472 {
1473 /* This should always be true (i.e., there should not be any
1474 holes in the numbering). */
1475- assert (elf_ndxscn (scn) == cnt);
1476+ elf_assert (elf_ndxscn (scn) == cnt);
1477
1478 shdr_info[cnt].scn = scn;
1479
1480@@ -595,6 +600,7 @@
1481 shdr_info[cnt].shdr.sh_name);
1482 if (shdr_info[cnt].name == NULL)
1483 {
1484+ illformed:
1485 error (0, 0, gettext ("illformed file '%s'"), fname);
1486 goto fail_close;
1487 }
1488@@ -604,6 +610,8 @@
1489
1490 /* Remember the shdr.sh_link value. */
1491 shdr_info[cnt].old_sh_link = shdr_info[cnt].shdr.sh_link;
1492+ if (shdr_info[cnt].old_sh_link >= shnum)
1493+ goto illformed;
1494
1495 /* Sections in files other than relocatable object files which
1496 are not loaded can be freely moved by us. In relocatable
1497@@ -616,7 +624,7 @@
1498 appropriate reference. */
1499 if (unlikely (shdr_info[cnt].shdr.sh_type == SHT_SYMTAB_SHNDX))
1500 {
1501- assert (shdr_info[shdr_info[cnt].shdr.sh_link].symtab_idx == 0);
1502+ elf_assert (shdr_info[shdr_info[cnt].shdr.sh_link].symtab_idx == 0);
1503 shdr_info[shdr_info[cnt].shdr.sh_link].symtab_idx = cnt;
1504 }
1505 else if (unlikely (shdr_info[cnt].shdr.sh_type == SHT_GROUP))
1506@@ -633,7 +641,12 @@
1507 for (inner = 1;
1508 inner < shdr_info[cnt].data->d_size / sizeof (Elf32_Word);
1509 ++inner)
1510+ {
1511+ if (grpref[inner] < shnum)
1512 shdr_info[grpref[inner]].group_idx = cnt;
1513+ else
1514+ goto illformed;
1515+ }
1516
1517 if (inner == 1 || (inner == 2 && (grpref[0] & GRP_COMDAT) == 0))
1518 /* If the section group contains only one element and this
1519@@ -644,7 +657,7 @@
1520 }
1521 else if (unlikely (shdr_info[cnt].shdr.sh_type == SHT_GNU_versym))
1522 {
1523- assert (shdr_info[shdr_info[cnt].shdr.sh_link].version_idx == 0);
1524+ elf_assert (shdr_info[shdr_info[cnt].shdr.sh_link].version_idx == 0);
1525 shdr_info[shdr_info[cnt].shdr.sh_link].version_idx = cnt;
1526 }
1527
1528@@ -652,7 +665,7 @@
1529 discarded right away. */
1530 if ((shdr_info[cnt].shdr.sh_flags & SHF_GROUP) != 0)
1531 {
1532- assert (shdr_info[cnt].group_idx != 0);
1533+ elf_assert (shdr_info[cnt].group_idx != 0);
1534
1535 if (shdr_info[shdr_info[cnt].group_idx].idx == 0)
1536 {
1537@@ -727,11 +740,15 @@
1538 {
1539 /* If a relocation section is marked as being removed make
1540 sure the section it is relocating is removed, too. */
1541- if ((shdr_info[cnt].shdr.sh_type == SHT_REL
1542+ if (shdr_info[cnt].shdr.sh_type == SHT_REL
1543 || shdr_info[cnt].shdr.sh_type == SHT_RELA)
1544- && shdr_info[shdr_info[cnt].shdr.sh_info].idx != 0)
1545+ {
1546+ if (shdr_info[cnt].shdr.sh_info >= shnum)
1547+ goto illformed;
1548+ else if (shdr_info[shdr_info[cnt].shdr.sh_info].idx != 0)
1549 shdr_info[cnt].idx = 1;
1550 }
1551+ }
1552
1553 if (shdr_info[cnt].idx == 1)
1554 {
1555@@ -758,7 +775,7 @@
1556 if (shdr_info[cnt].symtab_idx != 0
1557 && shdr_info[shdr_info[cnt].symtab_idx].data == NULL)
1558 {
1559- assert (shdr_info[cnt].shdr.sh_type == SHT_SYMTAB);
1560+ elf_assert (shdr_info[cnt].shdr.sh_type == SHT_SYMTAB);
1561
1562 shdr_info[shdr_info[cnt].symtab_idx].data
1563 = elf_getdata (shdr_info[shdr_info[cnt].symtab_idx].scn,
1564@@ -798,6 +815,9 @@
1565 else if (scnidx == SHN_XINDEX)
1566 scnidx = xndx;
1567
1568+ if (scnidx >= shnum)
1569+ goto illformed;
1570+
1571 if (shdr_info[scnidx].idx == 0)
1572 /* This symbol table has a real symbol in
1573 a discarded section. So preserve the
1574@@ -828,12 +848,16 @@
1575 }
1576
1577 /* Handle references through sh_info. */
1578- if (SH_INFO_LINK_P (&shdr_info[cnt].shdr)
1579- && shdr_info[shdr_info[cnt].shdr.sh_info].idx == 0)
1580+ if (SH_INFO_LINK_P (&shdr_info[cnt].shdr))
1581+ {
1582+ if (shdr_info[cnt].shdr.sh_info >= shnum)
1583+ goto illformed;
1584+ else if ( shdr_info[shdr_info[cnt].shdr.sh_info].idx == 0)
1585 {
1586 shdr_info[shdr_info[cnt].shdr.sh_info].idx = 1;
1587 changes |= shdr_info[cnt].shdr.sh_info < cnt;
1588 }
1589+ }
1590
1591 /* Mark the section as investigated. */
1592 shdr_info[cnt].idx = 2;
1593@@ -972,7 +996,7 @@
1594 error (EXIT_FAILURE, 0, gettext ("while generating output file: %s"),
1595 elf_errmsg (-1));
1596
1597- assert (elf_ndxscn (shdr_info[cnt].newscn) == shdr_info[cnt].idx);
1598+ elf_assert (elf_ndxscn (shdr_info[cnt].newscn) == shdr_info[cnt].idx);
1599
1600 /* Add this name to the section header string table. */
1601 shdr_info[cnt].se = ebl_strtabadd (shst, shdr_info[cnt].name, 0);
1602@@ -1009,7 +1033,7 @@
1603 error (EXIT_FAILURE, 0,
1604 gettext ("while create section header section: %s"),
1605 elf_errmsg (-1));
1606- assert (elf_ndxscn (shdr_info[cnt].newscn) == shdr_info[cnt].idx);
1607+ elf_assert (elf_ndxscn (shdr_info[cnt].newscn) == shdr_info[cnt].idx);
1608
1609 shdr_info[cnt].data = elf_newdata (shdr_info[cnt].newscn);
1610 if (shdr_info[cnt].data == NULL)
1611@@ -1065,7 +1089,7 @@
1612 error (EXIT_FAILURE, 0,
1613 gettext ("while create section header section: %s"),
1614 elf_errmsg (-1));
1615- assert (elf_ndxscn (shdr_info[cnt].newscn) == idx);
1616+ elf_assert (elf_ndxscn (shdr_info[cnt].newscn) == idx);
1617
1618 /* Finalize the string table and fill in the correct indices in the
1619 section headers. */
1620@@ -1155,20 +1179,20 @@
1621 shndxdata = elf_getdata (shdr_info[shdr_info[cnt].symtab_idx].scn,
1622 NULL);
1623
1624- assert ((versiondata->d_size / sizeof (Elf32_Word))
1625+ elf_assert ((versiondata->d_size / sizeof (Elf32_Word))
1626 >= shdr_info[cnt].data->d_size / elsize);
1627 }
1628
1629 if (shdr_info[cnt].version_idx != 0)
1630 {
1631- assert (shdr_info[cnt].shdr.sh_type == SHT_DYNSYM);
1632+ elf_assert (shdr_info[cnt].shdr.sh_type == SHT_DYNSYM);
1633 /* This section has associated version
1634 information. We have to modify that
1635 information, too. */
1636 versiondata = elf_getdata (shdr_info[shdr_info[cnt].version_idx].scn,
1637 NULL);
1638
1639- assert ((versiondata->d_size / sizeof (GElf_Versym))
1640+ elf_assert ((versiondata->d_size / sizeof (GElf_Versym))
1641 >= shdr_info[cnt].data->d_size / elsize);
1642 }
1643
1644@@ -1223,7 +1247,7 @@
1645 sec = shdr_info[sym->st_shndx].idx;
1646 else
1647 {
1648- assert (shndxdata != NULL);
1649+ elf_assert (shndxdata != NULL);
1650
1651 sec = shdr_info[xshndx].idx;
1652 }
1653@@ -1244,7 +1268,7 @@
1654 nxshndx = sec;
1655 }
1656
1657- assert (sec < SHN_LORESERVE || shndxdata != NULL);
1658+ elf_assert (sec < SHN_LORESERVE || shndxdata != NULL);
1659
1660 if ((inner != destidx || nshndx != sym->st_shndx
1661 || (shndxdata != NULL && nxshndx != xshndx))
1662@@ -1268,7 +1292,7 @@
1663 || shdr_info[cnt].debug_data == NULL)
1664 /* This is a section symbol for a section which has
1665 been removed. */
1666- assert (GELF_ST_TYPE (sym->st_info) == STT_SECTION);
1667+ elf_assert (GELF_ST_TYPE (sym->st_info) == STT_SECTION);
1668 }
1669
1670 if (destidx != inner)
1671@@ -1455,11 +1479,11 @@
1672 {
1673 GElf_Sym sym_mem;
1674 GElf_Sym *sym = gelf_getsym (symd, inner, &sym_mem);
1675- assert (sym != NULL);
1676+ elf_assert (sym != NULL);
1677
1678 const char *name = elf_strptr (elf, strshndx,
1679 sym->st_name);
1680- assert (name != NULL);
1681+ elf_assert (name != NULL);
1682 size_t hidx = elf_hash (name) % nbucket;
1683
1684 if (bucket[hidx] == 0)
1685@@ -1478,7 +1502,7 @@
1686 else
1687 {
1688 /* Alpha and S390 64-bit use 64-bit SHT_HASH entries. */
1689- assert (shdr_info[cnt].shdr.sh_entsize
1690+ elf_assert (shdr_info[cnt].shdr.sh_entsize
1691 == sizeof (Elf64_Xword));
1692
1693 Elf64_Xword *bucket = (Elf64_Xword *) hashd->d_buf;
1694@@ -1509,11 +1533,11 @@
1695 {
1696 GElf_Sym sym_mem;
1697 GElf_Sym *sym = gelf_getsym (symd, inner, &sym_mem);
1698- assert (sym != NULL);
1699+ elf_assert (sym != NULL);
1700
1701 const char *name = elf_strptr (elf, strshndx,
1702 sym->st_name);
1703- assert (name != NULL);
1704+ elf_assert (name != NULL);
1705 size_t hidx = elf_hash (name) % nbucket;
1706
1707 if (bucket[hidx] == 0)
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2026-08-16 01:07:06 +0000