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Update robustification for 0.122; use dist tag in rpm release.

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This commit is contained in:
roland 2006-07-12 22:08:26 +00:00
parent a997709d14
commit e76067db95
2 changed files with 236 additions and 200 deletions
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382
elfutils-robustify.patch
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@ -65,8 +65,8 @@ src/
(check_symtab, is_rel_dyn, check_rela, check_rel, check_dynamic,
check_symtab_shndx, check_hash, check_versym): Robustify.
--- elfutils-0.120/libelf/elf32_getphdr.c
+++ elfutils-0.120/libelf/elf32_getphdr.c
--- elfutils-0.122/libelf/elf32_getphdr.c
+++ elfutils-0.122/libelf/elf32_getphdr.c
@@ -115,6 +115,16 @@ elfw2(LIBELFBITS,getphdr) (elf)
if (elf->map_address != NULL)
@ -84,8 +84,8 @@ src/
/* All the data is already mapped. Use it. */
if (ehdr->e_ident[EI_DATA] == MY_ELFDATA
&& (ALLOW_UNALIGNED
--- elfutils-0.120/libelf/elf32_getshdr.c
+++ elfutils-0.120/libelf/elf32_getshdr.c
--- elfutils-0.122/libelf/elf32_getshdr.c
+++ elfutils-0.122/libelf/elf32_getshdr.c
@@ -101,11 +101,12 @@ elfw2(LIBELFBITS,getshdr) (scn)
goto out;
@ -118,8 +118,8 @@ src/
/* Now copy the data and at the same time convert the byte
order. */
if (ALLOW_UNALIGNED
--- elfutils-0.120/libelf/elf32_newphdr.c
+++ elfutils-0.120/libelf/elf32_newphdr.c
--- elfutils-0.122/libelf/elf32_newphdr.c
+++ elfutils-0.122/libelf/elf32_newphdr.c
@@ -124,6 +124,12 @@ elfw2(LIBELFBITS,newphdr) (elf, count)
else if (elf->state.ELFW(elf,LIBELFBITS).ehdr->e_phnum != count
|| elf->state.ELFW(elf,LIBELFBITS).phdr == NULL)
@ -133,8 +133,8 @@ src/
/* Allocate a new program header with the appropriate number of
elements. */
result = (ElfW2(LIBELFBITS,Phdr) *)
--- elfutils-0.120/libelf/elf32_updatefile.c
+++ elfutils-0.120/libelf/elf32_updatefile.c
--- elfutils-0.122/libelf/elf32_updatefile.c
+++ elfutils-0.122/libelf/elf32_updatefile.c
@@ -201,6 +201,9 @@ __elfw2(LIBELFBITS,updatemmap) (Elf *elf
/* Write all the sections. Well, only those which are modified. */
if (shnum > 0)
@ -145,7 +145,7 @@ src/
Elf_ScnList *list = &elf->state.ELFW(elf,LIBELFBITS).scns;
Elf_Scn **scns = (Elf_Scn **) alloca (shnum * sizeof (Elf_Scn *));
char *const shdr_start = ((char *) elf->map_address + elf->start_offset
@@ -545,6 +548,10 @@ __elfw2(LIBELFBITS,updatefile) (Elf *elf
@@ -571,6 +574,10 @@ __elfw2(LIBELFBITS,updatefile) (Elf *elf
/* Write all the sections. Well, only those which are modified. */
if (shnum > 0)
{
@ -156,8 +156,8 @@ src/
off_t shdr_offset = elf->start_offset + ehdr->e_shoff;
#if EV_NUM != 2
xfct_t shdr_fctp = __elf_xfctstom[__libelf_version - 1][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_SHDR];
--- elfutils-0.120/libelf/elf_begin.c
+++ elfutils-0.120/libelf/elf_begin.c
--- elfutils-0.122/libelf/elf_begin.c
+++ elfutils-0.122/libelf/elf_begin.c
@@ -155,7 +155,8 @@ get_shnum (void *map_address, unsigned c
if (unlikely (result == 0) && ehdr.e32->e_shoff != 0)
@ -212,20 +212,16 @@ src/
= (Elf32_Shdr *) ((char *) ehdr + ehdr->e_shoff);
+
if (ehdr->e_phnum > 0)
- /* Assign a value only if there really is a program
- header. Otherwise the value remains NULL. */
- elf->state.elf32.phdr
- = (Elf32_Phdr *) ((char *) ehdr + ehdr->e_phoff);
+ {
+ /* Assign a value only if there really is a program
+ header. Otherwise the value remains NULL. */
/* Assign a value only if there really is a program
header. Otherwise the value remains NULL. */
+ if (unlikely (ehdr->e_phoff >= maxsize)
+ || unlikely (ehdr->e_phoff
+ + ehdr->e_phnum
+ * sizeof (Elf32_Phdr) > maxsize))
+ goto free_and_out;
+ elf->state.elf32.phdr
+ = (Elf32_Phdr *) ((char *) ehdr + ehdr->e_phoff);
elf->state.elf32.phdr
= (Elf32_Phdr *) ((char *) ehdr + ehdr->e_phoff);
+ }
for (size_t cnt = 0; cnt < scncnt; ++cnt)
@ -243,26 +239,22 @@ src/
= (Elf64_Shdr *) ((char *) ehdr + ehdr->e_shoff);
+
if (ehdr->e_phnum > 0)
- /* Assign a value only if there really is a program
- header. Otherwise the value remains NULL. */
- elf->state.elf64.phdr
- = (Elf64_Phdr *) ((char *) ehdr + ehdr->e_phoff);
+ {
+ /* Assign a value only if there really is a program
+ header. Otherwise the value remains NULL. */
/* Assign a value only if there really is a program
header. Otherwise the value remains NULL. */
+ if (unlikely (ehdr->e_phoff >= maxsize)
+ || unlikely (ehdr->e_phoff
+ + ehdr->e_phnum
+ * sizeof (Elf32_Phdr) > maxsize))
+ goto free_and_out;
+ elf->state.elf64.phdr
+ = (Elf64_Phdr *) ((char *) ehdr + ehdr->e_phoff);
elf->state.elf64.phdr
= (Elf64_Phdr *) ((char *) ehdr + ehdr->e_phoff);
+ }
for (size_t cnt = 0; cnt < scncnt; ++cnt)
{
--- elfutils-0.120/libelf/elf_getarsym.c
+++ elfutils-0.120/libelf/elf_getarsym.c
--- elfutils-0.122/libelf/elf_getarsym.c
+++ elfutils-0.122/libelf/elf_getarsym.c
@@ -179,6 +179,9 @@ elf_getarsym (elf, ptr)
size_t index_size = atol (tmpbuf);
@ -273,8 +265,8 @@ src/
|| n * sizeof (uint32_t) > index_size)
{
/* This index table cannot be right since it does not fit into
--- elfutils-0.120/libelf/elf_getshstrndx.c
+++ elfutils-0.120/libelf/elf_getshstrndx.c
--- elfutils-0.122/libelf/elf_getshstrndx.c
+++ elfutils-0.122/libelf/elf_getshstrndx.c
@@ -125,10 +125,25 @@ elf_getshstrndx (elf, dst)
if (elf->map_address != NULL
&& elf->state.elf32.ehdr->e_ident[EI_DATA] == MY_ELFDATA
@ -283,8 +275,6 @@ src/
+ || (((size_t) ((char *) elf->map_address
+ + elf->start_offset + offset))
& (__alignof__ (Elf32_Shdr) - 1)) == 0))
- /* We can directly access the memory. */
- num = ((Elf32_Shdr *) (elf->map_address + offset))->sh_link;
+ {
+ /* First see whether the information in the ELF header is
+ valid and it does not ask for too much. */
@ -297,7 +287,8 @@ src/
+ goto out;
+ }
+
+ /* We can directly access the memory. */
/* We can directly access the memory. */
- num = ((Elf32_Shdr *) (elf->map_address + offset))->sh_link;
+ num = ((Elf32_Shdr *) (elf->map_address + elf->start_offset
+ + offset))->sh_link;
+ }
@ -312,8 +303,6 @@ src/
+ || (((size_t) ((char *) elf->map_address
+ + elf->start_offset + offset))
& (__alignof__ (Elf64_Shdr) - 1)) == 0))
- /* We can directly access the memory. */
- num = ((Elf64_Shdr *) (elf->map_address + offset))->sh_link;
+ {
+ /* First see whether the information in the ELF header is
+ valid and it does not ask for too much. */
@ -326,16 +315,17 @@ src/
+ goto out;
+ }
+
+ /* We can directly access the memory. */
/* We can directly access the memory. */
- num = ((Elf64_Shdr *) (elf->map_address + offset))->sh_link;
+ num = ((Elf64_Shdr *) (elf->map_address
+ + elf->start_offset + offset))->sh_link;
+ }
else
{
/* We avoid reading in all the section headers. Just read
--- elfutils-0.120/libelf/elf_newscn.c
+++ elfutils-0.120/libelf/elf_newscn.c
@@ -104,13 +104,21 @@ elf_newscn (elf)
--- elfutils-0.122/libelf/elf_newscn.c
+++ elfutils-0.122/libelf/elf_newscn.c
@@ -104,10 +104,18 @@ elf_newscn (elf)
else
{
/* We must allocate a new element. */
@ -344,9 +334,6 @@ src/
assert (elf->state.elf.scnincr > 0);
- newp = (Elf_ScnList *) calloc (sizeof (Elf_ScnList)
- + ((elf->state.elf.scnincr *= 2)
- * sizeof (Elf_Scn)), 1);
+ if (
+#if SIZE_MAX <= 4294967295U
+ likely (elf->state.elf.scnincr
@ -355,14 +342,11 @@ src/
+ 1
+#endif
+ )
+ newp = (Elf_ScnList *) calloc (sizeof (Elf_ScnList)
+ + ((elf->state.elf.scnincr *= 2)
+ * sizeof (Elf_Scn)), 1);
if (newp == NULL)
{
__libelf_seterrno (ELF_E_NOMEM);
--- elfutils-0.120/libelf/gelf_getdyn.c
+++ elfutils-0.120/libelf/gelf_getdyn.c
newp = (Elf_ScnList *) calloc (sizeof (Elf_ScnList)
+ ((elf->state.elf.scnincr *= 2)
* sizeof (Elf_Scn)), 1);
--- elfutils-0.122/libelf/gelf_getdyn.c
+++ elfutils-0.122/libelf/gelf_getdyn.c
@@ -93,7 +93,8 @@ gelf_getdyn (data, ndx, dst)
table entries has to be adopted. The user better has provided
a buffer where we can store the information. While copying the
@ -383,8 +367,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
goto out;
--- elfutils-0.120/libelf/gelf_getlib.c
+++ elfutils-0.120/libelf/gelf_getlib.c
--- elfutils-0.122/libelf/gelf_getlib.c
+++ elfutils-0.122/libelf/gelf_getlib.c
@@ -86,7 +86,8 @@ gelf_getlib (data, ndx, dst)
/* The data is already in the correct form. Just make sure the
index is OK. */
@ -395,8 +379,8 @@ src/
__libelf_seterrno (ELF_E_INVALID_INDEX);
else
{
--- elfutils-0.120/libelf/gelf_getmove.c
+++ elfutils-0.120/libelf/gelf_getmove.c
--- elfutils-0.122/libelf/gelf_getmove.c
+++ elfutils-0.122/libelf/gelf_getmove.c
@@ -83,7 +83,8 @@ gelf_getmove (data, ndx, dst)
/* The data is already in the correct form. Just make sure the
@ -407,8 +391,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
goto out;
--- elfutils-0.120/libelf/gelf_getrela.c
+++ elfutils-0.120/libelf/gelf_getrela.c
--- elfutils-0.122/libelf/gelf_getrela.c
+++ elfutils-0.122/libelf/gelf_getrela.c
@@ -71,12 +71,6 @@ gelf_getrela (data, ndx, dst)
if (data_scn == NULL)
return NULL;
@ -442,8 +426,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
result = NULL;
--- elfutils-0.120/libelf/gelf_getrel.c
+++ elfutils-0.120/libelf/gelf_getrel.c
--- elfutils-0.122/libelf/gelf_getrel.c
+++ elfutils-0.122/libelf/gelf_getrel.c
@@ -71,12 +71,6 @@ gelf_getrel (data, ndx, dst)
if (data_scn == NULL)
return NULL;
@ -477,8 +461,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
result = NULL;
--- elfutils-0.120/libelf/gelf_getsym.c
+++ elfutils-0.120/libelf/gelf_getsym.c
--- elfutils-0.122/libelf/gelf_getsym.c
+++ elfutils-0.122/libelf/gelf_getsym.c
@@ -90,7 +90,8 @@ gelf_getsym (data, ndx, dst)
table entries has to be adopted. The user better has provided
a buffer where we can store the information. While copying the
@ -499,8 +483,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
goto out;
--- elfutils-0.120/libelf/gelf_getsyminfo.c
+++ elfutils-0.120/libelf/gelf_getsyminfo.c
--- elfutils-0.122/libelf/gelf_getsyminfo.c
+++ elfutils-0.122/libelf/gelf_getsyminfo.c
@@ -84,7 +84,8 @@ gelf_getsyminfo (data, ndx, dst)
/* The data is already in the correct form. Just make sure the
@ -511,8 +495,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
goto out;
--- elfutils-0.120/libelf/gelf_getsymshndx.c
+++ elfutils-0.120/libelf/gelf_getsymshndx.c
--- elfutils-0.122/libelf/gelf_getsymshndx.c
+++ elfutils-0.122/libelf/gelf_getsymshndx.c
@@ -90,7 +90,9 @@ gelf_getsymshndx (symdata, shndxdata, nd
section index table. */
if (likely (shndxdata_scn != NULL))
@ -544,8 +528,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
goto out;
--- elfutils-0.120/libelf/gelf_getversym.c
+++ elfutils-0.120/libelf/gelf_getversym.c
--- elfutils-0.122/libelf/gelf_getversym.c
+++ elfutils-0.122/libelf/gelf_getversym.c
@@ -92,7 +92,8 @@ gelf_getversym (data, ndx, dst)
/* The data is already in the correct form. Just make sure the
@ -556,8 +540,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
result = NULL;
--- elfutils-0.120/libelf/gelf_update_dyn.c
+++ elfutils-0.120/libelf/gelf_update_dyn.c
--- elfutils-0.122/libelf/gelf_update_dyn.c
+++ elfutils-0.122/libelf/gelf_update_dyn.c
@@ -71,12 +71,6 @@ gelf_update_dyn (data, ndx, src)
if (data == NULL)
return 0;
@ -591,8 +575,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
goto out;
--- elfutils-0.120/libelf/gelf_update_lib.c
+++ elfutils-0.120/libelf/gelf_update_lib.c
--- elfutils-0.122/libelf/gelf_update_lib.c
+++ elfutils-0.122/libelf/gelf_update_lib.c
@@ -68,12 +68,6 @@ gelf_update_lib (data, ndx, src)
if (data == NULL)
return 0;
@ -616,8 +600,8 @@ src/
__libelf_seterrno (ELF_E_INVALID_INDEX);
else
{
--- elfutils-0.120/libelf/gelf_update_move.c
+++ elfutils-0.120/libelf/gelf_update_move.c
--- elfutils-0.122/libelf/gelf_update_move.c
+++ elfutils-0.122/libelf/gelf_update_move.c
@@ -75,7 +75,7 @@ gelf_update_move (data, ndx, src)
assert (sizeof (GElf_Move) == sizeof (Elf64_Move));
@ -627,8 +611,8 @@ src/
|| unlikely ((ndx + 1) * sizeof (GElf_Move) > data_scn->d.d_size))
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
--- elfutils-0.120/libelf/gelf_update_rela.c
+++ elfutils-0.120/libelf/gelf_update_rela.c
--- elfutils-0.122/libelf/gelf_update_rela.c
+++ elfutils-0.122/libelf/gelf_update_rela.c
@@ -68,12 +68,6 @@ gelf_update_rela (Elf_Data *dst, int ndx
if (dst == NULL)
return 0;
@ -662,8 +646,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
goto out;
--- elfutils-0.120/libelf/gelf_update_rel.c
+++ elfutils-0.120/libelf/gelf_update_rel.c
--- elfutils-0.122/libelf/gelf_update_rel.c
+++ elfutils-0.122/libelf/gelf_update_rel.c
@@ -68,12 +68,6 @@ gelf_update_rel (Elf_Data *dst, int ndx,
if (dst == NULL)
return 0;
@ -697,8 +681,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
goto out;
--- elfutils-0.120/libelf/gelf_update_sym.c
+++ elfutils-0.120/libelf/gelf_update_sym.c
--- elfutils-0.122/libelf/gelf_update_sym.c
+++ elfutils-0.122/libelf/gelf_update_sym.c
@@ -72,12 +72,6 @@ gelf_update_sym (data, ndx, src)
if (data == NULL)
return 0;
@ -732,8 +716,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
goto out;
--- elfutils-0.120/libelf/gelf_update_syminfo.c
+++ elfutils-0.120/libelf/gelf_update_syminfo.c
--- elfutils-0.122/libelf/gelf_update_syminfo.c
+++ elfutils-0.122/libelf/gelf_update_syminfo.c
@@ -72,12 +72,6 @@ gelf_update_syminfo (data, ndx, src)
if (data == NULL)
return 0;
@ -757,8 +741,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
goto out;
--- elfutils-0.120/libelf/gelf_update_symshndx.c
+++ elfutils-0.120/libelf/gelf_update_symshndx.c
--- elfutils-0.122/libelf/gelf_update_symshndx.c
+++ elfutils-0.122/libelf/gelf_update_symshndx.c
@@ -77,12 +77,6 @@ gelf_update_symshndx (symdata, shndxdata
if (symdata == NULL)
return 0;
@ -792,8 +776,8 @@ src/
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
goto out;
--- elfutils-0.120/libelf/gelf_update_versym.c
+++ elfutils-0.120/libelf/gelf_update_versym.c
--- elfutils-0.122/libelf/gelf_update_versym.c
+++ elfutils-0.122/libelf/gelf_update_versym.c
@@ -75,7 +75,7 @@ gelf_update_versym (data, ndx, src)
assert (sizeof (GElf_Versym) == sizeof (Elf64_Versym));
@ -803,11 +787,11 @@ src/
|| unlikely ((ndx + 1) * sizeof (GElf_Versym) > data_scn->d.d_size))
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
--- elfutils-0.120/libelf/libelfP.h
+++ elfutils-0.120/libelf/libelfP.h
@@ -569,4 +569,13 @@ extern uint32_t __libelf_crc32 (uint32_t
--- elfutils-0.122/libelf/libelfP.h
+++ elfutils-0.122/libelf/libelfP.h
@@ -558,4 +558,13 @@ extern uint32_t __libelf_crc32 (uint32_t
} \
} while (0)
#endif
+/* Convenience macro. Assumes int NDX and TYPE with size at least
+ 2 bytes. */
@ -819,8 +803,8 @@ src/
+#endif
+
#endif /* libelfP.h */
--- elfutils-0.120/src/elflint.c
+++ elfutils-0.120/src/elflint.c
--- elfutils-0.122/src/elflint.c
+++ elfutils-0.122/src/elflint.c
@@ -123,6 +123,9 @@ static uint32_t shstrndx;
/* Array to count references in section groups. */
static int *scnref;
@ -892,16 +876,21 @@ src/
}
if (sym->st_shndx == SHN_XINDEX)
@@ -970,7 +980,7 @@ is_rel_dyn (Ebl *ebl, const GElf_Ehdr *e
@@ -968,9 +978,11 @@ is_rel_dyn (Ebl *ebl, const GElf_Ehdr *e
{
GElf_Shdr rcshdr_mem;
const GElf_Shdr *rcshdr = gelf_getshdr (scn, &rcshdr_mem);
assert (rcshdr != NULL);
- assert (rcshdr != NULL);
- if (rcshdr->sh_type == SHT_DYNAMIC)
+ if (rcshdr == NULL)
+ break;
+
+ if (rcshdr->sh_type == SHT_DYNAMIC && rcshdr->sh_entsize)
{
/* Found the dynamic section. Look through it. */
Elf_Data *d = elf_getdata (scn, NULL);
@@ -980,14 +990,17 @@ is_rel_dyn (Ebl *ebl, const GElf_Ehdr *e
@@ -980,7 +992,9 @@ is_rel_dyn (Ebl *ebl, const GElf_Ehdr *e
{
GElf_Dyn dyn_mem;
GElf_Dyn *dyn = gelf_getdyn (d, cnt, &dyn_mem);
@ -912,16 +901,18 @@ src/
if (dyn->d_tag == DT_RELCOUNT)
{
/* Found it. One last check: does the number
specified number of relative relocations exceed
the total number of relocations? */
@@ -994,7 +1008,9 @@ section [%2d] '%s': DT_RELCOUNT used for
/* Does the number specified number of relative
relocations exceed the total number of
relocations? */
- if (dyn->d_un.d_val > shdr->sh_size / shdr->sh_entsize)
+ if (shdr->sh_entsize
+ && dyn->d_un.d_val > shdr->sh_size / shdr->sh_entsize)
+ if (shdr->sh_entsize != 0
+ && dyn->d_un.d_val > (shdr->sh_size
+ / shdr->sh_entsize))
ERROR (gettext ("\
section [%2d] '%s': DT_RELCOUNT value %d too high for this section\n"),
idx, section_name (ebl, idx),
@@ -1062,7 +1075,8 @@ section [%2d] '%s': no relocations for m
@@ -1154,7 +1170,8 @@ section [%2d] '%s': no relocations for m
}
}
@ -931,7 +922,7 @@ src/
ERROR (gettext (reltype == ELF_T_RELA ? "\
section [%2d] '%s': section entry size does not match ElfXX_Rela\n" : "\
section [%2d] '%s': section entry size does not match ElfXX_Rel\n"),
@@ -1280,7 +1294,8 @@ check_rela (Ebl *ebl, GElf_Ehdr *ehdr, G
@@ -1376,7 +1393,8 @@ check_rela (Ebl *ebl, GElf_Ehdr *ehdr, G
Elf_Data *symdata = elf_getdata (symscn, NULL);
enum load_state state = state_undecided;
@ -941,7 +932,7 @@ src/
{
GElf_Rela rela_mem;
GElf_Rela *rela = gelf_getrela (data, cnt, &rela_mem);
@@ -1330,7 +1345,8 @@ check_rel (Ebl *ebl, GElf_Ehdr *ehdr, GE
@@ -1426,7 +1444,8 @@ check_rel (Ebl *ebl, GElf_Ehdr *ehdr, GE
Elf_Data *symdata = elf_getdata (symscn, NULL);
enum load_state state = state_undecided;
@ -951,7 +942,7 @@ src/
{
GElf_Rel rel_mem;
GElf_Rel *rel = gelf_getrel (data, cnt, &rel_mem);
@@ -1432,7 +1448,8 @@ section [%2d] '%s': referenced as string
@@ -1528,7 +1547,8 @@ section [%2d] '%s': referenced as string
shdr->sh_link, section_name (ebl, shdr->sh_link),
idx, section_name (ebl, idx));
@ -961,7 +952,7 @@ src/
ERROR (gettext ("\
section [%2d] '%s': section entry size does not match ElfXX_Dyn\n"),
idx, section_name (ebl, idx));
@@ -1442,7 +1459,7 @@ section [%2d] '%s': section entry size d
@@ -1538,7 +1558,7 @@ section [%2d] '%s': section entry size d
idx, section_name (ebl, idx));
bool non_null_warned = false;
@ -970,7 +961,7 @@ src/
{
GElf_Dyn dyn_mem;
GElf_Dyn *dyn = gelf_getdyn (data, cnt, &dyn_mem);
@@ -1633,6 +1650,8 @@ section [%2d] '%s': entry size does not
@@ -1756,6 +1776,8 @@ section [%2d] '%s': entry size does not
idx, section_name (ebl, idx));
if (symshdr != NULL
@ -979,7 +970,7 @@ src/
&& (shdr->sh_size / shdr->sh_entsize
< symshdr->sh_size / symshdr->sh_entsize))
ERROR (gettext ("\
@@ -1659,6 +1678,12 @@ section [%2d] '%s': extended section ind
@@ -1782,6 +1804,12 @@ section [%2d] '%s': extended section ind
}
Elf_Data *data = elf_getdata (elf_getscn (ebl->elf, idx), NULL);
@ -992,41 +983,95 @@ src/
if (*((Elf32_Word *) data->d_buf) != 0)
ERROR (gettext ("symbol 0 should have zero extended section index\n"));
@@ -1739,23 +1764,30 @@ section [%2d] '%s': hash table section i
idx, section_name (ebl, idx), (long int) shdr->sh_size,
(long int) ((2 + nbucket + nchain) * shdr->sh_entsize));
@@ -1824,7 +1852,7 @@ section [%2d] '%s': hash table section i
size_t maxidx = nchain;
- if (symshdr != NULL)
+ if (symshdr != NULL && symshdr->sh_entsize)
+ if (symshdr != NULL && symshdr->sh_entsize != 0)
{
size_t symsize = symshdr->sh_size / symshdr->sh_entsize;
@@ -1835,18 +1863,28 @@ section [%2d] '%s': hash table section i
maxidx = symsize;
}
+ Elf32_Word *buf = (Elf32_Word *) data->d_buf;
+ Elf32_Word *end = (Elf32_Word *) ((char *) data->d_buf + shdr->sh_size);
size_t cnt;
+ Elf32_Word *buf, *end;
if (nchain < symshdr->sh_size / symshdr->sh_entsize)
ERROR (gettext ("section [%2d] '%s': chain array not large enough\n"),
idx, section_name (ebl, idx));
+ buf = ((Elf32_Word *) data->d_buf) + 2;
+ end = (Elf32_Word *) ((char *) data->d_buf + shdr->sh_size);
for (cnt = 2; cnt < 2 + nbucket; ++cnt)
- if (((Elf32_Word *) data->d_buf)[cnt] >= symsize)
+ if (buf >= end)
+ return;
+ else if (*buf++ >= symsize)
ERROR (gettext ("\
- if (((Elf32_Word *) data->d_buf)[cnt] >= maxidx)
- ERROR (gettext ("\
+ {
+ if (buf + cnt >= end)
+ break;
+ else if (buf[cnt] >= maxidx)
+ ERROR (gettext ("\
section [%2d] '%s': hash bucket reference %zu out of bounds\n"),
idx, section_name (ebl, idx), cnt - 2);
- idx, section_name (ebl, idx), cnt - 2);
+ idx, section_name (ebl, idx), cnt - 2);
+ }
for (; cnt < 2 + nbucket + nchain; ++cnt)
- if (((Elf32_Word *) data->d_buf)[cnt] >= symsize)
+ if (buf >= end)
+ return;
+ else if (*buf++ >= symsize)
ERROR (gettext ("\
- if (((Elf32_Word *) data->d_buf)[cnt] >= maxidx)
- ERROR (gettext ("\
+ {
+ if (buf + cnt >= end)
+ break;
+ else if (buf[cnt] >= maxidx)
+ ERROR (gettext ("\
section [%2d] '%s': hash chain reference %zu out of bounds\n"),
idx, section_name (ebl, idx), cnt - 2 - nbucket);
@@ -2097,8 +2129,9 @@ section [%2d] '%s' refers in sh_link to
- idx, section_name (ebl, idx), cnt - 2 - nbucket);
+ idx, section_name (ebl, idx), cnt - 2 - nbucket);
+ }
}
@@ -1876,18 +1914,28 @@ section [%2d] '%s': hash table section i
maxidx = symsize;
}
+ Elf64_Xword *buf = (Elf64_Xword *) data->d_buf;
+ Elf64_Xword *end = (Elf64_Xword *) ((char *) data->d_buf + shdr->sh_size);
size_t cnt;
for (cnt = 2; cnt < 2 + nbucket; ++cnt)
- if (((Elf64_Xword *) data->d_buf)[cnt] >= maxidx)
- ERROR (gettext ("\
+ {
+ if (buf + cnt >= end)
+ break;
+ else if (buf[cnt] >= maxidx)
+ ERROR (gettext ("\
section [%2d] '%s': hash bucket reference %zu out of bounds\n"),
- idx, section_name (ebl, idx), cnt - 2);
+ idx, section_name (ebl, idx), cnt - 2);
+ }
for (; cnt < 2 + nbucket + nchain; ++cnt)
- if (((Elf64_Xword *) data->d_buf)[cnt] >= maxidx)
- ERROR (gettext ("\
+ {
+ if (buf + cnt >= end)
+ break;
+ else if (buf[cnt] >= maxidx)
+ ERROR (gettext ("\
section [%2d] '%s': hash chain reference %" PRIu64 " out of bounds\n"),
- idx, section_name (ebl, idx), (uint64_t) (cnt - 2 - nbucket));
+ idx, section_name (ebl, idx), (uint64_t) cnt - 2 - nbucket);
+ }
}
@@ -1912,7 +1960,7 @@ section [%2d] '%s': bitmask size not pow
if (shdr->sh_size < (4 + bitmask_words + nbuckets) * sizeof (Elf32_Word))
{
ERROR (gettext ("\
-section [%2d] '%s': hash table section is too small (is %ld, expected at least%ld)\n"),
+section [%2d] '%s': hash table section is too small (is %ld, expected at least %ld)\n"),
idx, section_name (ebl, idx), (long int) shdr->sh_size,
(long int) ((4 + bitmask_words + nbuckets) * sizeof (Elf32_Word)));
return;
@@ -2430,8 +2478,9 @@ section [%2d] '%s' refers in sh_link to
/* The number of elements in the version symbol table must be the
same as the number of symbols. */
@ -1038,7 +1083,7 @@ src/
ERROR (gettext ("\
section [%2d] '%s' has different number of entries than symbol table [%2d] '%s'\n"),
idx, section_name (ebl, idx),
@@ -3002,6 +3035,8 @@ phdr[%d]: no note entries defined for th
@@ -3336,6 +3385,8 @@ phdr[%d]: no note entries defined for th
return;
char *notemem = gelf_rawchunk (ebl->elf, phdr->p_offset, phdr->p_filesz);
@ -1047,8 +1092,8 @@ src/
/* ELF64 files often use note section entries in the 32-bit format.
The p_align field is set to 8 in case the 64-bit format is used.
--- elfutils-0.120/src/readelf.c
+++ elfutils-0.120/src/readelf.c
--- elfutils-0.122/src/readelf.c
+++ elfutils-0.122/src/readelf.c
@@ -958,6 +958,8 @@ handle_scngrp (Ebl *ebl, Elf_Scn *scn, G
Elf32_Word *grpref = (Elf32_Word *) data->d_buf;
@ -1213,9 +1258,9 @@ src/
/* Now we can finally look at the actual contents of this section. */
for (unsigned int cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt)
@@ -2353,7 +2375,17 @@ handle_hash (Ebl *ebl)
Elf32_Word *bucket = &((Elf32_Word *) data->d_buf)[2];
Elf32_Word *chain = &((Elf32_Word *) data->d_buf)[2 + nbucket];
@@ -2330,7 +2352,17 @@ print_hash_info (Ebl *ebl, Elf_Scn *scn,
for (Elf32_Word cnt = 0; cnt < nbucket; ++cnt)
++counts[lengths[cnt]];
- GElf_Shdr glink;
+ GElf_Shdr glink_mem;
@ -1226,25 +1271,24 @@ src/
+ {
+ error (0, 0, gettext ("invalid sh_link value in section %Zu"),
+ elf_ndxscn (scn));
+ continue;
+ return;
+ }
+
printf (ngettext ("\
\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",
"\
@@ -2366,10 +2398,7 @@ handle_hash (Ebl *ebl)
@@ -2343,9 +2375,7 @@ print_hash_info (Ebl *ebl, Elf_Scn *scn,
shdr->sh_addr,
shdr->sh_offset,
(unsigned int) shdr->sh_link,
- elf_strptr (ebl->elf, shstrndx,
- gelf_getshdr (elf_getscn (ebl->elf,
- shdr->sh_link),
- gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link),
- &glink)->sh_name));
+ elf_strptr (ebl->elf, shstrndx, glink->sh_name));
uint32_t *lengths = (uint32_t *) xcalloc (nbucket,
sizeof (uint32_t));
@@ -3510,6 +3539,16 @@ print_debug_aranges_section (Ebl *ebl __
if (extrastr != NULL)
fputs (extrastr, stdout);
@@ -3654,6 +3684,16 @@ print_debug_aranges_section (Ebl *ebl __
return;
}
@ -1261,8 +1305,8 @@ src/
printf (ngettext ("\
\nDWARF section '%s' at offset %#" PRIx64 " contains %zu entry:\n",
"\
--- elfutils-0.120/src/strip.c
+++ elfutils-0.120/src/strip.c
--- elfutils-0.122/src/strip.c
+++ elfutils-0.122/src/strip.c
@@ -412,6 +412,7 @@ handle_elf (int fd, Elf *elf, const char
Elf_Data debuglink_crc_data;
bool any_symtab_changes = false;
@ -1322,10 +1366,9 @@ src/
for (inner = 1;
inner < shdr_info[cnt].data->d_size / sizeof (Elf32_Word);
++inner)
- shdr_info[grpref[inner]].group_idx = cnt;
+ {
+ if (grpref[inner] < shnum)
+ shdr_info[grpref[inner]].group_idx = cnt;
shdr_info[grpref[inner]].group_idx = cnt;
+ else
+ goto illformed;
+ }
@ -1350,25 +1393,24 @@ src/
if (shdr_info[shdr_info[cnt].group_idx].idx == 0)
{
@@ -708,10 +722,14 @@ handle_elf (int fd, Elf *elf, const char
@@ -708,11 +722,15 @@ handle_elf (int fd, Elf *elf, const char
{
/* If a relocation section is marked as being removed make
sure the section it is relocating is removed, too. */
- if ((shdr_info[cnt].shdr.sh_type == SHT_REL
- || shdr_info[cnt].shdr.sh_type == SHT_RELA)
- && shdr_info[shdr_info[cnt].shdr.sh_info].idx != 0)
- shdr_info[cnt].idx = 1;
+ if (shdr_info[cnt].shdr.sh_type == SHT_REL
+ || shdr_info[cnt].shdr.sh_type == SHT_RELA)
|| shdr_info[cnt].shdr.sh_type == SHT_RELA)
- && shdr_info[shdr_info[cnt].shdr.sh_info].idx != 0)
+ {
+ if (shdr_info[cnt].shdr.sh_info >= shnum)
+ goto illformed;
+ else if (shdr_info[shdr_info[cnt].shdr.sh_info].idx != 0)
+ shdr_info[cnt].idx = 1;
+ }
shdr_info[cnt].idx = 1;
}
+ }
if (shdr_info[cnt].idx == 1)
{
@@ -737,7 +755,7 @@ handle_elf (int fd, Elf *elf, const char
if (shdr_info[cnt].symtab_idx != 0
&& shdr_info[shdr_info[cnt].symtab_idx].data == NULL)
@ -1388,26 +1430,25 @@ src/
if (shdr_info[scnidx].idx == 0)
{
/* Mark this section as used. */
@@ -808,11 +829,15 @@ handle_elf (int fd, Elf *elf, const char
@@ -808,12 +829,16 @@ handle_elf (int fd, Elf *elf, const char
}
/* Handle references through sh_info. */
- if (SH_INFO_LINK_P (&shdr_info[cnt].shdr)
- && shdr_info[shdr_info[cnt].shdr.sh_info].idx == 0)
+ if (SH_INFO_LINK_P (&shdr_info[cnt].shdr))
{
- shdr_info[shdr_info[cnt].shdr.sh_info].idx = 1;
- changes |= shdr_info[cnt].shdr.sh_info < cnt;
+ {
+ if (shdr_info[cnt].shdr.sh_info >= shnum)
+ goto illformed;
+ else if ( shdr_info[shdr_info[cnt].shdr.sh_info].idx == 0)
+ {
+ shdr_info[shdr_info[cnt].shdr.sh_info].idx = 1;
+ changes |= shdr_info[cnt].shdr.sh_info < cnt;
+ }
{
shdr_info[shdr_info[cnt].shdr.sh_info].idx = 1;
changes |= shdr_info[cnt].shdr.sh_info < cnt;
}
+ }
/* Mark the section as investigated. */
shdr_info[cnt].idx = 2;
@@ -912,7 +937,7 @@ handle_elf (int fd, Elf *elf, const char
error (EXIT_FAILURE, 0, gettext ("while generating output file: %s"),
elf_errmsg (-1));
@ -1444,14 +1485,13 @@ src/
/* Finalize the string table and fill in the correct indices in the
section headers. */
@@ -1095,21 +1120,21 @@ handle_elf (int fd, Elf *elf, const char
@@ -1095,20 +1120,20 @@ handle_elf (int fd, Elf *elf, const char
shndxdata = elf_getdata (shdr_info[shdr_info[cnt].symtab_idx].scn,
NULL);
- assert ((versiondata->d_size / sizeof (Elf32_Word))
- >= shdr_info[cnt].data->d_size / elsize);
+ elf_assert ((versiondata->d_size / sizeof (Elf32_Word))
+ >= shdr_info[cnt].data->d_size / elsize);
>= shdr_info[cnt].data->d_size / elsize);
}
if (shdr_info[cnt].version_idx != 0)
@ -1465,12 +1505,10 @@ src/
NULL);
- assert ((versiondata->d_size / sizeof (GElf_Versym))
- >= shdr_info[cnt].data->d_size / elsize);
+ elf_assert ((versiondata->d_size / sizeof (GElf_Versym))
+ >= shdr_info[cnt].data->d_size / elsize);
>= shdr_info[cnt].data->d_size / elsize);
}
shdr_info[cnt].newsymidx
@@ -1163,7 +1188,7 @@ handle_elf (int fd, Elf *elf, const char
sec = shdr_info[sym->st_shndx].idx;
else
@ -1512,17 +1550,15 @@ src/
size_t hidx = elf_hash (name) % nbucket;
if (bucket[hidx] == 0)
@@ -1394,8 +1419,8 @@ handle_elf (int fd, Elf *elf, const char
@@ -1394,7 +1419,7 @@ handle_elf (int fd, Elf *elf, const char
else
{
/* Alpha and S390 64-bit use 64-bit SHT_HASH entries. */
- assert (shdr_info[cnt].shdr.sh_entsize
- == sizeof (Elf64_Xword));
+ elf_assert (shdr_info[cnt].shdr.sh_entsize
+ == sizeof (Elf64_Xword));
== sizeof (Elf64_Xword));
Elf64_Xword *bucket = (Elf64_Xword *) hashd->d_buf;
@@ -1428,11 +1453,11 @@ handle_elf (int fd, Elf *elf, const char
{
GElf_Sym sym_mem;

10
elfutils.spec
View File

@ -1,5 +1,5 @@
%define version 0.122
%define release 1
%define eu_version 0.122
%define eu_release 1
%if %{?_with_compat:1}%{!?_with_compat:0}
%define compat 1
@ -9,11 +9,11 @@
Summary: A collection of utilities and DSOs to handle compiled objects.
Name: elfutils
Version: %{version}
Version: %{eu_version}
%if !%{compat}
Release: %{release}
Release: %{eu_release}%{?dist}
%else
Release: 0.%{release}.1
Release: 0.%{eu_release}.1
%endif
License: GPL
Group: Development/Tools