diff options
| author | Mark Wielaard <[email protected]> | 2014-12-31 00:40:02 +0100 |
|---|---|---|
| committer | Mark Wielaard <[email protected]> | 2015-01-15 14:03:08 +0100 |
| commit | d973206f716d441634f3b937be9c8c5b8b6250db (patch) | |
| tree | 363acb67f594df25cddb80326b702c088235d7b5 /backends | |
| parent | 0a545e678f2c0605ba050b4f72080572ac7c8470 (diff) | |
backends: Check sh_entsize is not zero in ppc_symbol.c (find_dyn_got).
Found with afl-fuzz.
Signed-off-by: Mark Wielaard <[email protected]>
Diffstat (limited to 'backends')
| -rw-r--r-- | backends/ChangeLog | 4 | ||||
| -rw-r--r-- | backends/ppc_symbol.c | 3 |
2 files changed, 6 insertions, 1 deletions
diff --git a/backends/ChangeLog b/backends/ChangeLog index e800d16b..57e1b8ee 100644 --- a/backends/ChangeLog +++ b/backends/ChangeLog @@ -1,3 +1,7 @@ +2014-12-30 Mark Wielaard <[email protected]> + + * ppc_symbol.c (find_dyn_got): Check sh_entsize is not zero. + 2014-12-18 Ulrich Drepper <[email protected]> * Makefile.am: Suppress output of textrel_check command. diff --git a/backends/ppc_symbol.c b/backends/ppc_symbol.c index c17ab374..733114b6 100644 --- a/backends/ppc_symbol.c +++ b/backends/ppc_symbol.c @@ -98,7 +98,8 @@ find_dyn_got (Elf *elf, GElf_Addr *addr) GElf_Shdr shdr_mem; GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); Elf_Data *data = elf_getdata (scn, NULL); - if (shdr != NULL && shdr->sh_type == SHT_DYNAMIC && data != NULL) + if (shdr != NULL && shdr->sh_type == SHT_DYNAMIC && data != NULL + && shdr->sh_entsize != 0) for (unsigned int j = 0; j < shdr->sh_size / shdr->sh_entsize; ++j) { GElf_Dyn dyn_mem; |