Found with afl-fuzz. Signed-off-by: Mark Wielaard <[email protected]> --- backends/ChangeLog | 4 ++++ backends/ppc_symbol.c | 3 ++- 2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/backends/ChangeLog b/backends/ChangeLog index e800d16..57e1b8e 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 c17ab37..733114b 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; -- 2.1.0
