diff options
Diffstat (limited to 'libelf/elf32_updatenull.c')
| -rw-r--r-- | libelf/elf32_updatenull.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libelf/elf32_updatenull.c b/libelf/elf32_updatenull.c index d873a309..a0de80e1 100644 --- a/libelf/elf32_updatenull.c +++ b/libelf/elf32_updatenull.c @@ -202,6 +202,11 @@ __elfw2(LIBELFBITS,updatenull_wrlock) (Elf *elf, int *change_bop, size_t shnum) assert (shdr != NULL); ElfW2(LIBELFBITS,Word) sh_entsize = shdr->sh_entsize; ElfW2(LIBELFBITS,Word) sh_align = shdr->sh_addralign ?: 1; + if (unlikely (! powerof2 (sh_align))) + { + __libelf_seterrno (ELF_E_INVALID_ALIGN); + return -1; + } /* Set the sh_entsize value if we can reliably detect it. */ switch (shdr->sh_type) |