diff options
Diffstat (limited to 'libelf/elf_begin.c')
| -rw-r--r-- | libelf/elf_begin.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libelf/elf_begin.c b/libelf/elf_begin.c index 43828c9a..32648c15 100644 --- a/libelf/elf_begin.c +++ b/libelf/elf_begin.c @@ -88,6 +88,13 @@ get_shnum (void *map_address, unsigned char *e_ident, int fildes, } ehdr_mem; bool is32 = e_ident[EI_CLASS] == ELFCLASS32; + if ((is32 && maxsize < sizeof (Elf32_Ehdr)) + || (!is32 && maxsize < sizeof (Elf64_Ehdr))) + { + __libelf_seterrno (ELF_E_INVALID_ELF); + return (size_t) -1l; + } + /* Make the ELF header available. */ if (e_ident[EI_DATA] == MY_ELFDATA && (ALLOW_UNALIGNED |