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| author | Nick Clifton <nickc@redhat.com> | 2018-05-08 12:51:06 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2018-05-08 12:51:06 +0100 |
| commit | 95a6d23566165208853a68d9cd3c6eedca840ec6 (patch) | |
| tree | 18cb44eee880d8c8d20b2cd2117f961603d585f1 /bfd/elf.c | |
| parent | a87a64780fde9dc8d1c3af8eda93fc1b878cd3cf (diff) | |
| download | binutils-95a6d23566165208853a68d9cd3c6eedca840ec6.zip binutils-95a6d23566165208853a68d9cd3c6eedca840ec6.tar.gz binutils-95a6d23566165208853a68d9cd3c6eedca840ec6.tar.bz2 | |
Prevent a memory exhaustion failure when running objdump on a fuzzed input file with corrupt string and attribute sections.
PR 22809
* elf.c (bfd_elf_get_str_section): Check for an excessively large
string section.
* elf-attrs.c (_bfd_elf_parse_attributes): Issue an error if the
attribute section is larger than the size of the file.
Diffstat (limited to 'bfd/elf.c')
| -rw-r--r-- | bfd/elf.c | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -298,6 +298,7 @@ bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) /* Allocate and clear an extra byte at the end, to prevent crashes in case the string table is not terminated. */ if (shstrtabsize + 1 <= 1 + || shstrtabsize > bfd_get_file_size (abfd) || bfd_seek (abfd, offset, SEEK_SET) != 0 || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL) shstrtab = NULL; |