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| author | Nick Clifton <nickc@redhat.com> | 2017-06-26 15:25:08 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2017-06-26 15:25:08 +0100 |
| commit | cfd14a500e0485374596234de4db10e88ebc7618 (patch) | |
| tree | 5627cf743e8fc9646606e13bd6227fe959636bd5 /bfd/elf32-v850.c | |
| parent | 0602cdad745472ed2561d8096a4bb021c8d0301d (diff) | |
| download | gdb-cfd14a500e0485374596234de4db10e88ebc7618.zip gdb-cfd14a500e0485374596234de4db10e88ebc7618.tar.gz gdb-cfd14a500e0485374596234de4db10e88ebc7618.tar.bz2 | |
Fix address violations when atempting to parse fuzzed binaries.
PR binutils/21665
bfd * opncls.c (get_build_id): Check that the section is beig enough
to contain the whole note.
* compress.c (bfd_get_full_section_contents): Check for and reject
a section whoes size is greater than the size of the entire file.
* elf32-v850.c (v850_elf_copy_notes): Allow for the ouput to not
contain a notes section.
binutils* objdump.c (disassemble_section): Skip any section that is bigger
than the entire file.
Diffstat (limited to 'bfd/elf32-v850.c')
| -rw-r--r-- | bfd/elf32-v850.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/bfd/elf32-v850.c b/bfd/elf32-v850.c index 0e9ed5f..8db7507 100644 --- a/bfd/elf32-v850.c +++ b/bfd/elf32-v850.c @@ -2450,7 +2450,9 @@ v850_elf_copy_notes (bfd *ibfd, bfd *obfd) BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont)); if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL) - BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont)); + /* If the output is being stripped then it is possible for + the notes section to disappear. In this case do nothing. */ + return; /* Copy/overwrite notes from the input to the output. */ memcpy (ocont, icont, bfd_section_size (obfd, onotes)); |