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| author | Nick Clifton <nickc@redhat.com> | 2017-04-03 11:01:45 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2017-04-03 11:01:45 +0100 |
| commit | f32ba72991d2406b21ab17edc234a2f3fa7fb23d (patch) | |
| tree | 2c06bd2a0d6a35f01e8e41abde4bb8d309d391c1 /binutils | |
| parent | 12bfb8fec326e847f6300874ca656e47ee027f5d (diff) | |
| download | gdb-f32ba72991d2406b21ab17edc234a2f3fa7fb23d.zip gdb-f32ba72991d2406b21ab17edc234a2f3fa7fb23d.tar.gz gdb-f32ba72991d2406b21ab17edc234a2f3fa7fb23d.tar.bz2 | |
readelf: Update check for invalid word offsets in ARM unwind information.
PR binutils/21343
* readelf.c (get_unwind_section_word): Fix snafu checking for
invalid word offsets in ARM unwind information.
Diffstat (limited to 'binutils')
| -rw-r--r-- | binutils/ChangeLog | 6 | ||||
| -rw-r--r-- | binutils/readelf.c | 6 |
2 files changed, 9 insertions, 3 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog index eb83611..dee35e5 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,3 +1,9 @@ +2017-04-03 Nick Clifton <nickc@redhat.com> + + PR binutils/21343 + * readelf.c (get_unwind_section_word): Fix snafu checking for + invalid word offsets in ARM unwind information. + 2017-03-31 Pip Cet <pipcet@gmail.com> * NEWS: Use "WebAssembly" consistently. diff --git a/binutils/readelf.c b/binutils/readelf.c index 31a519b..47736d6 100644 --- a/binutils/readelf.c +++ b/binutils/readelf.c @@ -8053,9 +8053,9 @@ get_unwind_section_word (struct arm_unw_aux_info * aux, return FALSE; /* If the offset is invalid then fail. */ - if (word_offset > (sec->sh_size - 4) - /* PR 18879 */ - || (sec->sh_size < 5 && word_offset >= sec->sh_size) + if (/* PR 21343 *//* PR 18879 */ + sec->sh_size < 4 + || word_offset > (sec->sh_size - 4) || ((bfd_signed_vma) word_offset) < 0) return FALSE; |