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| author | Nick Clifton <nickc@redhat.com> | 2021-04-30 14:31:03 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2021-04-30 14:31:03 +0100 |
| commit | d1fbc3ba09fb2e79acf633df29ccbe9285624419 (patch) | |
| tree | 0edbf62a9288e98c418fa70d4ca51fa047aec9f5 /bfd | |
| parent | 9f84cb380e8403ad4f1184fd09af475c17fd8835 (diff) | |
| download | gdb-d1fbc3ba09fb2e79acf633df29ccbe9285624419.zip gdb-d1fbc3ba09fb2e79acf633df29ccbe9285624419.tar.gz gdb-d1fbc3ba09fb2e79acf633df29ccbe9285624419.tar.bz2 | |
Fix illegal memory access parsing a corrupt MACH-O format file.
PR 27801
* mach-o.c (bfd_mach_o_core_fetch_environment): Use bfd_get_32 to
read 32-bit value.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/mach-o.c | 3 |
2 files changed, 8 insertions, 1 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index cd9b1b3..c5a617c 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,11 @@ 2021-04-30 Nick Clifton <nickc@redhat.com> + PR 27801 + * mach-o.c (bfd_mach_o_core_fetch_environment): Use bfd_get_32 to + read 32-bit value. + +2021-04-30 Nick Clifton <nickc@redhat.com> + PR 27799 * elf32-xtensa.c (elf_xtensa_grok_prstatus): Check for core notes that are too small. diff --git a/bfd/mach-o.c b/bfd/mach-o.c index 60121c4..ff18ded 100644 --- a/bfd/mach-o.c +++ b/bfd/mach-o.c @@ -5931,7 +5931,8 @@ bfd_mach_o_core_fetch_environment (bfd *abfd, { unsigned long val; - val = *((unsigned long *) (buf + size - offset)); + val = bfd_get_32(abfd, buf + size - offset); + if (! found_nonnull) { if (val != 0) |