diff options
| author | Roland McGrath <mcgrathr@google.com> | 2014-01-09 10:13:10 -0800 |
|---|---|---|
| committer | Roland McGrath <mcgrathr@google.com> | 2014-01-09 11:22:59 -0800 |
| commit | e2e6193d65a20e6b7fccba288e5d1bc45b78d194 (patch) | |
| tree | 234462e90dba8ec8d644584b45bb472b08b2dcc5 | |
| parent | 0000e5ccd8615d632ac6ddc831cd5d3af8084737 (diff) | |
| download | binutils-gdb-e2e6193d65a20e6b7fccba288e5d1bc45b78d194.tar.gz | |
Fix buffer underrun in i386-dis.c.
opcodes/
* i386-dis.c (print_insn): Do not touch all_prefixes[-1] when
last_rex_prefix is -1.
| -rw-r--r-- | opcodes/ChangeLog | 6 | ||||
| -rw-r--r-- | opcodes/i386-dis.c | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 8f080b6d939..4d8b86602eb 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,9 @@ +2014-01-09 Bradley Nelson <bradnelson@google.com> + Roland McGrath <mcgrathr@google.com> + + * i386-dis.c (print_insn): Do not touch all_prefixes[-1] when + last_rex_prefix is -1. + 2014-01-08 H.J. Lu <hongjiu.lu@intel.com> * i386-gen.c (process_copyright): Update copyright year to 2014. diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index 2c28e52cc89..f2ec8c4947e 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -12645,7 +12645,7 @@ print_insn (bfd_vma pc, disassemble_info *info) } /* Check if the REX prefix is used. */ - if (rex_ignored == 0 && (rex ^ rex_used) == 0) + if (rex_ignored == 0 && (rex ^ rex_used) == 0 && last_rex_prefix >= 0) all_prefixes[last_rex_prefix] = 0; /* Check if the SEG prefix is used. */ |