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| author | Max Filippov <jcmvbkbc@gmail.com> | 2017-08-02 10:38:09 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2017-08-02 10:38:09 +0100 |
| commit | d84ed528d4817b0ff854006b65a9f6ec75f0407a (patch) | |
| tree | 96d049d8b0b4e453a5fbf82c190751d3e3d8769e | |
| parent | 75800d2cd6a6cea6071dcf8f0c2ea871abeeaf99 (diff) | |
| download | binutils-gdb-d84ed528d4817b0ff854006b65a9f6ec75f0407a.tar.gz | |
Fix potential illegal memory access in Xtensa port.
* xtensa-isa.c (xtensa_isa_init): Don't update lookup table
entries for sysregs with negative indices.
| -rw-r--r-- | bfd/ChangeLog | 5 | ||||
| -rw-r--r-- | bfd/xtensa-isa.c | 3 |
2 files changed, 7 insertions, 1 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index d7d53d6022f..fd93c306b61 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,8 @@ +2017-08-02 Max Filippov <jcmvbkbc@gmail.com> + + * xtensa-isa.c (xtensa_isa_init): Don't update lookup table + entries for sysregs with negative indices. + 2017-08-01 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * elf32-s390.c (elf_s390_finish_dynamic_sections): Skip if it diff --git a/bfd/xtensa-isa.c b/bfd/xtensa-isa.c index 8da75bea810..8c6ee88fdea 100644 --- a/bfd/xtensa-isa.c +++ b/bfd/xtensa-isa.c @@ -292,7 +292,8 @@ xtensa_isa_init (xtensa_isa_status *errno_p, char **error_msg_p) xtensa_sysreg_internal *sreg = &isa->sysregs[n]; is_user = sreg->is_user; - isa->sysreg_table[is_user][sreg->number] = n; + if (sreg->number >= 0) + isa->sysreg_table[is_user][sreg->number] = n; } /* Set up the interface lookup table. */ |