diff options
| author | Adam Borowski | 2016-04-27 11:35:31 +0200 |
|---|---|---|
| committer | Ingo Molnar | 2016-04-28 10:20:25 +0200 |
| commit | 0a25556f84d5f79e68e9502bb1f32a43377ab2bf (patch) | |
| tree | aa095915827dd3996e66efa4c968c5842d72c35a /kernel/events | |
| parent | perf/core: Make sysctl_perf_cpu_time_max_percent conform to documentation (diff) | |
| download | kernel-qcow2-linux-0a25556f84d5f79e68e9502bb1f32a43377ab2bf.tar.gz kernel-qcow2-linux-0a25556f84d5f79e68e9502bb1f32a43377ab2bf.tar.xz kernel-qcow2-linux-0a25556f84d5f79e68e9502bb1f32a43377ab2bf.zip | |
perf/x86/amd: Set the size of event map array to PERF_COUNT_HW_MAX
The entry for PERF_COUNT_HW_REF_CPU_CYCLES is not used on AMD, but is
referenced by filter_events() which expects undefined events to have a
value of 0.
Found via KASAN:
UBSAN: Undefined behaviour in arch/x86/events/amd/core.c:132:30
index 9 is out of range for type 'u64 [9]'
UBSAN: Undefined behaviour in arch/x86/events/amd/core.c:132:9
load of address ffffffff81c021c8 with insufficient space for an object of type 'const u64'
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1461749731-30979-1-git-send-email-kilobyte@angband.pl
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/events')
0 files changed, 0 insertions, 0 deletions