diff options
| author | Robin Murphy <robin.murphy@arm.com> | 2022-05-11 00:23:08 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-05-11 12:20:42 +0300 |
| commit | 3630b2a86390b4be907d8685b2fddee0dd73a835 (patch) | |
| tree | 4591b215d228ad4ed7ea87275ba5827c608f2128 | |
| parent | 33835e8dfb3c79821cdc6e2a9b48ae05bd4820dc (diff) | |
| download | linux-3630b2a86390b4be907d8685b2fddee0dd73a835.tar.xz | |
perf/arm-cmn: Fix filter_sel lookup
Carefully considering the bounds of an array is all well and good,
until you forget that that array also contains a NULL sentinel at
the end and dereference it. So close...
Reported-by: Qian Cai <quic_qiancai@quicinc.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/bebba768156aa3c0757140457bdd0fec10819388.1652217788.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | drivers/perf/arm-cmn.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c index 62f3842d1a47..a8421a43740c 100644 --- a/drivers/perf/arm-cmn.c +++ b/drivers/perf/arm-cmn.c @@ -1514,7 +1514,7 @@ static enum cmn_filter_select arm_cmn_filter_sel(enum cmn_model model, struct arm_cmn_event_attr *e; int i; - for (i = 0; i < ARRAY_SIZE(arm_cmn_event_attrs); i++) { + for (i = 0; i < ARRAY_SIZE(arm_cmn_event_attrs) - 1; i++) { e = container_of(arm_cmn_event_attrs[i], typeof(*e), attr.attr); if (e->model & model && e->type == type && e->eventid == eventid) return e->fsel; |