diff options
| author |   Eric Dumazet <edumazet@google.com> | 2023-11-09 17:48:59 +0000 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2023-11-13 20:51:37 -0800 |
| commit | 73bde5a3294853947252cd9092a3517c7cb0cd2d (patch) | |
| tree | b10fc69b8c99caf44ac193dc0cf9bb8e92e3633d /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | Revert "ptp: Fixes a null pointer dereference in ptp_ioctl" (diff) | |
| download | wireguard-linux-73bde5a3294853947252cd9092a3517c7cb0cd2d.tar.xz wireguard-linux-73bde5a3294853947252cd9092a3517c7cb0cd2d.zip | |
ptp: annotate data-race around q->head and q->tail
As I was working on a syzbot report, I found that KCSAN would
probably complain that reading q->head or q->tail without
barriers could lead to invalid results.
Add corresponding READ_ONCE() and WRITE_ONCE() to avoid
load-store tearing.
Fixes: d94ba80ebbea ("ptp: Added a brand new class driver for ptp clocks.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://lore.kernel.org/r/20231109174859.3995880-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions