diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2022-12-20 14:31:40 -0800 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-12-27 12:44:01 +0100 |
| commit | 0a041ebca4956292cadfb14a63ace3a9c1dcb0a3 (patch) | |
| tree | 4c9aa8bb90c2c1dd90d2701817694411c7f3ab07 | |
| parent | a551844e345ba2a1c533dee4b55cb0efddb1bcda (diff) | |
perf/core: Call LSM hook after copying perf_event_attr
It passes the attr struct to the security_perf_event_open() but it's
not initialized yet.
Fixes: da97e18458fb ("perf_event: Add support for LSM and SELinux checks")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20221220223140.4020470-1-namhyung@kernel.org
| -rw-r--r-- | kernel/events/core.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 63d674c9b70e..d56328e5080e 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -12321,12 +12321,12 @@ SYSCALL_DEFINE5(perf_event_open, if (flags & ~PERF_FLAG_ALL) return -EINVAL; - /* Do we allow access to perf_event_open(2) ? */ - err = security_perf_event_open(&attr, PERF_SECURITY_OPEN); + err = perf_copy_attr(attr_uptr, &attr); if (err) return err; - err = perf_copy_attr(attr_uptr, &attr); + /* Do we allow access to perf_event_open(2) ? */ + err = security_perf_event_open(&attr, PERF_SECURITY_OPEN); if (err) return err; |