diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2022-12-20 14:31:40 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-14 10:16:33 +0100 |
| commit | e61eacf9936441af33062c944c37ba1d1d6704e8 (patch) | |
| tree | d69e3a27dd52e1031345f43d4ec5c7422913c471 /kernel | |
| parent | 0cb31bd88361edb96cfc622648717ba348f0f4dc (diff) | |
perf/core: Call LSM hook after copying perf_event_attr
commit 0a041ebca4956292cadfb14a63ace3a9c1dcb0a3 upstream.
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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
| -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 979d7946a772..d7b61116f15b 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -11781,12 +11781,12 @@ 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; |