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| author | Namhyung Kim <namhyung@kernel.org> | 2022-12-21 01:31:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-07 13:11:46 +0300 |
| commit | 9dd6b35e2bcd2c64b2a830aa8bda0a0ff6c58705 (patch) | |
| tree | 154d71a7a69dca355c37be620c1c81b6f5efc44d /kernel | |
| parent | 04241956ce8825ff06e06e4083e7b692e9d5f712 (diff) | |
| download | linux-9dd6b35e2bcd2c64b2a830aa8bda0a0ff6c58705.tar.xz | |
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 732b392fc5c6..3b9e86108f43 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -12231,12 +12231,12 @@ 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; |