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authorNamhyung Kim <namhyung@kernel.org>2022-12-20 14:31:40 -0800
committerPeter Zijlstra <peterz@infradead.org>2022-12-27 12:44:01 +0100
commit0a041ebca4956292cadfb14a63ace3a9c1dcb0a3 (patch)
tree4c9aa8bb90c2c1dd90d2701817694411c7f3ab07 /kernel/events/core.c
parenta551844e345ba2a1c533dee4b55cb0efddb1bcda (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
Diffstat (limited to 'kernel/events/core.c')
-rw-r--r--kernel/events/core.c6
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;