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Subject[PATCH] perf/core: Call LSM hook after copying perf_event_attr
Date
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")
Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
kernel/events/core.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 7858bafffa9d..e035545f624f 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -12033,12 +12033,12 @@ 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;

--
2.36.1.255.ge46751e96f-goog
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