[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <167214188307.4906.2093385689566390498.tip-bot2@tip-bot2>
Date: Tue, 27 Dec 2022 11:51:23 -0000
From: "tip-bot2 for Namhyung Kim" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Namhyung Kim <namhyung@...nel.org>,
"Peter Zijlstra (Intel)" <peterz@...radead.org>,
"Joel Fernandes (Google)" <joel@...lfernandes.org>,
stable@...r.kernel.org, x86@...nel.org,
linux-kernel@...r.kernel.org
Subject: [tip: perf/urgent] perf/core: Call LSM hook after copying perf_event_attr
The following commit has been merged into the perf/urgent branch of tip:
Commit-ID: 0a041ebca4956292cadfb14a63ace3a9c1dcb0a3
Gitweb: https://git.kernel.org/tip/0a041ebca4956292cadfb14a63ace3a9c1dcb0a3
Author: Namhyung Kim <namhyung@...nel.org>
AuthorDate: Tue, 20 Dec 2022 14:31:40 -08:00
Committer: Peter Zijlstra <peterz@...radead.org>
CommitterDate: Tue, 27 Dec 2022 12:44:01 +01:00
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@...nel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Reviewed-by: Joel Fernandes (Google) <joel@...lfernandes.org>
Cc: stable@...r.kernel.org
Link: https://lkml.kernel.org/r/20221220223140.4020470-1-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 63d674c..d56328e 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;
Powered by blists - more mailing lists