[PATCH v2 7/7] parisc/perf: open access for CAP_SYS_PERFMON privileged process

Alexey Budankov alexey.budankov at linux.intel.com
Mon Dec 16 07:19:42 UTC 2019

Open access to monitoring for CAP_SYS_PERFMON privileged processes.
For backward compatibility reasons access to the monitoring remains open
for CAP_SYS_ADMIN privileged processes but CAP_SYS_ADMIN usage for secure
monitoring is discouraged with respect to CAP_SYS_PERFMON capability.

Signed-off-by: Alexey Budankov <alexey.budankov at linux.intel.com>
 arch/parisc/kernel/perf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 676683641d00..58e7d1444e4f 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -300,7 +300,7 @@ static ssize_t perf_write(struct file *file, const char __user *buf,
 		return -EFAULT;
-	if (!capable(CAP_SYS_ADMIN))
+	if (!(capable(CAP_SYS_PERFMON) || capable(CAP_SYS_ADMIN)))
 		return -EACCES;
 	if (count != sizeof(uint32_t))

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