[PATCH v4 9/9] drivers/oprofile: open access for CAP_SYS_PERFMON privileged process
From: Alexey Budankov <hidden>
Date: 2019-12-18 09:31:20
Also in:
bpf, intel-gfx, linux-arm-kernel, linux-perf-users, linuxppc-dev, lkml, selinux
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 <redacted> --- drivers/oprofile/event_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
index 12ea4a4ad607..6c9edc8bbc95 100644
--- a/drivers/oprofile/event_buffer.c
+++ b/drivers/oprofile/event_buffer.c@@ -113,7 +113,7 @@ static int event_buffer_open(struct inode *inode, struct file *file) { int err = -EPERM; - if (!capable(CAP_SYS_ADMIN)) + if (!perfmon_capable()) return -EPERM; if (test_and_set_bit_lock(0, &buffer_opened))
--
2.20.1