devices.allow and devices.deny are write-only, and devices.list is read-only.
Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
---
security/device_cgroup.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 3aacd0f..b13fbb8 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -439,16 +439,19 @@ static struct cftype dev_cgroup_files[] = {
.name = "allow",
.write_string = devcgroup_access_write,
.private = DEVCG_ALLOW,
+ .mode = 0200,
},
{
.name = "deny",
.write_string = devcgroup_access_write,
.private = DEVCG_DENY,
+ .mode = 0200,
},
{
.name = "list",
.read_seq_string = devcgroup_seq_read,
.private = DEVCG_LIST,
+ .mode = 0444,
},
};
-- 1.5.4.rc3
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