After the label is matched successful, any other levels judgements
are meaningless. Therefore, add break to return early
Signed-off-by: Cai Xinchen <redacted>
---
security/lockdown/lockdown.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/security/lockdown/lockdown.c b/security/lockdown/lockdown.c
index 8d46886d2cca..263dcc80d839 100644
--- a/security/lockdown/lockdown.c
+++ b/security/lockdown/lockdown.c
@@ -139,8 +139,10 @@ static ssize_t lockdown_write(struct file *file, const char __user *buf,
enum lockdown_reason level = lockdown_levels[i];
const char *label = lockdown_reasons[level];
- if (label && !strcmp(state, label))
+ if (label && !strcmp(state, label)) {
err = lock_kernel_down("securityfs", level);
+ break;
+ }
}
kfree(state);--
2.18.0.huawei.25