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-rw-r--r--security/smack/smackfs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index 66f3c539d504..3a75d2a8f517 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -855,6 +855,8 @@ static ssize_t smk_set_cipso(struct file *file, const char __user *buf,
if (format == SMK_FIXED24_FMT &&
(count < SMK_CIPSOMIN || count > SMK_CIPSOMAX))
return -EINVAL;
+ if (count > PAGE_SIZE)
+ return -EINVAL;
data = memdup_user_nul(buf, count);
if (IS_ERR(data))