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-rw-r--r--security/smack/smackfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index a9c516362..61e734baa 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -923,7 +923,7 @@ static ssize_t smk_set_cipso(struct file *file, const char __user *buf,
}
ret = sscanf(rule, "%d", &catlen);
- if (ret != 1 || catlen > SMACK_CIPSO_MAXCATNUM)
+ if (ret != 1 || catlen < 0 || catlen > SMACK_CIPSO_MAXCATNUM)
goto out;
if (format == SMK_FIXED24_FMT &&