From a4f1bac62564049ea4718c4624b0fadc9f597c84 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 26 Jul 2005 15:43:17 -0700 Subject: [PATCH] [XFRM]: Fix possible overflow of sock->sk_policy Spotted by, and original patch by, Balazs Scheidler. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/xfrm/xfrm_user.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index ecade4893a1..8da3e25b2c4 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -1350,6 +1350,9 @@ static struct xfrm_policy *xfrm_compile_policy(u16 family, int opt, if (nr > XFRM_MAX_DEPTH) return NULL; + if (p->dir > XFRM_POLICY_OUT) + return NULL; + xp = xfrm_policy_alloc(GFP_KERNEL); if (xp == NULL) { *dir = -ENOBUFS; -- 2.41.1