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authorHerbert Xu <herbert@gondor.apana.org.au>2005-07-27 02:43:17 +0400
committerDavid S. Miller <davem@davemloft.net>2005-07-27 02:43:17 +0400
commita4f1bac62564049ea4718c4624b0fadc9f597c84 (patch)
tree294ef690f2b8978ee83b9e4e7dadbfb391ea1f94 /net/xfrm
parentcadf01c2fc0cd66dfef4956ef1a6482ed01c3150 (diff)
downloadlinux-a4f1bac62564049ea4718c4624b0fadc9f597c84.tar.xz
[XFRM]: Fix possible overflow of sock->sk_policy
Spotted by, and original patch by, Balazs Scheidler. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_user.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index ecade4893a13..8da3e25b2c4c 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;