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[XFRM]: Fix possible overflow of sock->sk_policy

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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>
This commit is contained in:
Herbert Xu 2005-07-26 15:43:17 -07:00 committed by David S. Miller
parent cadf01c2fc
commit a4f1bac625
1 changed files with 3 additions and 0 deletions
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3
net/xfrm/xfrm_user.c
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@ -1350,6 +1350,9 @@ static struct xfrm_policy *xfrm_compile_policy(u16 family, int opt,
if (nr > XFRM_MAX_DEPTH) if (nr > XFRM_MAX_DEPTH)
return NULL; return NULL;
if (p->dir > XFRM_POLICY_OUT)
return NULL;
xp = xfrm_policy_alloc(GFP_KERNEL); xp = xfrm_policy_alloc(GFP_KERNEL);
if (xp == NULL) { if (xp == NULL) {
*dir = -ENOBUFS; *dir = -ENOBUFS;