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xfrm: Fix NULL pointer dereference on sub policy usage 

xfrm_state_sort() takes the unsorted states from the src array
and stores them into the dst array. We try to get the namespace
from the dst array which is empty at this time, so take the
namespace from the src array instead.

Fixes: 283bc9f35b ("xfrm: Namespacify xfrm state/policy locks")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Steffen Klassert 2014-02-19 13:33:23 +01:00
parent 876fc03aaa
commit 35ea790d78
1 changed files with 1 additions and 1 deletions
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2
net/xfrm/xfrm_state.c
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@ -1451,7 +1451,7 @@ xfrm_state_sort(struct xfrm_state **dst, struct xfrm_state **src, int n,
{
int err = 0;
struct xfrm_state_afinfo *afinfo = xfrm_state_get_afinfo(family);
struct net *net = xs_net(*dst);
struct net *net = xs_net(*src);
if (!afinfo)
return -EAFNOSUPPORT;