From: Herbert Xu Date: Mon, 15 Feb 2010 20:00:51 +0000 (+0000) Subject: xfrm: Fix xfrm_state_clone leak X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=553f9118abc4fc53674fff87f6fe5fa3f56a41ed;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git xfrm: Fix xfrm_state_clone leak xfrm_state_clone calls kfree instead of xfrm_state_put to free a failed state. Depending on the state of the failed state, it can cause leaks to things like module references. All states should be freed by xfrm_state_put past the point of xfrm_init_state. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index b36cc344474b..f445ea1c5f52 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -1102,7 +1102,7 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, int *errp) int err = -ENOMEM; struct xfrm_state *x = xfrm_state_alloc(net); if (!x) - goto error; + goto out; memcpy(&x->id, &orig->id, sizeof(x->id)); memcpy(&x->sel, &orig->sel, sizeof(x->sel)); @@ -1160,16 +1160,10 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, int *errp) return x; error: + xfrm_state_put(x); +out: if (errp) *errp = err; - if (x) { - kfree(x->aalg); - kfree(x->ealg); - kfree(x->calg); - kfree(x->encap); - kfree(x->coaddr); - } - kfree(x); return NULL; }