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af_key: Fix heap information leak 

Since x->encap of pfkey_msg2xfrm_state() is not
initialized to 0, kernel heap data can be leaked.

Fix with kzalloc() to prevent this.

Signed-off-by: Hyunwoo Kim <v4bel@theori.io>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hyunwoo Kim 2023-02-09 01:16:48 -08:00 committed by David S. Miller
parent 20ab843242
commit 2f47965183
1 changed files with 1 additions and 1 deletions
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2
net/key/af_key.c
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@ -1261,7 +1261,7 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net,
const struct sadb_x_nat_t_type* n_type;
struct xfrm_encap_tmpl *natt;
x->encap = kmalloc(sizeof(*x->encap), GFP_KERNEL);
x->encap = kzalloc(sizeof(*x->encap), GFP_KERNEL);
if (!x->encap) {
err = -ENOMEM;
goto out;