diff options
| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2017-06-04 04:16:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-13 19:48:19 +0200 |
| commit | 6083f1625b75a9c711ab14e95f581fc2bb8e3710 (patch) | |
| tree | ffdad9a75294011b64b196628a8003ef95f5d05c /drivers/net/macsec.c | |
| parent | 2cd3aa5a3a7b4b24a2492087d054fdcc818ff53e (diff) | |
macsec: check return value of skb_to_sgvec always
[ Upstream commit cda7ea6903502af34015000e16be290a79f07638 ]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/macsec.c')
| -rw-r--r-- | drivers/net/macsec.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c index 2caac0c37059..365a48cfcbbf 100644 --- a/drivers/net/macsec.c +++ b/drivers/net/macsec.c @@ -742,7 +742,12 @@ static struct sk_buff *macsec_encrypt(struct sk_buff *skb, macsec_fill_iv(iv, secy->sci, pn); sg_init_table(sg, ret); - skb_to_sgvec(skb, sg, 0, skb->len); + ret = skb_to_sgvec(skb, sg, 0, skb->len); + if (unlikely(ret < 0)) { + macsec_txsa_put(tx_sa); + kfree_skb(skb); + return ERR_PTR(ret); + } if (tx_sc->encrypt) { int len = skb->len - macsec_hdr_len(sci_present) - @@ -949,7 +954,11 @@ static struct sk_buff *macsec_decrypt(struct sk_buff *skb, macsec_fill_iv(iv, sci, ntohl(hdr->packet_number)); sg_init_table(sg, ret); - skb_to_sgvec(skb, sg, 0, skb->len); + ret = skb_to_sgvec(skb, sg, 0, skb->len); + if (unlikely(ret < 0)) { + kfree_skb(skb); + return ERR_PTR(ret); + } if (hdr->tci_an & MACSEC_TCI_E) { /* confidentiality: ethernet + macsec header |