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crypto: chtls - dereference null variable 

skb dereferenced before check in sendpage

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
hifive-unleashed-5.1
Atul Gupta 2018-05-27 21:15:20 +05:30 committed by Herbert Xu
parent 3b8305f5c8
commit ea5213b0da
1 changed files with 1 additions and 2 deletions
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3
drivers/crypto/chelsio/chtls/chtls_io.c
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@ -1230,9 +1230,8 @@ int chtls_sendpage(struct sock *sk, struct page *page,
struct sk_buff *skb = skb_peek_tail(&csk->txq);
int copy, i;
copy = mss - skb->len;
if (!skb || (ULP_SKB_CB(skb)->flags & ULPCB_FLAG_NO_APPEND) ||
copy <= 0) {
(copy = mss - skb->len) <= 0) {
new_buf:
if (!csk_mem_free(cdev, sk))
goto wait_for_sndbuf;