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crypto: chtls: dereference null variable
author
Atul Gupta
<atul.gupta@chelsio.com>
Sun, 27 May 2018 15:45:20 +0000
(21:15 +0530)
committer
David S. Miller
<davem@davemloft.net>
Tue, 29 May 2018 14:14:38 +0000
(10:14 -0400)
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: David S. Miller <davem@davemloft.net>
drivers/crypto/chelsio/chtls/chtls_io.c
patch
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diff --git
a/drivers/crypto/chelsio/chtls/chtls_io.c
b/drivers/crypto/chelsio/chtls/chtls_io.c
index
b6f2607
..
4510772
100644
(file)
--- a/
drivers/crypto/chelsio/chtls/chtls_io.c
+++ b/
drivers/crypto/chelsio/chtls/chtls_io.c
@@
-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;