From 7bf7b7c385a145221a37c81d485baa37fea901a0 Mon Sep 17 00:00:00 2001 From: Vinay Kumar Yadav Date: Mon, 2 Nov 2020 23:09:10 +0530 Subject: [PATCH] chelsio/chtls: fix always leaking ctrl_skb [ Upstream commit dbfe394dad33f99cf8458be50483ec40a5d29c34 ] Correct skb refcount in alloc_ctrl_skb(), causing skb memleak when chtls_send_abort() called with NULL skb. it was always leaking the skb, correct it by incrementing skb refs by one. Fixes: cc35c88ae4db ("crypto : chtls - CPL handler definition") Signed-off-by: Vinay Kumar Yadav Link: https://lore.kernel.org/r/20201102173909.24826-1-vinay.yadav@chelsio.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/crypto/chelsio/chtls/chtls_cm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/chelsio/chtls/chtls_cm.c b/drivers/crypto/chelsio/chtls/chtls_cm.c index e2c64c943cfc..385bd4dc6686 100644 --- a/drivers/crypto/chelsio/chtls/chtls_cm.c +++ b/drivers/crypto/chelsio/chtls/chtls_cm.c @@ -174,7 +174,7 @@ static struct sk_buff *alloc_ctrl_skb(struct sk_buff *skb, int len) { if (likely(skb && !skb_shared(skb) && !skb_cloned(skb))) { __skb_trim(skb, 0); - refcount_add(2, &skb->users); + refcount_inc(&skb->users); } else { skb = alloc_skb(len, GFP_KERNEL | __GFP_NOFAIL); }