[PATCH AUTOSEL 5.4 05/17] chtls: Fix potential resource leak
From: Sasha Levin <sashal@kernel.org>
Date: 2021-02-02 15:55:41
Also in:
lkml, stable
Subsystem:
crypto api, the rest · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds
From: Pan Bian <redacted> [ Upstream commit b6011966ac6f402847eb5326beee8da3a80405c7 ] The dst entry should be released if no neighbour is found. Goto label free_dst to fix the issue. Besides, the check of ndev against NULL is redundant. Signed-off-by: Pan Bian <redacted> Link: https://lore.kernel.org/r/20210121145738.51091-1-bianpan2016@163.com (local) Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/crypto/chelsio/chtls/chtls_cm.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/crypto/chelsio/chtls/chtls_cm.c b/drivers/crypto/chelsio/chtls/chtls_cm.c
index eddc6d1bdb2d1..82b76df43ae57 100644
--- a/drivers/crypto/chelsio/chtls/chtls_cm.c
+++ b/drivers/crypto/chelsio/chtls/chtls_cm.c@@ -1047,11 +1047,9 @@ static struct sock *chtls_recv_sock(struct sock *lsk, n = dst_neigh_lookup(dst, &iph->saddr); if (!n || !n->dev) - goto free_sk; + goto free_dst; ndev = n->dev; - if (!ndev) - goto free_dst; if (is_vlan_dev(ndev)) ndev = vlan_dev_real_dev(ndev);
@@ -1117,7 +1115,8 @@ static struct sock *chtls_recv_sock(struct sock *lsk, free_csk: chtls_sock_release(&csk->kref); free_dst: - neigh_release(n); + if (n) + neigh_release(n); dst_release(dst); free_sk: inet_csk_prepare_forced_close(newsk);
--
2.27.0