6.6-stable review patch. If anyone has any objections, please let me know.
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From: Sabrina Dubroca sd@queasysnail.net
[ Upstream commit 417e91e856099e9b8a42a2520e2255e6afe024be ]
At the start of tls_sw_recvmsg, we take a reference on the psock, and then call tls_rx_reader_lock. If that fails, we return directly without releasing the reference.
Instead of adding a new label, just take the reference after locking has succeeded, since we don't need it before.
Fixes: 4cbc325ed6b4 ("tls: rx: allow only one reader at a time") Signed-off-by: Sabrina Dubroca sd@queasysnail.net Reviewed-by: Simon Horman horms@kernel.org Link: https://lore.kernel.org/r/fe2ade22d030051ce4c3638704ed58b67d0df643.171112096... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/tls/tls_sw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index 925de4caa894a..df166f6afad82 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -1976,10 +1976,10 @@ int tls_sw_recvmsg(struct sock *sk, if (unlikely(flags & MSG_ERRQUEUE)) return sock_recv_errqueue(sk, msg, len, SOL_IP, IP_RECVERR);
- psock = sk_psock_get(sk); err = tls_rx_reader_lock(sk, ctx, flags & MSG_DONTWAIT); if (err < 0) return err; + psock = sk_psock_get(sk); bpf_strp_enabled = sk_psock_strp_enabled(psock);
/* If crypto failed the connection is broken */