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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:15:07 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:15:07 +0000
commit7fd92ba31ac1c688b59aa93cc03b748f920df8fe (patch)
treebaa580b97c260c790730e2525483eb1953f3c39d /net/netrom/af_netrom.c
parentAdding upstream version 4.19.269. (diff)
downloadlinux-7fd92ba31ac1c688b59aa93cc03b748f920df8fe.tar.xz
linux-7fd92ba31ac1c688b59aa93cc03b748f920df8fe.zip
Adding upstream version 4.19.282.upstream/4.19.282
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'net/netrom/af_netrom.c')
-rw-r--r--net/netrom/af_netrom.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 43910e507..a5d819fa7 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -403,6 +403,11 @@ static int nr_listen(struct socket *sock, int backlog)
struct sock *sk = sock->sk;
lock_sock(sk);
+ if (sock->state != SS_UNCONNECTED) {
+ release_sock(sk);
+ return -EINVAL;
+ }
+
if (sk->sk_state != TCP_LISTEN) {
memset(&nr_sk(sk)->user_addr, 0, AX25_ADDR_LEN);
sk->sk_max_ack_backlog = backlog;