diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2023-06-02 01:33:03 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-06-02 01:38:26 +0300 |
| commit | a03a91bd68cb00c615e602cf605e6be12bedaa90 (patch) | |
| tree | d26ef8bf5538d777498d6ef0fc6e4cc69475415b /net/ipv4/tcp.c | |
| parent | 4ff3dfc91c8458f65366f283167d1cd6f16be06f (diff) | |
| parent | 714069daa5d345483578e2ff77fb6f06f4dcba6a (diff) | |
| download | linux-a03a91bd68cb00c615e602cf605e6be12bedaa90.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
No conflicts.
Adjacent changes:
drivers/net/ethernet/sfc/tc.c
622ab656344a ("sfc: fix error unwinds in TC offload")
b6583d5e9e94 ("sfc: support TC decap rules matching on enc_src_port")
net/mptcp/protocol.c
5b825727d087 ("mptcp: add annotations around msk->subflow accesses")
e76c8ef5cc5b ("mptcp: refactor mptcp_stream_accept()")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index dc8e4697d234..53b7751b68e1 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2961,6 +2961,12 @@ int tcp_disconnect(struct sock *sk, int flags) int old_state = sk->sk_state; u32 seq; + /* Deny disconnect if other threads are blocked in sk_wait_event() + * or inet_wait_for_connect(). + */ + if (sk->sk_wait_pending) + return -EBUSY; + if (old_state != TCP_CLOSE) tcp_set_state(sk, TCP_CLOSE); @@ -3952,7 +3958,8 @@ int do_tcp_getsockopt(struct sock *sk, int level, switch (optname) { case TCP_MAXSEG: val = tp->mss_cache; - if (!val && ((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_LISTEN))) + if (tp->rx_opt.user_mss && + ((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_LISTEN))) val = tp->rx_opt.user_mss; if (tp->repair) val = tp->rx_opt.mss_clamp; |