diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2024-06-07 18:01:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-21 15:38:38 +0300 |
| commit | f1f0a46f8bb8890b90ab7194f0a0c8fe2a3fb57f (patch) | |
| tree | 1a131ab6a49dc5ee396fac241c912fca406a4af7 /net/mptcp/pm_netlink.c | |
| parent | 35bcf16b4a28c10923ff391d14f6ed0ae471ee5f (diff) | |
| download | linux-f1f0a46f8bb8890b90ab7194f0a0c8fe2a3fb57f.tar.xz | |
mptcp: ensure snd_una is properly initialized on connect
commit 8031b58c3a9b1db3ef68b3bd749fbee2e1e1aaa3 upstream.
This is strictly related to commit fb7a0d334894 ("mptcp: ensure snd_nxt
is properly initialized on connect"). It turns out that syzkaller can
trigger the retransmit after fallback and before processing any other
incoming packet - so that snd_una is still left uninitialized.
Address the issue explicitly initializing snd_una together with snd_nxt
and write_seq.
Suggested-by: Mat Martineau <martineau@kernel.org>
Fixes: 8fd738049ac3 ("mptcp: fallback in case of simultaneous connect")
Cc: stable@vger.kernel.org
Reported-by: Christoph Paasch <cpaasch@apple.com>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/485
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240607-upstream-net-20240607-misc-fixes-v1-1-1ab9ddfa3d00@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/mptcp/pm_netlink.c')
0 files changed, 0 insertions, 0 deletions