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| author | Paolo Abeni <pabeni@redhat.com> | 2024-12-30 21:12:31 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-01-09 15:33:55 +0300 |
| commit | 10a641cad465a9df0bd94c03d40e1b7ce37d0a5f (patch) | |
| tree | 1967f9beb00466ba8888f83d32ac2afb192bd438 /net/unix/sysctl_net_unix.c | |
| parent | 8353226fe3ca9e0861aab2e256fcb18c754981fd (diff) | |
| download | linux-10a641cad465a9df0bd94c03d40e1b7ce37d0a5f.tar.xz | |
mptcp: don't always assume copied data in mptcp_cleanup_rbuf()
commit 551844f26da2a9f76c0a698baaffa631d1178645 upstream.
Under some corner cases the MPTCP protocol can end-up invoking
mptcp_cleanup_rbuf() when no data has been copied, but such helper
assumes the opposite condition.
Explicitly drop such assumption and performs the costly call only
when strictly needed - before releasing the msk socket lock.
Fixes: fd8976790a6c ("mptcp: be careful on MPTCP-level ack.")
Cc: stable@vger.kernel.org
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://patch.msgid.link/20241230-net-mptcp-rbuf-fixes-v1-2-8608af434ceb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/unix/sysctl_net_unix.c')
0 files changed, 0 insertions, 0 deletions