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authorPaolo Abeni <pabeni@redhat.com>2020-11-18 23:05:34 +0100
committerJakub Kicinski <kuba@kernel.org>2020-11-19 21:54:24 -0800
commitb680a214ec281dbd44b5ebbf3f126a57f1ecf0f7 (patch)
tree8bbd114bccb17adb18a9fc0e08beb29af36c7827 /tools/perf/scripts/python/stackcollapse.py
parentac75b09624ed679e239b75081923a6d33ae35876 (diff)
mptcp: update rtx timeout only if required.
We must start the retransmission timer only there are pending data in the rtx queue. Otherwise we can hit a WARN_ON in mptcp_reset_timer(), as syzbot demonstrated. Reported-and-tested-by: syzbot+42aa53dafb66a07e5a24@syzkaller.appspotmail.com Fixes: d9ca1de8c0cd ("mptcp: move page frag allocation in mptcp_sendmsg()") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org> Link: https://lore.kernel.org/r/1a72039f112cae048c44d398ffa14e0a1432db3d.1605737083.git.pabeni@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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