syzbot


possible deadlock in inet_stream_connect
Status: upstream: reported C repro on 2021/02/17 17:30
Reported-by: syzbot+b0f5178b61ed7f3bbb46@syzkaller.appspotmail.com
First crash: 255d, last: 253d

Cause bisection: introduced by (bisect log) :
commit 40947e13997a1cba4e875893ca6e5d5e61a0689d
Author: Florian Westphal <fw@strlen.de>
Date: Fri Feb 12 23:59:56 2021 +0000

  mptcp: schedule worker when subflow is closed

Crash: possible deadlock in inet_stream_connect (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) [no-op commit]:
commit 5edf8bd6f4a225f7ad0501f921f9717df152e7fb
Author: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Date: Wed Dec 9 20:07:37 2020 +0000

  arm64: dts: renesas: rcar-gen3: Add missing CMT nodes


Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-kasan-gce 2021/02/16 21:33 net-next 9ec5eea5b6ac 98682e5e .config log report syz C possible deadlock in inet_stream_connect
ci-upstream-net-kasan-gce 2021/02/15 05:06 net-next c48f86071027 98682e5e .config log report syz C possible deadlock in inet_stream_connect
ci-upstream-net-kasan-gce 2021/02/16 05:25 net-next d2a04370817f 98682e5e .config log report info possible deadlock in inet_stream_connect