syzbot


INFO: rcu detected stall in wg_packet_tx_worker
Status: fixed on 2020/07/17 17:58
Reported-by: syzbot+0251e883fe39e7a0cb0a@syzkaller.appspotmail.com
Fix commit: df4953e4e997 sch_sfq: validate silly quantum values
First crash: 755d, last: 696d

Cause bisection: introduced by (bisect log) :
commit e7096c131e5161fa3b8e52a650d7719d2857adfd
Author: Jason A. Donenfeld <Jason@zx2c4.com>
Date: Sun Dec 8 23:27:34 2019 +0000

  net: WireGuard secure network tunnel

Crash: INFO: rcu detected stall in wg_packet_tx_worker (log)
Repro: C syz .config
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in wg_packet_tx_worker (2) 4 551d 647d 0/22 auto-closed as invalid on 2021/02/08 20:10
upstream INFO: rcu detected stall in wg_packet_tx_worker (4) 1 171d 171d 0/22 closed as invalid on 2022/02/08 10:10
upstream INFO: rcu detected stall in wg_packet_tx_worker (3) C inconclusive 5 273d 255d 22/22 fixed on 2021/11/10 00:50

Sample crash report:

Crashes (24):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-386 2020/04/26 13:17 upstream b2768df24ec4 99b258dd .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/06/18 19:05 upstream 7ae77150d94d d45a4d69 .config log report
ci-upstream-kasan-gce-selinux-root 2020/05/05 15:34 upstream 47cf1b422e60 4b76dd25 .config log report
ci-upstream-kasan-gce-root 2020/05/05 15:13 upstream 47cf1b422e60 4b76dd25 .config log report
ci-upstream-kasan-gce 2020/05/05 07:17 upstream 9851a0dee7c2 9941337c .config log report
ci-upstream-kasan-gce-selinux-root 2020/05/01 22:59 upstream 052c467cb587 bc734e7a .config log report
ci-upstream-kasan-gce 2020/04/29 17:33 upstream 96c9a7802af7 496a08ae .config log report
ci-upstream-kasan-gce-root 2020/04/27 10:38 upstream 6a8b55ed4056 0ce7569e .config log report
ci-upstream-kasan-gce 2020/04/26 15:41 upstream b2768df24ec4 99b258dd .config log report
ci-upstream-kasan-gce-root 2020/04/26 10:10 upstream b2768df24ec4 99b258dd .config log report
ci-upstream-kasan-gce-root 2020/04/26 08:34 upstream b2768df24ec4 99b258dd .config log report
ci-upstream-kasan-gce-root 2020/04/26 07:15 upstream b2768df24ec4 99b258dd .config log report
ci-upstream-kasan-gce-386 2020/05/01 23:01 upstream 052c467cb587 bc734e7a .config log report
ci-upstream-kasan-gce-386 2020/04/26 22:27 upstream edf17b283844 0ce7569e .config log report
ci-upstream-net-this-kasan-gce 2020/04/20 07:01 net 9bacd256f135 9f7c6d12 .config log report
ci-upstream-net-kasan-gce 2020/04/29 17:35 net-next 790ab249b55d 496a08ae .config log report
ci-upstream-net-kasan-gce 2020/04/20 06:43 net-next 0fde6e3b55a1 9f7c6d12 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/05/20 09:53 linux-next ac935d227366 67fa1f59 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/05/14 20:20 linux-next ac935d227366 2d572622 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/05/14 09:11 linux-next ac935d227366 a885920d .config log report
ci-upstream-linux-next-kasan-gce-root 2020/05/13 15:51 linux-next ac935d227366 9a6d42fb .config log report
ci-upstream-linux-next-kasan-gce-root 2020/05/11 12:32 linux-next ac935d227366 f8f57555 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/05/09 22:43 linux-next ac935d227366 88cb3e92 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/04/26 07:30 linux-next ac935d227366 99b258dd .config log report