WARNING in kcm_write_msgs
Status: upstream: reported C repro on 2020/03/19 07:10
First crash: 356d, last: 4d08h

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in kcm_write_msgs C inconclusive 1 268d 329d 0/1 upstream: reported C repro on 2020/04/12 04:13
linux-4.19 WARNING in kcm_write_msgs C 1 10d 341d 0/1 upstream: reported C repro on 2020/03/30 19:34

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2021/03/02 19:41 upstream 7a7fd0de 347a5dc3 .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/01/10 10:56 upstream 2ff90100 347a5dc3 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/11/12 13:08 upstream 3d5e28bf 347a5dc3 .config log report syz C
Crashes (62):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2020/04/20 19:40 upstream ae83d0b4 347a5dc3 .config log report syz C
ci-upstream-kasan-gce-root 2020/04/19 02:11 upstream 90280eaa 365fba24 .config log report syz C
ci-upstream-net-this-kasan-gce 2020/03/26 00:43 net 919a23e9 41f049cc .config log report syz C
ci-upstream-net-kasan-gce 2020/03/25 23:53 net-next 29f3490b 41f049cc .config log report syz C
ci-upstream-net-kasan-gce 2021/01/21 23:13 net-next 9e8789c8 d4f4eca5 .config log report info WARNING in kcm_write_msgs
ci-upstream-kasan-gce-selinux-root 2020/07/28 17:32 upstream 92ed3019 cb93dc6a .config log report
ci-upstream-kasan-gce 2020/05/05 17:52 upstream 47cf1b42 4b76dd25 .config log report
ci-upstream-kasan-gce-selinux-root 2020/04/02 21:57 upstream 7be97138 a34e2c33 .config log report
ci-upstream-net-this-kasan-gce 2021/01/16 18:12 net bcd0cf19 65a7a854 .config log report info
ci-upstream-net-this-kasan-gce 2020/12/11 10:33 net d9838b1d f900b48c .config log report info
ci-upstream-net-this-kasan-gce 2020/12/01 19:28 net 237f977a 07bfe8a5 .config log report info
ci-upstream-net-this-kasan-gce 2020/11/29 03:49 net 4d521943 a0092f9d .config log report info
ci-upstream-net-this-kasan-gce 2020/11/19 06:03 net a3dcb3e7 0767f13f .config log report info
ci-upstream-net-this-kasan-gce 2020/10/13 12:49 net 64a632da bd69ee0d .config log report info
ci-upstream-net-this-kasan-gce 2020/09/02 06:47 net a609d025 abf9ba4f .config log report
ci-upstream-net-this-kasan-gce 2020/08/21 03:21 net cf96d977 1d75fe45 .config log report
ci-upstream-net-this-kasan-gce 2020/07/07 11:02 net 1ca0fafd 51095195 .config log report
ci-upstream-net-this-kasan-gce 2020/06/24 07:55 net b835a71e 54566aff .config log report
ci-upstream-net-this-kasan-gce 2020/06/07 23:34 net 4e2905ad 2c2b926c .config log report
ci-upstream-net-this-kasan-gce 2020/06/07 21:45 net 4e2905ad 2c2b926c .config log report
ci-upstream-net-this-kasan-gce 2020/05/31 07:03 net 05aa69e5 6f3e1c7c .config log report
ci-upstream-net-this-kasan-gce 2020/05/23 21:58 net d04322a0 9682898d .config log report
ci-upstream-net-this-kasan-gce 2020/05/04 04:32 net 57c7f2bd 58ae5e18 .config log report
ci-upstream-net-this-kasan-gce 2020/05/03 02:24 net dc30b405 5457883a .config log report
ci-upstream-net-this-kasan-gce 2020/05/01 23:46 net 69422a7e bc734e7a .config log report
ci-upstream-net-this-kasan-gce 2020/04/30 05:13 net 98123074 2dd552a5 .config log report
ci-upstream-net-this-kasan-gce 2020/04/26 11:01 net 167ff131 99b258dd .config log report
ci-upstream-net-this-kasan-gce 2020/04/20 03:45 net 9bacd256 9f7c6d12 .config log report
ci-upstream-net-this-kasan-gce 2020/04/18 23:21 net 441870ee 365fba24 .config log report
ci-upstream-net-this-kasan-gce 2020/03/15 04:32 net 94b18a87 749688d2 .config log report
ci-upstream-net-kasan-gce 2020/12/01 22:51 net-next cb7fb043 07bfe8a5 .config log report info
ci-upstream-net-kasan-gce 2020/09/23 22:08 net-next 748d1c8a 287cd75a .config log report info
ci-upstream-net-kasan-gce 2020/09/15 15:26 net-next ed6d9b02 6989d6f6 .config log report info
ci-upstream-net-kasan-gce 2020/09/03 22:35 net-next 22b330b6 abf9ba4f .config log report
ci-upstream-net-kasan-gce 2020/09/02 04:29 net-next dc1a9bf2 abf9ba4f .config log report
ci-upstream-net-kasan-gce 2020/08/25 06:37 net-next 85eb5bc3 344da168 .config log report
ci-upstream-net-kasan-gce 2020/08/11 11:00 net-next bfdd5aaa bacaf5fa .config log report
ci-upstream-net-kasan-gce 2020/08/04 17:11 net-next da795540 80a06902 .config log report
ci-upstream-net-kasan-gce 2020/08/01 10:12 net-next 8f3f330d d895b3be .config log report
ci-upstream-net-kasan-gce 2020/07/31 16:04 net-next bd69058f 8df85ed9 .config log report
ci-upstream-net-kasan-gce 2020/07/23 00:45 net-next a6c0d093 340ea530 .config log report
ci-upstream-net-kasan-gce 2020/07/21 18:46 net-next 71d4364a 21f1765e .config log report
ci-upstream-net-kasan-gce 2020/07/14 07:26 net-next 2be53e0e ce4c95b3 .config log report
ci-upstream-net-kasan-gce 2020/07/02 01:07 net-next 2b04a661 39acb39d .config log report
ci-upstream-net-kasan-gce 2020/06/19 19:53 net-next cb8e59cc 81abc331 .config log report
ci-upstream-net-kasan-gce 2020/06/07 12:24 net-next cb8e59cc 2c2b926c .config log report
ci-upstream-net-kasan-gce 2020/05/29 20:27 net-next 394f9ebf 3905eaae .config log report
ci-upstream-net-kasan-gce 2020/05/25 22:51 net-next 06ec313e 30927cd7 .config log report
ci-upstream-net-kasan-gce 2020/05/17 16:58 net-next d53b1162 37bccd4e .config log report
ci-upstream-net-kasan-gce 2020/05/14 16:51 net-next 6545be82 2d572622 .config log report
ci-upstream-net-kasan-gce 2020/05/12 11:28 net-next 3242956b 160c7698 .config log report
ci-upstream-net-kasan-gce 2020/05/07 13:37 net-next 3793faad 98cbd87b .config log report
ci-upstream-net-kasan-gce 2020/05/03 04:23 net-next 115506fe 5457883a .config log report
ci-upstream-net-kasan-gce 2020/04/26 13:08 net-next 6033cebd 99b258dd .config log report
ci-upstream-net-kasan-gce 2020/04/22 20:55 net-next b86a0373 2e44d63e .config log report
ci-upstream-net-kasan-gce 2020/04/20 10:41 net-next 0fde6e3b 9f7c6d12 .config log report
ci-upstream-net-kasan-gce 2020/04/19 09:19 net-next 513a24ff 365fba24 .config log report
ci-upstream-net-kasan-gce 2020/04/18 06:52 net-next 2fcd8014 435c6d53 .config log report
ci-upstream-net-kasan-gce 2020/04/15 07:11 net-next 63bef48f 3f3c5574 .config log report
ci-upstream-net-kasan-gce 2020/03/30 08:58 net-next 41b14502 05736b29 .config log report
ci-upstream-net-kasan-gce 2020/03/25 22:48 net-next 29f3490b 41f049cc .config log report