syzbot


WARNING in vkms_vblank_simulate (2)
Status: upstream: reported C repro on 2020/10/31 06:14
Reported-by: syzbot+4fc21a003c8332eb0bdd@syzkaller.appspotmail.com
Fix commit: b4142fc4d52d drm/vkms: fix misuse of WARN_ON
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-arm32]
First crash: 279d, last: 20h17m

Cause bisection: failed (bisect log)
duplicates (1):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream boot error: WARNING in vkms_vblank_simulate 27 97d 143d 0/22 closed as dup on 2021/03/12 10:46
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in vkms_vblank_simulate C done 12903 326d 903d 17/22 fixed on 2020/09/16 22:51

Sample crash report:

Crashes (77501):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2021/04/25 16:42 upstream 2a1d7946fa53 36c88236 .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-selinux-root 2021/04/12 20:03 upstream d434405aaab7 bfeda1b1 .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-smack-root 2021/04/06 04:58 upstream 0a50438c8436 6a81331a .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-selinux-root 2021/04/04 02:11 upstream 57fbdb15ec42 6a81331a .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-root 2021/04/03 08:08 upstream d93a0d43e3d0 6a81331a .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce 2021/03/30 14:59 upstream 1e43c377a79f 6a81331a .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-smack-root 2021/03/27 21:20 upstream 0f4498cef9f5 a8529b82 .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce 2021/03/24 02:14 upstream 7acac4b3196c e613994b .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-root 2021/03/23 08:14 upstream 84196390620a 8092f30d .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-root 2021/03/22 17:00 upstream 0d02ec6b3136 bea32f74 .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-root 2021/03/05 08:14 upstream cee407c5cc42 9d751681 .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce 2021/02/22 03:16 upstream 55f62bc87347 a659b3f1 .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-root 2021/01/23 02:32 upstream 83d09ad4b950 4080af96 .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/04/15 08:06 upstream 7f75285ca572 fcdb12ba .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/02/21 13:54 upstream e767b3530acb 3e5ed8b4 .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-linux-next-kasan-gce-root 2021/02/04 22:17 linux-next 0e2c50f40b7f 42b90a7c .config log report syz C WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-selinux-root 2021/01/15 23:48 upstream 5ee88057889b 65a7a854 .config log report syz C
ci-upstream-kasan-gce 2021/01/04 09:03 upstream e71ba9452f0b 79264ae3 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/10/29 10:54 linux-next 3f267ec60b92 f24824d3 .config log report syz C
ci-upstream-kasan-gce 2021/04/25 03:36 upstream 8db5efb83fa9 17f0b706 .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce 2021/04/03 23:00 upstream 57fbdb15ec42 6a81331a .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-selinux-root 2021/01/22 08:27 upstream 9f29bd8b2e71 d4f4eca5 .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/04/14 21:05 upstream 50987beca096 3134b37f .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/04/06 00:03 upstream 0a50438c8436 6a81331a .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/04/02 17:54 upstream 1678e493d530 6a81331a .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/03/27 13:04 upstream 0f4498cef9f5 a8529b82 .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/03/20 21:13 upstream 1c273e10bc0c 17810eae .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/02/20 22:44 upstream f40ddce88593 3e5ed8b4 .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/02/15 21:45 upstream f40ddce88593 98682e5e .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/01/30 12:34 upstream 0e9bcda5d286 fc9fd31e .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/01/23 14:54 upstream fe75a21824e7 52e37319 .config log report syz WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/01/10 00:00 upstream 996e435fd401 2c1f2513 .config log report syz
ci-upstream-kasan-gce-386 2021/01/09 22:38 upstream 996e435fd401 2c1f2513 .config log report syz
ci-upstream-kasan-gce-386 2021/01/09 04:49 upstream 6279d812eab6 c104d4a3 .config log report syz
ci-upstream-kasan-gce-386 2020/12/21 20:09 upstream e37b12e4bb21 04201c06 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/10/29 10:23 linux-next 3f267ec60b92 f24824d3 .config log report syz
ci-qemu-upstream 2021/05/08 16:34 upstream 18a3c5f7abfd bc5434be .config log report info WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-selinux-root 2021/04/29 03:03 upstream acd3d2859453 77e2b668 .config log report info WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce 2021/04/29 02:35 upstream acd3d2859453 77e2b668 .config log report info WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-smack-root 2021/04/28 23:05 upstream acd3d2859453 77e2b668 .config log report info WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-root 2021/04/28 20:21 upstream acd3d2859453 77e2b668 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/08/02 08:49 upstream bf152b0b41dc 6c236867 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/08/02 08:49 upstream bf152b0b41dc 6c236867 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/08/01 20:00 upstream bf152b0b41dc 6c236867 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/30 18:38 upstream bf152b0b41dc 6c236867 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/30 04:02 upstream bf152b0b41dc 8a799410 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/29 16:01 upstream bf152b0b41dc b44001ce .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/29 13:06 upstream bf152b0b41dc b44001ce .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/29 11:54 upstream bf152b0b41dc b44001ce .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/29 04:18 upstream bf152b0b41dc b44001ce .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/29 00:09 upstream bf152b0b41dc 9a4781d4 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/28 10:37 upstream bf152b0b41dc 17d6ab15 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/28 06:08 upstream bf152b0b41dc 17d6ab15 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/26 17:09 upstream bf152b0b41dc fd511809 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/25 23:09 upstream bf152b0b41dc 4d1b57d4 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/24 03:29 upstream bf152b0b41dc bc5f1d88 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/23 02:08 upstream bf152b0b41dc bc5f1d88 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/21 23:35 upstream bf152b0b41dc 29c3f20f .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/21 20:44 upstream bf152b0b41dc 29c3f20f .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/21 07:49 upstream bf152b0b41dc 1b201b48 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/20 14:22 upstream bf152b0b41dc 1b201b48 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/19 07:16 upstream bf152b0b41dc f115ae98 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/18 22:19 upstream bf152b0b41dc f115ae98 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/17 03:49 upstream bf152b0b41dc f115ae98 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/16 14:55 upstream bf152b0b41dc f115ae98 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/15 14:30 upstream bf152b0b41dc a44e4957 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/15 07:35 upstream bf152b0b41dc b9a2f64e .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/15 00:00 upstream bf152b0b41dc 94e0b707 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/13 22:50 upstream bf152b0b41dc 70168d5c .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/13 19:34 upstream bf152b0b41dc 70168d5c .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/13 16:29 upstream bf152b0b41dc 70168d5c .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/13 14:42 upstream bf152b0b41dc 70168d5c .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/12 19:51 upstream bf152b0b41dc f415556d .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/12 12:39 upstream bf152b0b41dc a4869c92 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/12 02:35 upstream bf152b0b41dc 8f5a7b8c .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/11 22:37 upstream bf152b0b41dc 8f5a7b8c .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/10 23:06 upstream bf152b0b41dc 8f5a7b8c .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/10 17:37 upstream bf152b0b41dc 8f5a7b8c .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/10 08:11 upstream bf152b0b41dc 8f5a7b8c .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/10 00:35 upstream bf152b0b41dc 8f5a7b8c .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/09 17:57 upstream bf152b0b41dc 281e815f .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/09 02:06 upstream bf152b0b41dc 1b20171a .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm32 2021/07/08 10:20 upstream bf152b0b41dc 1aade754 .config log report info WARNING in vkms_vblank_simulate
ci-qemu-upstream-386 2021/05/08 13:24 upstream 18a3c5f7abfd bc5434be .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm64 2021/04/28 19:22 upstream acd3d2859453 77e2b668 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm64-compat 2021/04/28 17:54 upstream acd3d2859453 77e2b668 .config log report info WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-386 2021/04/28 11:54 upstream 57fa2369ab17 805b5003 .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-arm64-mte 2021/04/28 02:00 upstream fafe1e39ed21 805b5003 .config log report info WARNING in vkms_vblank_simulate
ci-upstream-linux-next-kasan-gce-root 2021/03/26 01:35 linux-next b4f20b70784a 6a383ecf .config log report info WARNING in vkms_vblank_simulate
ci-qemu2-riscv64 2021/06/19 06:33 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes 18a3c5f7abfd aba2b2fb .config log report info WARNING in vkms_vblank_simulate
ci-upstream-kasan-gce-selinux-root 2021/01/17 14:25 upstream 0da0a8a0a0e1 813be542 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/10/27 06:03 linux-next 0dec50edcc92 8b3eaf58 .config log report info