syzbot


WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)

Status: upstream: reported C repro on 2022/07/11 06:41
Reported-by: syzbot+20dcf81733d43ddff661@syzkaller.appspotmail.com
First crash: 143d, last: 140d

Cause bisection: introduced by (bisect log) [merge commit]:
commit b1c428b6c3684ee8ddf4137d68b3e8d51d2a700f
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sat Jul 9 18:20:15 2022 +0000

  Merge tag 'i2c-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Crash: WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screenx0 vs. 64x768) (log)
Repro: C syz .config

Fix bisection: failed (bisect log)
Patch testing requests:
Created Duration User Patch Repo Result
2022/10/19 06:30 18m upstream error
2022/10/19 04:30 17m upstream error
2022/10/19 02:30 18m upstream error
2022/10/19 00:30 18m upstream error
2022/10/19 00:30 17m upstream error
2022/10/19 00:30 17m upstream error
2022/10/19 00:30 18m upstream error
2022/10/19 00:30 31m upstream OK log

Sample crash report:
WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)

Crashes (24):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2022/07/10 11:11 upstream b1c428b6c368 b5765a15 .config log report syz C WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce 2022/07/10 05:58 upstream b1c428b6c368 b5765a15 .config log report syz C WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce 2022/07/09 21:55 upstream e5524c2a1fc4 b5765a15 .config log report syz C WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce-selinux-root 2022/07/09 04:07 upstream a471da3100ef b5765a15 .config log report syz C WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce-smack-root 2022/07/09 02:49 upstream a471da3100ef b5765a15 .config log report syz C WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce-root 2022/07/09 02:33 upstream a471da3100ef b5765a15 .config log report syz C WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce 2022/07/09 00:43 upstream a471da3100ef b5765a15 .config log report syz C WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-qemu-upstream 2022/07/09 08:17 upstream a471da3100ef b5765a15 .config log report syz C WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce-selinux-root 2022/07/09 13:52 upstream e5524c2a1fc4 b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce-smack-root 2022/07/09 13:34 upstream e5524c2a1fc4 b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce 2022/07/09 12:34 upstream e5524c2a1fc4 b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce 2022/07/09 09:45 upstream e5524c2a1fc4 b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce-smack-root 2022/07/08 23:32 upstream a471da3100ef b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce-selinux-root 2022/07/08 23:18 upstream a471da3100ef b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce 2022/07/08 22:46 upstream a471da3100ef b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce-root 2022/07/08 21:32 upstream a471da3100ef b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce 2022/07/08 21:21 upstream a471da3100ef b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-qemu-upstream 2022/07/08 20:51 upstream a471da3100ef b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-qemu-upstream 2022/07/08 20:09 upstream a471da3100ef 8442e655 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce-selinux-root 2022/07/08 19:55 upstream a471da3100ef b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-upstream-kasan-gce-root 2022/07/08 18:58 upstream a471da3100ef b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-qemu-upstream-386 2022/07/11 00:05 upstream d9919d43cbf6 b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-qemu-upstream-386 2022/07/09 16:06 upstream e5524c2a1fc4 b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
ci-qemu-upstream-386 2022/07/09 16:06 upstream e5524c2a1fc4 b5765a15 .config log report info WARNING: fbcon: Driver 'vkmsdrmfb' missed to adjust virtual screen size (0x0 vs. 64x768)
* Struck through repros no longer work on HEAD.