syzbot


BUG: unable to handle kernel paging request in cfb_imageblit
Status: fixed on 2020/12/23 11:40
Reported-by: syzbot+dfd0b1c6705301cc4847@syzkaller.appspotmail.com
Fix commit: a49145acfb97 fbmem: add margin check to fb_check_caps()
First crash: 386d, last: 340d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) :
commit a49145acfb975d921464b84fe00279f99827d816
Author: George Kennedy <george.kennedy@oracle.com>
Date: Tue Jul 7 19:26:03 2020 +0000

  fbmem: add margin check to fb_check_caps()

similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 BUG: unable to handle kernel paging request in cfb_imageblit C 40 21d 359d 0/1 upstream: reported C repro on 2020/10/30 06:53
linux-4.19 BUG: unable to handle kernel paging request in cfb_imageblit C error 118 6h00m 412d 0/1 upstream: reported C repro on 2020/09/06 22:24
upstream BUG: unable to handle kernel paging request in cfb_imageblit (2) 1 42d 38d 0/22 upstream: reported on 2021/09/16 12:36

Sample crash report:

Crashes (30):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2020/10/04 08:41 upstream 22fbc037cd32 1a3f9408 .config log report syz C
ci-upstream-kasan-gce-root 2020/10/12 18:05 upstream bbf5c979011a d32b0bbf .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/11 23:37 upstream 3dd0130f2430 4a77ae0b .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/11 22:51 upstream 3dd0130f2430 4a77ae0b .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/11 01:45 upstream da690031a5d6 4a77ae0b .config log report info
ci-upstream-kasan-gce-root 2020/10/10 05:57 upstream 6f2f486d57c4 93817d89 .config log report info
ci-upstream-kasan-gce-root 2020/10/10 04:51 upstream 6f2f486d57c4 93817d89 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/10/10 04:50 upstream 6f2f486d57c4 93817d89 .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/10 04:20 upstream 6f2f486d57c4 93817d89 .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/10 03:25 upstream 6f2f486d57c4 93817d89 .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/09 12:57 upstream 583090b1b823 d81b165e .config log report info
ci-upstream-kasan-gce 2020/10/08 22:35 upstream 3d006ee42dde 92390980 .config log report info
ci-upstream-kasan-gce 2020/10/08 22:29 upstream 3d006ee42dde 92390980 .config log report info
ci-upstream-kasan-gce 2020/10/08 21:40 upstream 3d006ee42dde 92390980 .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/08 14:36 upstream c85fb28b6f99 92390980 .config log report info
ci-upstream-kasan-gce 2020/10/07 09:15 upstream c85fb28b6f99 1880b4a9 .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/06 03:21 upstream 7575fdda569b 1880b4a9 .config log report info
ci-upstream-kasan-gce 2020/10/06 02:41 upstream 7575fdda569b 1880b4a9 .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/05 03:03 upstream 549738f15da0 5ef9c291 .config log report info
ci-upstream-kasan-gce-root 2020/10/04 12:29 upstream 22fbc037cd32 5ef9c291 .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/04 12:04 upstream 22fbc037cd32 5ef9c291 .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/03 23:45 upstream 22fbc037cd32 1a3f9408 .config log report info
ci-upstream-kasan-gce 2020/10/03 14:17 upstream d3d45f8220d6 2653fa43 .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/02 17:57 upstream 472e5b056f00 4969d6ca .config log report info
ci-upstream-kasan-gce-root 2020/10/02 17:41 upstream 472e5b056f00 4969d6ca .config log report info
ci-upstream-kasan-gce-selinux-root 2020/10/02 17:38 upstream 472e5b056f00 4969d6ca .config log report info
ci-upstream-kasan-gce-386 2020/11/18 11:15 upstream 0fa8ee0d9ab9 09323409 .config log report info
ci-upstream-kasan-gce-386 2020/10/11 05:02 upstream da690031a5d6 4a77ae0b .config log report info
ci-upstream-kasan-gce-386 2020/10/03 17:07 upstream d3d45f8220d6 2653fa43 .config log report info
ci-upstream-kasan-gce-386 2020/10/02 18:21 upstream 472e5b056f00 4969d6ca .config log report info