syzbot


BUG: unable to handle kernel NULL pointer dereference in __lookup_slow (2)
Status: upstream: reported C repro on 2021/04/13 05:55
Reported-by: syzbot+11c49ce9d4e7896f3406@syzkaller.appspotmail.com
First crash: 238d, last: 145d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: BUG: unable to handle kernel NULL pointer dereference in lookup_one_len (log)
Repro: C syz .config
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: unable to handle kernel NULL pointer dereference in __lookup_slow C inconclusive done 3 285d 425d 21/22 fixed on 2021/03/10 01:48
linux-4.19 BUG: unable to handle kernel NULL pointer dereference in __lookup_slow (2) C done 15 107d 231d 1/1 fixed on 2021/09/13 16:54
linux-4.19 BUG: unable to handle kernel NULL pointer dereference in __lookup_slow C done 23 264d 422d 1/1 fixed on 2021/04/10 11:48

Sample crash report:

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2021/06/27 05:16 linux-next a1f92694393a 9d2ab5df .config log report syz C BUG: unable to handle kernel NULL pointer dereference in __lookup_slow
ci-upstream-kasan-gce-root 2021/07/05 09:52 upstream 3dbdb38e2869 55aa55c2 .config log report info BUG: unable to handle kernel NULL pointer dereference in __lookup_slow
ci-upstream-kasan-gce-smack-root 2021/04/03 16:45 upstream d93a0d43e3d0 6a81331a .config log report info BUG: unable to handle kernel NULL pointer dereference in __lookup_slow
ci-upstream-linux-next-kasan-gce-root 2021/06/27 04:01 linux-next a1f92694393a 9d2ab5df .config log report info BUG: unable to handle kernel NULL pointer dereference in __lookup_slow