syzbot


kernel BUG at lib/string.c:LINE! (6)
Status: fixed on 2021/03/10 01:48
Reported-by: syzbot+e86f7c428c8c50db65b4@syzkaller.appspotmail.com
Fix commit: 6cb56218ad9e netfilter: xt_RATEEST: reject non-null terminated string from userspace
First crash: 351d, last: 351d

Cause bisection: introduced by (bisect log) :
commit 2f78788b55baa3410b1ec91a576286abe1ad4d6a
Author: Jakub Jelinek <jakub@redhat.com>
Date: Wed Dec 16 04:43:37 2020 +0000

  ilog2: improve ilog2 for constant arguments

Crash: WARNING in __queue_work (log)
Repro: C syz .config
similar bugs (6):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG at lib/string.c:LINE! C 73 1517d 1532d 3/22 fixed on 2017/10/24 07:07
upstream kernel BUG at lib/string.c:LINE! (5) C done 558 436d 445d 17/22 fixed on 2020/10/15 08:22
upstream kernel BUG at lib/string.c:LINE! (2) syz 2 1363d 1362d 4/22 fixed on 2018/03/23 18:14
upstream kernel BUG in sg_write 3 265d 266d 0/22 auto-closed as invalid on 2021/05/17 10:34
upstream kernel BUG at lib/string.c:LINE! (3) C 5 1346d 1347d 6/22 fixed on 2018/04/06 16:37
upstream kernel BUG at lib/string.c:LINE! (4) C 2 1298d 1298d 6/22 fixed on 2018/06/07 13:52

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2020/12/18 15:05 upstream d64c6f96ba86 04201c06 .config log report syz C
ci-upstream-kasan-gce 2020/12/18 14:41 upstream d64c6f96ba86 04201c06 .config log report info