syzbot


UBSAN: shift-out-of-bounds in est_timer
Status: fixed on 2021/03/11 07:37
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: dd5e073381f2 net_sched: gen_estimator: support large ewma log
First crash: 352d, last: 278d

Cause bisection: introduced by (bisect log) [release commit]:
commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun Sep 15 21:19:32 2019 +0000

  Linux 5.3

Crash: UBSAN: undefined-behaviour in est_timer (log)
Repro: C syz .config

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2021/03/01 20:50 upstream 7a7fd0de4a98 04201c06 .config log report syz C
Crashes (73):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/12/19 18:00 upstream 3644e2d2dda7 04201c06 .config log report syz C
ci-upstream-net-this-kasan-gce 2020/12/19 18:43 net 1e72faedcd58 04201c06 .config log report syz C
ci-upstream-net-this-kasan-gce 2020/12/19 16:35 net 1e72faedcd58 04201c06 .config log report syz C
ci-upstream-kasan-gce 2021/01/20 03:27 upstream 1e2a199f6ccd 63631df1 .config log report info UBSAN: shift-out-of-bounds in est_timer
ci-upstream-kasan-gce 2021/01/19 03:20 upstream 19c329f68089 63631df1 .config log report info UBSAN: shift-out-of-bounds in est_timer
ci-upstream-kasan-gce 2021/01/18 17:56 upstream 19c329f68089 63631df1 .config log report info UBSAN: shift-out-of-bounds in est_timer
ci-upstream-kasan-gce 2021/01/18 08:36 upstream a1339d6355ac fd103621 .config log report info UBSAN: shift-out-of-bounds in est_timer
ci-upstream-kasan-gce-smack-root 2021/01/18 04:14 upstream a1339d6355ac fd103621 .config log report info UBSAN: shift-out-of-bounds in est_timer
ci-upstream-net-kasan-gce 2021/01/20 14:16 net-next 7b8fc0103bb5 d4f4eca5 .config log report info UBSAN: shift-out-of-bounds in est_timer
ci-upstream-net-kasan-gce 2021/01/19 14:14 net-next 99d518970c5a 63631df1 .config log report info UBSAN: shift-out-of-bounds in est_timer
ci-upstream-net-kasan-gce 2021/01/19 08:55 net-next 220723dc3bcf 63631df1 .config log report info UBSAN: shift-out-of-bounds in est_timer
ci-upstream-net-kasan-gce 2021/01/19 04:28 net-next 220723dc3bcf 63631df1 .config log report info UBSAN: shift-out-of-bounds in est_timer
ci-upstream-net-kasan-gce 2021/01/18 11:14 net-next 213b97b12580 fd103621 .config log report info UBSAN: shift-out-of-bounds in est_timer
ci-upstream-net-kasan-gce 2021/01/18 10:01 net-next 213b97b12580 fd103621 .config log report info UBSAN: shift-out-of-bounds in est_timer
ci-upstream-kasan-gce 2021/01/16 13:24 upstream 1d94330a437a 65a7a854 .config log report info
ci-upstream-kasan-gce-smack-root 2021/01/15 10:07 upstream 5ee88057889b 65a7a854 .config log report info
ci-upstream-kasan-gce-root 2021/01/11 07:07 upstream 0653161f0fac 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/11 05:09 upstream 0653161f0fac 2c1f2513 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/11 02:09 upstream 0653161f0fac 2c1f2513 .config log report info
ci-upstream-kasan-gce 2021/01/11 01:00 upstream 0653161f0fac 2c1f2513 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/10 23:36 upstream 0653161f0fac 2c1f2513 .config log report info
ci-upstream-kasan-gce 2020/12/24 15:27 upstream 58cf05f597b0 c2c1d1dd .config log report info
ci-upstream-kasan-gce 2020/12/21 17:59 upstream e37b12e4bb21 04201c06 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/21 14:27 upstream e37b12e4bb21 04201c06 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/21 12:00 upstream e37b12e4bb21 04201c06 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/21 04:50 upstream 6a447b0e3151 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/21 01:48 upstream 6a447b0e3151 04201c06 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/20 06:09 upstream 467f8165a2b0 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/20 06:08 upstream 467f8165a2b0 04201c06 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/19 15:24 upstream 3644e2d2dda7 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/19 15:20 upstream 3644e2d2dda7 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/17 07:59 upstream 5e60366d56c6 04201c06 .config log report info
ci-upstream-kasan-gce-386 2021/01/11 03:28 upstream 0653161f0fac 2c1f2513 .config log report info
ci-upstream-kasan-gce-386 2020/12/20 06:10 upstream 467f8165a2b0 04201c06 .config log report info
ci-upstream-kasan-gce-386 2020/12/19 15:24 upstream 3644e2d2dda7 04201c06 .config log report info
ci-upstream-net-this-kasan-gce 2021/01/15 22:00 net 146620506274 65a7a854 .config log report info
ci-upstream-net-this-kasan-gce 2021/01/11 00:17 net f97844f9c518 2c1f2513 .config log report info
ci-upstream-net-this-kasan-gce 2021/01/10 21:48 net f97844f9c518 2c1f2513 .config log report info
ci-upstream-net-this-kasan-gce 2020/12/26 10:20 net 1f45dc220667 821e0b09 .config log report info
ci-upstream-net-this-kasan-gce 2020/12/23 01:07 net 2575bc1aa9d5 04201c06 .config log report info
ci-upstream-net-this-kasan-gce 2020/12/20 06:18 net fec6079b2eea 04201c06 .config log report info
ci-upstream-net-this-kasan-gce 2020/12/19 15:19 net 1e72faedcd58 04201c06 .config log report info
ci-upstream-net-kasan-gce 2021/01/17 09:02 net-next c761b2df9df0 65a7a854 .config log report info
ci-upstream-net-kasan-gce 2021/01/16 23:21 net-next 9ab7e76aefc9 65a7a854 .config log report info
ci-upstream-net-kasan-gce 2021/01/16 00:48 net-next e7fa5c80defe 65a7a854 .config log report info
ci-upstream-net-kasan-gce 2021/01/15 20:41 net-next 1d9f03c0a15f 65a7a854 .config log report info
ci-upstream-net-kasan-gce 2021/01/15 00:33 net-next 0ae5b43d6dde 65a7a854 .config log report info
ci-upstream-net-kasan-gce 2021/01/14 20:06 net-next 0ae5b43d6dde 65a7a854 .config log report info
ci-upstream-net-kasan-gce 2021/01/14 11:44 net-next 679500e385fc 269d24e8 .config log report info
ci-upstream-net-kasan-gce 2021/01/14 07:27 net-next 679500e385fc 269d24e8 .config log report info
ci-upstream-net-kasan-gce 2021/01/13 21:39 net-next f50e2f9f7916 a945f0a3 .config log report info
ci-upstream-net-kasan-gce 2021/01/13 16:33 net-next f50e2f9f7916 a945f0a3 .config log report info
ci-upstream-net-kasan-gce 2021/01/05 21:19 net-next 3db1a3fa9880 a0234d98 .config log report info
ci-upstream-net-kasan-gce 2021/01/04 08:45 net-next 3db1a3fa9880 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2021/01/03 22:38 net-next 3db1a3fa9880 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2021/01/03 17:16 net-next 3db1a3fa9880 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2021/01/03 14:32 net-next 3db1a3fa9880 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2021/01/03 10:18 net-next 3db1a3fa9880 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2021/01/03 09:17 net-next 3db1a3fa9880 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2021/01/03 00:00 net-next 3db1a3fa9880 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2021/01/02 20:30 net-next 3db1a3fa9880 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2021/01/02 16:24 net-next 3db1a3fa9880 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2021/01/02 05:55 net-next 3db1a3fa9880 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2021/01/01 22:44 net-next 3db1a3fa9880 79264ae3 .config log report info
ci-upstream-net-kasan-gce 2020/12/30 04:01 net-next 3db1a3fa9880 0fa352f2 .config log report info
ci-upstream-net-kasan-gce 2020/12/29 06:18 net-next 3db1a3fa9880 8259d56c .config log report info
ci-upstream-net-kasan-gce 2020/12/28 09:50 net-next 3db1a3fa9880 2242f77f .config log report info
ci-upstream-net-kasan-gce 2020/12/27 21:43 net-next 3db1a3fa9880 2242f77f .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/12/20 06:10 linux-next 0d52778b8710 04201c06 .config log report info