syzbot


UBSAN: shift-out-of-bounds in tcf_police_init
Status: fixed on 2021/03/11 07:37
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: e4bedf48aaa5 net_sched: reject silly cell_log in qdisc_get_rtab()
First crash: 359d, last: 323d

Cause bisection: introduced by (bisect log) [merge commit]:
commit 345464fb760d1b772e891538b498e111c588b692
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon Sep 2 01:45:28 2019 +0000

  Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Crash: general protection fault in batadv_iv_ogm_queue_add (log)
Repro: C syz .config

Sample crash report:

Crashes (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2020/12/14 05:59 linux-next 14240d4c5b25 b22a7ec3 .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/01/19 21:30 upstream 1e2a199f6ccd 63631df1 .config log report info UBSAN: shift-out-of-bounds in tcf_police_init
ci-upstream-kasan-gce-root 2021/01/19 19:13 upstream 1e2a199f6ccd 63631df1 .config log report info UBSAN: shift-out-of-bounds in tcf_police_init
ci-upstream-kasan-gce-selinux-root 2021/01/19 18:10 upstream 1e2a199f6ccd 63631df1 .config log report info UBSAN: shift-out-of-bounds in tcf_police_init
ci-upstream-net-kasan-gce 2021/01/19 18:24 net-next 99d518970c5a 63631df1 .config log report info UBSAN: shift-out-of-bounds in tcf_police_init
ci-upstream-linux-next-kasan-gce-root 2020/12/14 06:09 linux-next 14240d4c5b25 b22a7ec3 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/12/14 06:01 linux-next 14240d4c5b25 b22a7ec3 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/12/14 05:43 linux-next 14240d4c5b25 b22a7ec3 .config log report info