syzbot


UBSAN: shift-out-of-bounds in std_validate
Status: fixed on 2021/04/09 19:46
Reported-by: syzbot+42d8c7c3d3e594b34346@syzkaller.appspotmail.com
Fix commit: 048c96e28674 media: v4l2-ctrls.c: fix shift-out-of-bounds in std_validate
First crash: 323d, last: 323d

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 std_validate (log)
Repro: C syz .config

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2021/01/19 17:41 upstream 1e2a199f6ccd 63631df1 .config log report syz C UBSAN: shift-out-of-bounds in std_validate
ci-upstream-kasan-gce-root 2021/01/19 17:27 upstream 1e2a199f6ccd 63631df1 .config log report info UBSAN: shift-out-of-bounds in std_validate