syzbot


KASAN: stack-out-of-bounds Write in bitmap_from_arr32
Status: fixed on 2021/03/10 01:48
Reported-by: syzbot+9d39fa49d4df294aab93@syzkaller.appspotmail.com
Fix commit: a770bf515613 ethtool: fix stack overflow in ethnl_parse_bitset()
First crash: 377d, last: 376d

Cause bisection: introduced by (bisect log) :
commit 0980bfcd6954f124e40a000b85335c197764de14
Author: Michal Kubecek <mkubecek@suse.cz>
Date: Thu Mar 12 20:07:58 2020 +0000

  ethtool: set netdev features with FEATURES_SET request

Crash: KASAN: stack-out-of-bounds Write in bitmap_from_arr32 (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-net-this-kasan-gce 2020/11/26 21:02 net cbf3d60329c4 1d2b823e .config log report syz C
ci-upstream-net-kasan-gce 2020/11/26 18:21 net-next 594e31bcebd6 1d2b823e .config log report syz C