syzbot


KASAN: slab-out-of-bounds Read in bitmap_ip_add
Status: fixed on 2020/03/25 19:36
Reported-by: syzbot+f3e96783d74ee8ea9aa3@syzkaller.appspotmail.com
Fix commit: 32c72165dbd0 netfilter: ipset: use bitmap infrastructure completely
First crash: 607d, last: 596d

Cause bisection: introduced by (bisect log) :
commit 751ad98d5f881df91ba47e013b82422912381e8e
Author: Marco Elver <elver@google.com>
Date: Fri Jul 12 03:54:00 2019 +0000

  asm-generic, x86: add bitops instrumentation for KASAN

Crash: KASAN: slab-out-of-bounds Read in bitmap_ip_add (log)
Repro: syz .config

Fix bisection: fixed by (bisect log) :
commit 32c72165dbd0e246e69d16a3ad348a4851afd415
Author: Kadlecsik Jรณzsef <kadlec@blackhole.kfki.hu>
Date: Sun Jan 19 21:06:49 2020 +0000

  netfilter: ipset: use bitmap infrastructure completely


Sample crash report:

Crashes (7):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2020/01/19 12:37 upstream 244dc2689085 bc8bc756 .config log report syz
ci-upstream-kasan-gce-root 2020/01/19 09:13 upstream 244dc2689085 bc8bc756 .config log report syz
ci-upstream-kasan-gce-smack-root 2020/01/19 01:47 upstream 244dc2689085 bc8bc756 .config log report syz
ci-upstream-kasan-gce-386 2020/01/19 07:08 upstream 244dc2689085 bc8bc756 .config log report syz
ci-upstream-net-this-kasan-gce 2020/01/19 07:31 net e02d9c4c68dc bc8bc756 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/01/30 09:07 linux-next 2747d5fdab78 5ed23f9a .config log report syz
ci-upstream-kasan-gce 2020/01/22 11:39 upstream d96d875ef5dd 8eda0b95 .config log report