syzbot


KASAN: slab-out-of-bounds Read in bitmap_ipmac_ext_cleanup
Status: fixed on 2020/03/17 22:09
Reported-by: syzbot+c400f7b04cadb5df6ea7@syzkaller.appspotmail.com
Fix commit: 32c72165dbd0 netfilter: ipset: use bitmap infrastructure completely
First crash: 688d, last: 672d

Cause bisection: introduced by (bisect log) [merge commit]:
commit fa8043017cf83427c7e3d7d8defe2c2133edffea
Author: David S. Miller <davem@davemloft.net>
Date: Fri Jul 5 22:22:28 2019 +0000

  Merge branch 'hsr-bug-fixes'

Crash: general protection fault in send_hsr_supervision_frame (log)
Repro: C 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 (15):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2020/01/24 15:53 upstream 4703d9119972 2e95ab33 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/01/21 19:00 upstream d96d875ef5dd 8eda0b95 .config log report syz C
ci-upstream-kasan-gce-root 2020/01/21 12:57 upstream d96d875ef5dd 8eda0b95 .config log report syz C
ci-upstream-kasan-gce 2020/01/20 20:24 upstream def9d2780727 d2557fb5 .config log report syz C
ci-upstream-kasan-gce-386 2020/01/24 13:30 upstream 4703d9119972 2e95ab33 .config log report syz C
ci-upstream-net-this-kasan-gce 2020/01/24 13:07 net 61678d28d4a4 2e95ab33 .config log report syz C
ci-upstream-net-this-kasan-gce 2020/01/20 01:12 net 09d4f10a5e78 0342f8c7 .config log report syz C
ci-upstream-net-kasan-gce 2020/01/24 13:07 net-next 9bbc8be29d66 2e95ab33 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/02/04 21:46 linux-next 2747d5fdab78 93e5e335 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/01/24 12:36 upstream 4703d9119972 2e95ab33 .config log report
ci-upstream-kasan-gce-root 2020/01/24 12:30 upstream 4703d9119972 2e95ab33 .config log report
ci-upstream-kasan-gce-root 2020/01/24 12:29 upstream 4703d9119972 2e95ab33 .config log report
ci-upstream-kasan-gce 2020/01/24 12:29 upstream 4703d9119972 2e95ab33 .config log report
ci-upstream-net-kasan-gce 2020/01/24 12:49 net-next 9bbc8be29d66 2e95ab33 .config log report
ci-upstream-net-kasan-gce 2020/01/24 12:29 net-next 9bbc8be29d66 2e95ab33 .config log report