syzbot


KASAN: use-after-free Read in root_remove_peer_lists
Status: fixed on 2020/02/18 14:31
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 9981159f wireguard: allowedips: fix use-after-free in root_remove_peer_lists
First crash: 20d, last: 20d

Cause bisection: introduced by (bisect log):

commit e7096c131e5161fa3b8e52a650d7719d2857adfd
Author: Jason A. Donenfeld <Jason@zx2c4.com>
Date: Sun Dec 8 23:27:34 2019 +0000

  net: WireGuard secure network tunnel

Crash: KASAN: use-after-free Read in root_remove_peer_lists (log)
Repro: C syz .config

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-net-kasan-gce 2020/02/01 13:09 net-next 9f68e365 0eb59c27 .config log report syz C Jason@zx2c4.com, davem@davemloft.net, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, wireguard@lists.zx2c4.com
ci-upstream-net-kasan-gce 2020/02/01 12:40 net-next 9f68e365 0eb59c27 .config log report Jason@zx2c4.com, davem@davemloft.net, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, wireguard@lists.zx2c4.com