syzbot


KASAN: use-after-free Read in kfree_skb (3)
Status: upstream: reported C repro on 2019/05/07 09:36
Reported-by: syzbot+dcb1305dd05699c40640@syzkaller.appspotmail.com
First crash: 55d, last: 6d12h

Bisection: introduced by (bisect log):

commit 5ec8c48a6235175f7ff59ed1acbe91d4d0398026
Author: Thierry Reding <thierry.reding@gmail.com>
Date: Thu Jul 6 15:16:47 2017 +0000

  Merge branch 'for-4.13/drivers' into for-next

Tree: upstream
Crash: unregister_netdevice: waiting for DEV to become free (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream KASAN: use-after-free Read in kfree_skb 1 238d 238d 12/13 fixed on 2018/11/12 21:25
upstream KASAN: use-after-free Read in kfree_skb (2) C 66 178d 188d 12/13 fixed on 2019/01/11 01:22

Sample crash report:

All crashes (7):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-root 2019/06/10 14:53 upstream d1fdb6d8 0159583c .config log report syz C johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org
ci-upstream-kasan-gce-selinux-root 2019/06/10 16:29 upstream d1fdb6d8 0159583c .config log report syz C johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org
ci-upstream-kasan-gce-selinux-root 2019/04/22 17:32 upstream 085b7755 0a77c33c .config log report johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org
ci-upstream-kasan-gce-selinux-root 2019/06/10 14:12 upstream d1fdb6d8 0159583c .config log report johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org
ci-upstream-kasan-gce-root 2019/06/10 14:07 upstream d1fdb6d8 0159583c .config log report johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org
ci-upstream-kasan-gce-smack-root 2019/05/03 08:29 upstream ea986679 1bfa09b9 .config log report johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org
ci-upstream-linux-next-kasan-gce-root 2019/06/10 14:13 linux-next 3f310e51 0159583c .config log report johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org