syzbot


KASAN: use-after-free Read in __smsc95xx_mdio_read
Status: upstream: reported C repro on 2020/06/16 10:44
Reported-by: syzbot+a7ebdb01bb2cc165cab6@syzkaller.appspotmail.com
First crash: 104d, last: 104d

Cause bisection: introduced by (bisect log):

commit 54b9aca08c9a141f48beb533ccb9ebcee679e855
Author: David S. Miller <davem@davemloft.net>
Date: Sat May 23 23:54:35 2020 +0000

  Merge branch 'r8169-remove-mask-argument-from-few-ERI-OCP-functions'

Crash: WARNING: ODEBUG bug in netdev_run_todo (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log):

commit 7e23ab72e73bc601b4cf2983382691d9f165c8d1
Author: Ding Xiang <dingxiang@cmss.chinamobile.com>
Date: Mon Mar 30 07:56:26 2020 +0000

  pinctrl: nomadik:remove unneeded variable


Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-selinux-root 2020/06/12 10:39 upstream 7ae77150 58802067 .config log report syz C UNGLinuxDriver@microchip.com, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, steve.glendinning@shawell.net