syzbot


WARNING in media_create_pad_link
Status: upstream: reported C repro on 2020/05/14 20:18
Reported-by: syzbot+dd320d114deb3f5bb79b@syzkaller.appspotmail.com
First crash: 159d, last: 66d

Cause bisection: introduced by (bisect log):

commit f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10
Author: Andrey Konovalov <andreyknvl@google.com>
Date: Mon Feb 24 16:13:03 2020 +0000

  usb: gadget: add raw-gadget interface

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

Fix bisection: fixed by (bisect log):

commit adb6e6ac20eedcf1dce19dc75b224e63c0828ea1
Author: Bastien Nocera <hadess@hadess.net>
Date: Tue Aug 18 11:04:43 2020 +0000

  USB: Also match device drivers using the ->match vfunc


Sample crash report:

Crashes (14):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-root 2020/05/29 22:00 upstream 75caf310 3905eaae .config log report syz C laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci-upstream-kasan-gce 2020/05/28 22:06 upstream b0c3ba31 0d951763 .config log report syz C laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci-upstream-kasan-gce-selinux-root 2020/05/21 21:34 upstream b85051e7 1f30020f .config log report syz C laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci-upstream-kasan-gce-root 2020/05/21 19:55 upstream b85051e7 1f30020f .config log report syz C laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci-upstream-kasan-gce-smack-root 2020/05/21 16:00 upstream b85051e7 1f30020f .config log report syz C laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci-upstream-linux-next-kasan-gce-root 2020/05/28 22:01 linux-next ff387fc2 0d951763 .config log report syz C laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci2-upstream-usb 2020/05/28 21:37 https://github.com/google/kasan.git usb-fuzzer d19c64b3 c7192a2f .config log report syz C laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci2-upstream-usb 2020/05/14 03:16 https://github.com/google/kasan.git usb-fuzzer 059e7e0f a885920d .config log report syz C laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci-upstream-kasan-gce-386 2020/05/28 22:10 upstream b0c3ba31 0d951763 .config log report syz laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci-upstream-kasan-gce-root 2020/08/14 15:59 upstream a1d21081 424dd8e7 .config log report laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci-upstream-kasan-gce-selinux-root 2020/07/03 14:33 upstream cd77006e bed10395 .config log report laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci2-upstream-usb 2020/06/28 12:22 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing b3a5ce87 a2cdad9d .config log report laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci2-upstream-usb 2020/06/16 14:49 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing b3a9e3b9 4ea9d964 .config log report laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com
ci2-upstream-usb 2020/06/12 17:08 https://github.com/google/kasan.git usb-fuzzer b791d1bd 3036d6fd .config log report laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com