syzbot


WARNING in idr_destroy
Status: fixed on 2020/04/15 17:19
Reported-by: syzbot+05835159fe322770fe3d@syzkaller.appspotmail.com
Fix commit: b216a8e7 drm/lease: fix WARNING in idr_destroy
First crash: 123d, last: 108d

Cause bisection: introduced by (bisect log):

commit 5b3709793d151e6e12eb6a38a5da3f7fc2923d3a
Author: Thomas Zimmermann <tzimmermann@suse.de>
Date: Wed May 8 08:26:19 2019 +0000

  drm/ast: Convert AST driver to |struct drm_gem_vram_object|

Crash: KASAN: null-ptr-deref Read in batadv_iv_send_outstanding_bat_ogm_packet (log)
Repro: C syz .config
Patch testing requests:
Created Duration User Patch Repo Result
2020/03/18 02:18 17m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git idr_destroy OK
2020/03/17 04:27 17m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git idr_destroy OK
2020/03/15 23:05 17m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git idr_destroy OK
2020/03/15 10:10 17m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git idr_destroy OK
2020/03/15 07:37 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git drm report log
2020/03/15 03:01 10m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git drm report log
2020/03/15 01:39 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git drm report log
2020/03/15 00:45 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git drm report log
2020/03/15 00:12 10m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git drm report log
2020/03/14 16:00 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git drm report log
2020/03/14 14:06 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git drm report log
2020/03/14 10:37 10m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git drm report log
2020/03/14 05:49 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git drm report log
2020/03/14 02:09 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git drm report log

Sample crash report:

Crashes (5):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-smack-root 2020/03/03 07:48 upstream 63623fd4 c88c7b75 .config log report syz C airlied@linux.ie, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org
ci-upstream-kasan-gce-root 2020/03/18 09:38 upstream ac309e77 97bc55ce .config log report airlied@linux.ie, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org
ci-upstream-kasan-gce 2020/03/18 09:25 upstream ac309e77 97bc55ce .config log report airlied@linux.ie, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org
ci-upstream-kasan-gce-smack-root 2020/03/03 06:11 upstream 63623fd4 c88c7b75 .config log report airlied@linux.ie, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/03/08 07:01 linux-next 770fbb32 2e9971bb .config log report airlied@linux.ie, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de