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unregister_netdevice: waiting for DEV to become free (4)
Status: upstream: reported C repro on 2020/08/19 13:54
Reported-by: syzbot+df400f2f24a1677cd7e0@syzkaller.appspotmail.com
First crash: 278d, last: now

Cause bisection: introduced by (bisect log) :
commit 449325b52b7a6208f65ed67d3484fd7b7184477b
Author: Alexei Starovoitov <ast@kernel.org>
Date: Tue May 22 02:22:29 2018 +0000

  umh: introduce fork_usermode_blob() helper

Crash: KASAN: use-after-free Write in call_usermodehelper_exec_work (log)
Repro: C syz .config
similar bugs (9):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream unregister_netdevice: waiting for DEV to become free (3) C 1864 278d 340d 17/17 fixed on 2020/04/15 17:19
upstream unregister_netdevice: waiting for DEV to become free C 170521 894d 1005d 9/17 fixed on 2018/08/08 18:10
linux-4.14 unregister_netdevice: waiting for DEV to become free C done 120 201d 640d 1/1 fixed on 2020/08/02 06:53
android-49 unregister_netdevice: waiting for DEV to become free C 52164 422d 649d 0/3 public: reported C repro on 2019/04/11 08:44
android-44 unregister_netdevice: waiting for DEV to become free C 4307 483d 649d 0/2 public: reported C repro on 2019/04/11 08:44
linux-4.14 unregister_netdevice: waiting for DEV to become free (2) 46 1d00h 159d 0/1 upstream: reported on 2020/08/13 09:52
android-414 unregister_netdevice: waiting for DEV to become free 1231 425d 647d 0/1 auto-closed as invalid on 2020/02/19 10:10
upstream unregister_netdevice: waiting for DEV to become free (2) C done 385621 340d 887d 16/17 fixed on 2020/02/14 01:19
linux-4.19 unregister_netdevice: waiting for DEV to become free C 1899 5h43m 649d 0/1 upstream: reported C repro on 2019/04/10 19:11

Sample crash report:

Crashes (23387):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce 2021/01/19 00:31 upstream 19c329f6 63631df1 .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2020/09/03 20:51 upstream fc3abb53 abf9ba4f .config log report syz C
ci-upstream-kasan-gce 2020/09/01 13:55 upstream b51594df d5a3ae1f .config log report syz C
ci-upstream-kasan-gce-root 2020/08/31 06:34 upstream dcc5c6f0 d5a3ae1f .config log report syz C
ci-upstream-kasan-gce-root 2020/08/21 08:57 upstream da2968ff 1d75fe45 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/08/20 10:13 upstream 7eac66d0 ed282a3a .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/19 07:20 upstream 18445bf4 e1c29030 .config log report syz C
ci-upstream-kasan-gce-386 2020/08/31 14:28 upstream dcc5c6f0 d5a3ae1f .config log report syz C
ci-upstream-net-this-kasan-gce 2021/01/16 03:24 net b7ba6cfa 65a7a854 .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/14 20:51 net 5b55299e 65a7a854 .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/14 12:32 net a95d25dd 269d24e8 .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/13 02:00 net 1ee527a7 0cdd6185 .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/11 13:07 net f97844f9 2c1f2513 .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/11 08:41 net f97844f9 2c1f2513 .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/11 02:30 net f97844f9 2c1f2513 .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2020/12/31 00:25 net 4bfc4714 ecb8c012 .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2020/12/16 09:55 net 3db1a3fa f213e07e .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/12/16 10:41 net-next efd5a158 f213e07e .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/16 16:47 linux-next b3a3cbde 65a7a854 .config log report syz C linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/09/05 23:45 linux-next 7a695657 abf9ba4f .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/08/22 13:01 linux-next 494d311a 6436ce4b .config log report syz C
ci-upstream-kasan-gce 2021/01/18 00:43 upstream a1339d63 813be542 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/18 01:42 net 66c55602 813be542 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2021/01/18 00:55 net-next 213b97b1 813be542 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2021/01/15 10:02 upstream 14662050 65a7a854 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-kasan-gce 2021/01/01 05:37 upstream f6e1ea19 79264ae3 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-386 2021/01/13 09:00 upstream e609571b 0cdd6185 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-386 2021/01/05 23:49 upstream 36bbbd0e a0234d98 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-386 2020/12/18 13:25 upstream d64c6f96 04201c06 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/16 15:33 net bcd0cf19 65a7a854 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/16 12:44 net b7ba6cfa 65a7a854 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/15 05:59 net 5b55299e 65a7a854 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/14 04:25 net a95d25dd 269d24e8 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/13 03:58 net 1ee527a7 0cdd6185 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/11 16:50 net f97844f9 2c1f2513 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/09 19:54 net c49243e8 2c1f2513 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2021/01/17 08:21 net-next c761b2df 65a7a854 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2021/01/17 07:00 net-next c761b2df 65a7a854 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2021/01/17 01:12 net-next 9ab7e76a 65a7a854 .config log report syz linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2021/01/19 12:24 upstream 1e2a199f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce 2021/01/19 07:24 upstream 1e2a199f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-root 2021/01/19 06:18 upstream 1e2a199f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2021/01/19 05:44 upstream 1e2a199f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2021/01/19 05:25 upstream 1e2a199f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce 2021/01/19 04:55 upstream 1e2a199f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-root 2021/01/19 04:19 upstream 1e2a199f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2021/01/19 04:00 upstream 1e2a199f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce 2021/01/18 23:44 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2021/01/18 21:41 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2021/01/18 19:24 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2021/01/18 16:54 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2021/01/18 16:32 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2021/01/18 16:14 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-root 2021/01/18 15:57 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-root 2021/01/18 15:38 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2021/01/18 15:18 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2021/01/18 14:58 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2021/01/18 12:54 upstream a1339d63 fd103621 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2021/01/18 06:51 upstream a1339d63 fd103621 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce 2021/01/18 05:55 upstream a1339d63 fd103621 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2021/01/18 05:13 upstream a1339d63 fd103621 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2021/01/18 04:33 upstream a1339d63 fd103621 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-386 2021/01/19 04:34 upstream 1e2a199f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-386 2021/01/18 22:52 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-386 2021/01/18 14:08 upstream 19c329f6 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/19 10:39 net 9d9b1ee0 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/19 03:34 net 79267ae2 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/19 02:30 net 79267ae2 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-bpf-kasan-gce 2021/01/19 01:39 bpf e23a8d00 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-bpf-kasan-gce 2021/01/18 18:33 bpf e23a8d00 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce 2021/01/18 14:45 net 66c55602 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2021/01/19 09:38 net-next 99d51897 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2021/01/19 03:39 net-next 220723dc 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2021/01/18 20:47 net-next 220723dc 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2021/01/18 20:29 net-next 220723dc 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-bpf-next-kasan-gce 2021/01/18 13:55 bpf-next 232164e0 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2021/01/18 11:58 net-next 213b97b1 fd103621 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2021/01/18 09:24 net-next 213b97b1 fd103621 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2021/01/18 07:51 net-next 213b97b1 fd103621 .config log report info linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/19 11:22 linux-next b4bb878f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/19 10:07 linux-next b4bb878f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/19 09:28 linux-next b4bb878f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/19 08:28 linux-next b4bb878f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/19 07:47 linux-next b4bb878f 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/18 17:30 linux-next 93bf8b94 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/18 14:32 linux-next 93bf8b94 63631df1 .config log report info linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/18 11:17 linux-next 93bf8b94 fd103621 .config log report info linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/18 10:16 linux-next 93bf8b94 fd103621 .config log report info linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/18 08:28 linux-next 93bf8b94 fd103621 .config log report info linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2021/01/18 04:02 linux-next b3a3cbde fd103621 .config log report info linux-kernel@vger.kernel.org
ci-qemu-upstream 2021/01/10 21:44 upstream 0653161f 2c1f2513 .config log report info linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-386 2021/01/17 14:11 upstream 0da0a8a0 813be542 .config log report info linux-kernel@vger.kernel.org
ci-qemu-upstream-386 2021/01/15 08:31 upstream 14662050 269d24e8 .config log report info linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/04/15 18:45 net-next 63bef48f 3f3c5574 .config log report