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unregister_netdevice: waiting for DEV to become free

Status: fixed on 2018/08/08 18:10
Reported-by: syzbot+2dfb68e639f0621b19fb@syzkaller.appspotmail.com
Fix commit: 8cc88773855f xfrm: fix missing dst_release() after policy blocking lbcast and multicast
First crash: 2756d, last: 2644d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
unregister_netdevice: waiting for DEV to become free 6 (8) 2018/08/01 09:14
▶ ▼ Similar bugs (16)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream unregister_netdevice: waiting for DEV to become free (3) 2 C 1864 2028d 2090d 15/29 fixed on 2020/04/15 17:19
upstream unregister_netdevice: waiting for DEV to become free (6) 2 C error 13128 1336d 1455d 20/29 fixed on 2022/03/08 16:11
linux-4.14 unregister_netdevice: waiting for DEV to become free 2 C done 120 1951d 2390d 1/1 fixed on 2020/08/02 06:53
linux-5.15 unregister_netdevice: waiting for DEV to become free missing-backport origin:upstream 2 C done 9221 4h34m 972d 0/3 upstream: reported C repro on 2023/03/07 22:57
android-49 unregister_netdevice: waiting for DEV to become free 2 C 52164 2172d 2399d 0/3 public: reported C repro on 2019/04/11 08:44
android-44 unregister_netdevice: waiting for DEV to become free 2 C 4307 2234d 2399d 0/2 public: reported C repro on 2019/04/11 08:44
linux-4.14 unregister_netdevice: waiting for DEV to become free (2) fat hfsplus bfs vfs gfs2 udf xfs reiserfs sysv btrfs f2fs 2 C 651522 973d 1909d 0/1 upstream: reported C repro on 2020/08/13 09:52
android-414 unregister_netdevice: waiting for DEV to become free 2 1231 2175d 2397d 0/1 auto-closed as invalid on 2020/02/19 10:10
upstream unregister_netdevice: waiting for DEV to become free (4) 2 C done 50394 1700d 1903d 19/29 fixed on 2021/03/10 01:48
linux-6.6 unregister_netdevice: waiting for DEV to become free origin:lts-only 2 C inconclusive 229 2h56m 139d 0/2 upstream: reported C repro on 2025/06/18 00:40
linux-6.1 unregister_netdevice: waiting for DEV to become free origin:upstream missing-backport 2 C inconclusive 3469 25m 972d 0/3 upstream: reported C repro on 2023/03/07 18:05
upstream unregister_netdevice: waiting for DEV to become free (8) net 2 C done 412762 8m 878d 18/29 upstream: reported C repro on 2023/06/10 01:34
upstream unregister_netdevice: waiting for DEV to become free (2) 2 C done 385621 2090d 2637d 15/29 fixed on 2020/02/14 01:19
linux-4.19 unregister_netdevice: waiting for DEV to become free 2 C 5316 973d 2399d 0/1 upstream: reported C repro on 2019/04/10 19:11
upstream unregister_netdevice: waiting for DEV to become free (5) 2 C done 40035 1455d 1700d 20/29 fixed on 2021/11/10 00:50
upstream unregister_netdevice: waiting for DEV to become free (7) 2 C inconclusive 20422 880d 1082d 22/29 fixed on 2023/06/08 14:41

Sample crash report:
8021q: adding VLAN 0 to HW filter on device team0
8021q: adding VLAN 0 to HW filter on device team0
8021q: adding VLAN 0 to HW filter on device team0
8021q: adding VLAN 0 to HW filter on device team0
8021q: adding VLAN 0 to HW filter on device team0
unregister_netdevice: waiting for ip6tnl0 to become free. Usage count = 1

Crashes (170521):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/07/29 20:10 upstream a26fb01c2879 0824d7a1 .config console log report syz C ci-upstream-kasan-gce-root
2018/07/29 17:33 upstream a26fb01c2879 0824d7a1 .config console log report syz C ci-upstream-kasan-gce
2018/07/29 17:28 upstream a26fb01c2879 0824d7a1 .config console log report syz C ci-upstream-kasan-gce-root
2018/06/20 16:56 upstream 81e97f01371f 095ef806 .config console log report syz C ci-upstream-kasan-gce
2018/04/21 12:03 upstream 83beed7b2b26 ca03d688 .config console log report syz C ci-upstream-kasan-gce
2018/08/02 01:35 net-next-old fea49f60c9b7 0a7cf4ec .config console log report syz C ci-upstream-net-kasan-gce
2018/07/30 20:55 linux-next d1e0b8e0cb7a 1a381291 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2018/07/29 19:37 linux-next d1e0b8e0cb7a 0824d7a1 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2018/04/20 23:58 https://github.com/google/kmsan.git master 48c6a2b0ab1b cc402841 .config console log report syz C ci-upstream-kmsan-gce
2018/08/02 06:39 upstream 44960f2a7b63 0a7cf4ec .config console log report syz ci-upstream-kasan-gce-root
2018/08/02 05:06 upstream 44960f2a7b63 0a7cf4ec .config console log report syz ci-upstream-kasan-gce
2018/07/27 16:18 upstream cd3f77d74ac3 788351b1 .config console log report syz ci-upstream-kasan-gce-root
2018/06/10 11:55 upstream a16afaf7928b 866118af .config console log report syz ci-upstream-kasan-gce-root
2018/07/29 17:26 upstream a26fb01c2879 0824d7a1 .config console log report syz ci-upstream-kasan-gce-386
2018/06/20 16:50 upstream 81e97f01371f 095ef806 .config console log report syz ci-upstream-kasan-gce-386
2018/07/27 16:18 net-old 101f0cd4f221 788351b1 .config console log report syz ci-upstream-net-this-kasan-gce
2018/07/27 15:55 net-next-old 19725496da56 788351b1 .config console log report syz ci-upstream-net-kasan-gce
2018/08/02 18:45 linux-next d237c54d5b28 0a7cf4ec .config console log report syz ci-upstream-linux-next-kasan-gce-root
2018/08/02 04:50 linux-next d9bd94c0bcaa 0a7cf4ec .config console log report syz ci-upstream-linux-next-kasan-gce-root
2018/07/27 16:16 linux-next d1e0b8e0cb7a 788351b1 .config console log report syz ci-upstream-linux-next-kasan-gce-root
2018/08/08 18:10 upstream 1236568ee3cb ddeb9f8d .config console log report ci-upstream-kasan-gce
2018/08/08 18:05 upstream 1236568ee3cb ddeb9f8d .config console log report ci-upstream-kasan-gce
2018/08/08 17:19 upstream 1236568ee3cb ddeb9f8d .config console log report ci-upstream-kasan-gce-root
2018/08/08 17:05 upstream 1236568ee3cb ddeb9f8d .config console log report ci-upstream-kasan-gce
2018/04/19 14:06 upstream 87ef12027b9b 3642839c .config console log report ci-upstream-kasan-gce-root
2018/08/08 15:07 upstream 1236568ee3cb ddeb9f8d .config console log report ci-upstream-kasan-gce-386
2018/08/08 17:12 bpf 74682128c6e4 ddeb9f8d .config console log report ci-upstream-bpf-kasan-gce
2018/08/08 16:44 bpf 74682128c6e4 ddeb9f8d .config console log report ci-upstream-bpf-kasan-gce
2018/08/08 16:26 bpf 74682128c6e4 ddeb9f8d .config console log report ci-upstream-bpf-kasan-gce
2018/08/08 15:54 bpf 74682128c6e4 ddeb9f8d .config console log report ci-upstream-bpf-kasan-gce
2018/08/08 15:34 bpf 74682128c6e4 ddeb9f8d .config console log report ci-upstream-bpf-kasan-gce
2018/08/08 15:34 net-old 0dcb82254d65 ddeb9f8d .config console log report ci-upstream-net-this-kasan-gce
2018/08/08 14:51 net-old 0dcb82254d65 ddeb9f8d .config console log report ci-upstream-net-this-kasan-gce
2018/08/08 14:32 bpf 74682128c6e4 ddeb9f8d .config console log report ci-upstream-bpf-kasan-gce
2018/08/08 14:17 bpf 74682128c6e4 ddeb9f8d .config console log report ci-upstream-bpf-kasan-gce
2018/08/08 17:57 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 17:49 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 17:40 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 17:32 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 17:24 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 16:55 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 16:35 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 16:19 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 16:03 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 15:43 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 15:24 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 15:15 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 14:59 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 14:44 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 14:44 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 14:26 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 14:04 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 13:52 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 13:43 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 13:43 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 13:32 bpf-next 85fc4b16aaf0 ddeb9f8d .config console log report ci-upstream-bpf-next-kasan-gce
2018/08/08 13:24 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 13:17 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 13:07 net-next-old e93dd8a1ac31 ddeb9f8d .config console log report ci-upstream-net-kasan-gce
2018/08/08 16:10 linux-next 6b522b734da2 ddeb9f8d .config console log report ci-upstream-linux-next-kasan-gce-root
2018/07/24 12:21 https://github.com/google/kmsan.git master d1c2a46a46f6 4969639c .config console log report ci-upstream-kmsan-gce
* Struck through repros no longer work on HEAD.