syzbot


WARNING in netdev_queue_update_kobjects

Status: auto-closed as invalid on 2022/03/06 23:23
Reported-by: syzbot+@syzkaller.appspotmail.com
First crash: 392d, last: 361d

Sample crash report:
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed
bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
------------[ cut here ]------------
sysfs group 'byte_queue_limits' not found for kobject 'tx-0'
WARNING: CPU: 0 PID: 20528 at fs/sysfs/group.c:278 sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:278
Modules linked in:
CPU: 0 PID: 20528 Comm: kworker/u4:9 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:278
Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 37 48 8b 33 48 c7 c7 40 79 9d 89 e8 e1 26 01 07 <0f> 0b eb 98 e8 b1 d5 c9 ff e9 01 ff ff ff 48 89 df e8 a4 d5 c9 ff
RSP: 0018:ffffc90003bff950 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffffff8a8e2e00 RCX: 0000000000000000
RDX: ffff88803c88d700 RSI: ffffffff815f39c8 RDI: fffff5200077ff1c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815ed7ae R11: 0000000000000000 R12: ffff88802cb1d818
R13: ffffffff8a8e2dc0 R14: ffff88807cce9b8c R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f336df91058 CR3: 00000000218f7000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 netdev_queue_update_kobjects+0x308/0x460 net/core/net-sysfs.c:1723
 remove_queue_kobjects net/core/net-sysfs.c:1822 [inline]
 netdev_unregister_kobject+0x15b/0x1f0 net/core/net-sysfs.c:1972
 unregister_netdevice_many+0xd1f/0x1790 net/core/dev.c:11101
 default_device_exit_batch+0x2fa/0x3c0 net/core/dev.c:11604
 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:171
 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:593
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Crashes (6):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2021/11/05 07:38 upstream d4439a1189f9 4c1be0be .config log report info WARNING in netdev_queue_update_kobjects
ci-upstream-net-kasan-gce 2021/12/06 23:19 net-next ce83278f313c 0230ba3e .config log report info WARNING in netdev_queue_update_kobjects
ci-upstream-net-kasan-gce 2021/11/19 00:02 net-next bb8cecf8ba12 31a30fc0 .config log report info WARNING in netdev_queue_update_kobjects
ci-upstream-net-kasan-gce 2021/11/18 23:00 net-next bb8cecf8ba12 31a30fc0 .config log report info WARNING in netdev_queue_update_kobjects
ci-upstream-net-kasan-gce 2021/11/18 20:18 net-next bb8cecf8ba12 31a30fc0 .config log report info WARNING in netdev_queue_update_kobjects
ci-upstream-net-kasan-gce 2021/11/18 08:59 net-next 75082e7f4680 cafff8b6 .config log report info WARNING in netdev_queue_update_kobjects
* Struck through repros no longer work on HEAD.