syzbot


WARNING in dev_shutdown

Status: closed as invalid on 2022/01/11 13:33
Reported-by: syzbot+@syzkaller.appspotmail.com
First crash: 404d, last: 404d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in dev_shutdown (2) 1 268d 264d 0/24 auto-closed as invalid on 2022/07/07 19:04

Sample crash report:
ax88179_178a 1-1:0.130 eth2: Failed to write reg index 0x0002: -19
ax88179_178a 1-1:0.130 eth2: Failed to write reg index 0x0001: -19
ax88179_178a 1-1:0.130 eth2: Failed to write reg index 0x0002: -19
------------[ cut here ]------------
WARNING: CPU: 1 PID: 22 at net/sched/sch_generic.c:1398 dev_shutdown+0x3cf/0x4a0 net/sched/sch_generic.c:1398
Modules linked in:
CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.15.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:dev_shutdown+0x3cf/0x4a0 net/sched/sch_generic.c:1398
Code: fc 48 c7 c2 a0 b1 d3 86 be 55 00 00 00 48 c7 c7 20 b6 d3 86 c6 05 43 06 af 03 01 e8 34 77 c1 00 e9 f6 fd ff ff e8 51 ae 6b fc <0f> 0b e9 1b ff ff ff 48 8b 7c 24 10 e8 80 e5 9a fc e9 5e fc ff ff
RSP: 0018:ffffc900001875a0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff8881085bb680 RSI: ffffffff84d619cf RDI: ffff88811af74508
RBP: ffff88811af74000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff84d5b86a R11: 0000000000000000 R12: ffff88811af74410
R13: ffff88810ef82c10 R14: ffffed10235ee880 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005573f59bf900 CR3: 000000010dd80000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 unregister_netdevice_many+0x818/0x1750 net/core/dev.c:11036
 unregister_netdevice_queue+0x2dd/0x3c0 net/core/dev.c:10977
 unregister_netdevice include/linux/netdevice.h:2988 [inline]
 unregister_netdev+0x18/0x20 net/core/dev.c:11102
 usbnet_disconnect+0x139/0x270 drivers/net/usb/usbnet.c:1621
 usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458
 __device_release_driver+0x5d7/0x700 drivers/base/dd.c:1205
 device_release_driver_internal drivers/base/dd.c:1236 [inline]
 device_release_driver+0x26/0x40 drivers/base/dd.c:1259
 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529
 device_del+0x502/0xd60 drivers/base/core.c:3583
 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1419
 usb_disconnect.cold+0x27a/0x78e drivers/usb/core/hub.c:2225
 hub_port_connect drivers/usb/core/hub.c:5199 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5488 [inline]
 port_event drivers/usb/core/hub.c:5634 [inline]
 hub_event+0x1c9c/0x4330 drivers/usb/core/hub.c:5716
 process_one_work+0x9bf/0x1620 kernel/workqueue.c:2297
 process_scheduled_works kernel/workqueue.c:2360 [inline]
 worker_thread+0x85c/0x11f0 kernel/workqueue.c:2446
 kthread+0x3c2/0x4a0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-usb 2021/10/24 18:31 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing c26f1c109d21 282f03fb .config log report syz C WARNING in dev_shutdown
ci2-upstream-usb 2021/10/24 14:37 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing c26f1c109d21 282f03fb .config log report info WARNING in dev_shutdown
* Struck through repros no longer work on HEAD.