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NETDEV WATCHDOG: usb0 (cdc_ether): transmit queue 0 timed out
WARNING: CPU: 1 PID: 4548 at net/sched/sch_generic.c:481 dev_watchdog+0x85d/0xa40 net/sched/sch_generic.c:480
Modules linked in:
CPU: 1 PID: 4548 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:dev_watchdog+0x85d/0xa40 net/sched/sch_generic.c:480
Code: 8d 51 06 01 48 8b 5c 24 20 48 89 df e8 6c cb e3 ff 48 c7 c7 40 5e 22 8b 48 89 de 48 8b 1c 24 48 89 c2 44 89 e1 e8 33 46 b1 01 <0f> 0b e9 51 fe ff ff e8 b7 3f 73 f9 0f 0b e9 33 fe ff ff 89 d9 80
RSP: 0018:ffffc90000dd0af0 EFLAGS: 00010246
RAX: 74b55cb7eb86b500 RBX: ffff88807e208448 RCX: ffff88807d7f5940
RDX: 0000000000000100 RSI: 0000000000000101 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffc90000dd0627 R09: 1ffff920001ba0c4
R10: dffffc0000000000 R11: fffff520001ba0c5 R12: 0000000000000000
R13: ffff88807e208540 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f467bb2a880(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f981874afd0 CR3: 0000000024927000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
 expire_timers kernel/time/timer.c:1699 [inline]
 __run_timers+0x56c/0x810 kernel/time/timer.c:1970
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
 handle_softirqs+0x336/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:lock_is_held include/linux/lockdep.h:292 [inline]
RIP: 0010:___might_sleep+0xd9/0x610 kernel/sched/core.c:9624
Code: 75 1f c6 05 33 62 03 0d 01 48 c7 c7 80 b2 2a 8a be 98 25 00 00 48 c7 c2 c0 b9 2a 8a e8 40 58 63 08 e8 9b 2d 6e 08 85 c0 74 46 <48> c7 c7 60 f0 11 8d be ff ff ff ff e8 c6 29 6e 08 85 c0 74 31 e8
RSP: 0018:ffffc9000309f680 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff92000613ed8 RCX: ffff88807d7f5940
RDX: 0000000000000000 RSI: ffffffff8a2b3e80 RDI: ffffffff8a7a4c00
RBP: ffffc9000309f790 R08: ffffffff8e6b282f R09: 1ffffffff1cd6505
R10: dffffc0000000000 R11: fffffbfff1cd6506 R12: dffffc0000000000
R13: ffffffff8cfccc60 R14: ffff888148802d90 R15: dffffc0000000000
 down_read+0x20/0x2e0 kernel/locking/rwsem.c:1497
 kernfs_iop_permission+0x68/0x310 fs/kernfs/inode.c:284
 do_inode_permission fs/namei.c:459 [inline]
 inode_permission+0x239/0x480 fs/namei.c:526
 may_lookup fs/namei.c:1701 [inline]
 link_path_walk+0x2ef/0xde0 fs/namei.c:2253
 path_openat+0x28e/0x2fb0 fs/namei.c:3789
 do_filp_open+0x1df/0x400 fs/namei.c:3820
 do_sys_openat2+0x14b/0x500 fs/open.c:1255
 do_sys_open fs/open.c:1271 [inline]
 __do_sys_openat fs/open.c:1287 [inline]
 __se_sys_openat fs/open.c:1282 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1282
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f467bc18407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffe935fb440 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f467bb2a880 RCX: 00007f467bc18407
RDX: 0000000000080000 RSI: 00007ffe935fb5c0 RDI: ffffffffffffff9c
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00005622a03aa7f5
R13: 00005622a03aa7f5 R14: 0000000000000001 R15: 00005622a03c5140
 </TASK>
----------------
Code disassembly (best guess):
   0:	75 1f                	jne    0x21
   2:	c6 05 33 62 03 0d 01 	movb   $0x1,0xd036233(%rip)        # 0xd03623c
   9:	48 c7 c7 80 b2 2a 8a 	mov    $0xffffffff8a2ab280,%rdi
  10:	be 98 25 00 00       	mov    $0x2598,%esi
  15:	48 c7 c2 c0 b9 2a 8a 	mov    $0xffffffff8a2ab9c0,%rdx
  1c:	e8 40 58 63 08       	call   0x8635861
  21:	e8 9b 2d 6e 08       	call   0x86e2dc1
  26:	85 c0                	test   %eax,%eax
  28:	74 46                	je     0x70
* 2a:	48 c7 c7 60 f0 11 8d 	mov    $0xffffffff8d11f060,%rdi <-- trapping instruction
  31:	be ff ff ff ff       	mov    $0xffffffff,%esi
  36:	e8 c6 29 6e 08       	call   0x86e2a01
  3b:	85 c0                	test   %eax,%eax
  3d:	74 31                	je     0x70
  3f:	e8                   	.byte 0xe8