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NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out
WARNING: CPU: 1 PID: 8805 at net/sched/sch_generic.c:478 dev_watchdog+0x8d3/0xab0 net/sched/sch_generic.c:477
Modules linked in:
CPU: 1 PID: 8805 Comm: syz-executor Not tainted 5.15.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:dev_watchdog+0x8d3/0xab0 net/sched/sch_generic.c:477
Code: f9 c6 05 b8 7b 61 05 01 4c 8b 74 24 28 4c 89 f7 e8 22 43 e4 ff 48 c7 c7 80 99 01 8b 4c 89 f6 48 89 c2 44 89 e1 e8 7d 59 aa 01 <0f> 0b e9 31 fe ff ff e8 91 64 83 f9 0f 0b e9 13 fe ff ff 44 89 e1
RSP: 0018:ffffc90000dd0b08 EFLAGS: 00010246
RAX: 59ae0b1f7641f500 RBX: dffffc0000000000 RCX: ffff88802ad91dc0
RDX: 0000000000000100 RSI: 0000000080000102 RDI: 0000000000000000
RBP: ffff8880787ea068 R08: dffffc0000000000 R09: ffffed1017224f24
R10: ffffed1017224f24 R11: 1ffff11017224f23 R12: 0000000000000000
R13: ffff888075b0a540 R14: ffff888075b0a000 R15: dffffc0000000000
FS:  000055557c559500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5d12502d60 CR3: 000000007e799000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x16c/0x530 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x525/0x7c0 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 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:console_unlock+0xd90/0x1200 kernel/printk/printk.c:2749
Code: 00 48 83 7c 24 28 00 75 19 e8 dc 9f 18 00 eb 18 e8 d5 9f 18 00 e8 20 5a 4a 08 48 83 7c 24 28 00 74 e7 e8 c3 9f 18 00 fb 31 ff <89> de e8 19 a3 18 00 85 db 0f 94 c0 22 44 24 17 3c 01 75 1f e8 a7
RSP: 0018:ffffc9000c7de780 EFLAGS: 00000246
RAX: ffffffff815f234d RBX: 0000000000000000 RCX: ffff88802ad91dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000c7de9f0 R08: dffffc0000000000 R09: fffffbfff1ff7419
R10: fffffbfff1ff7419 R11: 1ffffffff1ff7418 R12: 1ffffffff194c6d1
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffffffff194c6ca
 vprintk_emit+0xc0/0x150 kernel/printk/printk.c:2274
 _printk+0xcc/0x110 kernel/printk/printk.c:2299
 __dev_set_promiscuity+0x1d3/0x5b0 net/core/dev.c:8644
 dev_set_promiscuity+0x4c/0xe0 net/core/dev.c:8683
 br_port_set_promisc net/bridge/br_if.c:99 [inline]
 br_manage_promisc+0x152/0x590 net/bridge/br_if.c:148
 br_add_if+0x74e/0x11d0 net/bridge/br_if.c:650
 do_set_master net/core/rtnetlink.c:2575 [inline]
 do_setlink+0xd84/0x3980 net/core/rtnetlink.c:2786
 __rtnl_newlink net/core/rtnetlink.c:3450 [inline]
 rtnl_newlink+0x1419/0x17d0 net/core/rtnetlink.c:3572
 rtnetlink_rcv_msg+0x9b9/0xe60 net/core/rtnetlink.c:5650
 netlink_rcv_skb+0x1e0/0x430 net/netlink/af_netlink.c:2489
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x77c/0x920 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0x8ab/0xbc0 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 __sys_sendto+0x423/0x580 net/socket.c:2063
 __do_sys_sendto net/socket.c:2075 [inline]
 __se_sys_sendto net/socket.c:2071 [inline]
 __x64_sys_sendto+0xda/0xf0 net/socket.c:2071
 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: 0033:0x7f5d117ab7bc
Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b
RSP: 002b:00007ffce5ecfa50 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f5d124ff620 RCX: 00007f5d117ab7bc
RDX: 0000000000000028 RSI: 00007f5d124ff670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffce5ecfaa4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f5d124ff670 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 48 83             	add    %cl,-0x7d(%rax)
   3:	7c 24                	jl     0x29
   5:	28 00                	sub    %al,(%rax)
   7:	75 19                	jne    0x22
   9:	e8 dc 9f 18 00       	call   0x189fea
   e:	eb 18                	jmp    0x28
  10:	e8 d5 9f 18 00       	call   0x189fea
  15:	e8 20 5a 4a 08       	call   0x84a5a3a
  1a:	48 83 7c 24 28 00    	cmpq   $0x0,0x28(%rsp)
  20:	74 e7                	je     0x9
  22:	e8 c3 9f 18 00       	call   0x189fea
  27:	fb                   	sti
  28:	31 ff                	xor    %edi,%edi
* 2a:	89 de                	mov    %ebx,%esi <-- trapping instruction
  2c:	e8 19 a3 18 00       	call   0x18a34a
  31:	85 db                	test   %ebx,%ebx
  33:	0f 94 c0             	sete   %al
  36:	22 44 24 17          	and    0x17(%rsp),%al
  3a:	3c 01                	cmp    $0x1,%al
  3c:	75 1f                	jne    0x5d
  3e:	e8                   	.byte 0xe8
  3f:	a7                   	cmpsl  %es:(%rdi),%ds:(%rsi)