------------[ cut here ]------------ NETDEV WATCHDOG: bnep0 (): transmit queue 0 timed out WARNING: CPU: 0 PID: 5057 at net/sched/sch_generic.c:478 dev_watchdog+0x93c/0xb10 net/sched/sch_generic.c:477 Modules linked in: CPU: 0 PID: 5057 Comm: syz.1.234 Not tainted 5.15.177-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:dev_watchdog+0x93c/0xb10 net/sched/sch_generic.c:477 Code: 05 28 04 81 05 01 48 8b 5c 24 28 48 89 df e8 1b b1 e2 ff 48 c7 c7 40 5e a1 8b 48 89 de 48 89 c2 48 8b 4c 24 10 e8 64 33 d6 f8 <0f> 0b e9 fe fc ff ff e8 b8 99 0a f9 0f 0b e9 83 fc ff ff 44 89 e1 RSP: 0018:ffffc90000007b10 EFLAGS: 00010246 RAX: ccdc9f8915027d00 RBX: ffff88807b80e000 RCX: ffff8880258dbb80 RDX: 0000000000000100 RSI: 0000000080000102 RDI: 0000000000000000 RBP: 00000000ffffba01 R08: ffffffff8166aa8c R09: fffff52000000ea5 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807b80e448 R13: ffff88807b80e440 R14: ffff88807b80e540 R15: ffff88807b80e460 FS: 00007f4d10f876c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c31d1e4 CR3: 0000000020842000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451 expire_timers kernel/time/timer.c:1496 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1767 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653 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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 42 90 81 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> e7 ae 0e f7 65 8b 05 f8 91 b9 75 85 c0 74 3f 48 c7 04 24 0e 36 RSP: 0018:ffffc9000301f580 EFLAGS: 00000206 RAX: ccdc9f8915027d00 RBX: 1ffff92000603eb4 RCX: ffffffff81633dd8 RDX: dffffc0000000000 RSI: ffffffff8aab2b80 RDI: 0000000000000001 RBP: ffffc9000301f610 R08: dffffc0000000000 R09: fffffbfff2131837 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff92000603eb0 R14: ffffc9000301f5a0 R15: 0000000000000246 spin_unlock_irqrestore include/linux/spinlock.h:418 [inline] __skb_try_recv_datagram+0x1c7/0x6a0 net/core/datagram.c:267 __unix_dgram_recvmsg+0x3c1/0x1260 net/unix/af_unix.c:2304 ____sys_recvmsg+0x286/0x530 ___sys_recvmsg+0x1ec/0x690 net/socket.c:2697 do_recvmmsg+0x36f/0x8f0 net/socket.c:2791 __sys_recvmmsg net/socket.c:2870 [inline] __do_sys_recvmmsg net/socket.c:2893 [inline] __se_sys_recvmmsg net/socket.c:2886 [inline] __x64_sys_recvmmsg+0x195/0x240 net/socket.c:2886 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f4d1313ed29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4d10f87038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f4d13358080 RCX: 00007f4d1313ed29 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000006 RBP: 00007f4d131c02a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4d13358080 R15: 00007ffc29658b28 </TASK> ---------------- Code disassembly (best guess): 0: 9c pushf 1: 8f 44 24 20 pop 0x20(%rsp) 5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1) a: 74 08 je 0x14 c: 4c 89 f7 mov %r14,%rdi f: e8 42 90 81 f7 call 0xf7819056 14: f6 44 24 21 02 testb $0x2,0x21(%rsp) 19: 75 4e jne 0x69 1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d 22: 74 01 je 0x25 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 e7 ae 0e f7 call 0xf70eaf16 <-- trapping instruction 2f: 65 8b 05 f8 91 b9 75 mov %gs:0x75b991f8(%rip),%eax # 0x75b9922e 36: 85 c0 test %eax,%eax 38: 74 3f je 0x79 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: 04 24 add $0x24,%al 3e: 0e (bad) 3f: 36 ss