------------[ cut here ]------------ NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out WARNING: CPU: 1 PID: 33 at net/sched/sch_generic.c:526 dev_watchdog+0x6c0/0x700 net/sched/sch_generic.c:525 Modules linked in: CPU: 1 PID: 33 Comm: kworker/u4:2 Not tainted 6.1.81-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet RIP: 0010:dev_watchdog+0x6c0/0x700 net/sched/sch_generic.c:525 Code: ed f8 c6 05 2b c1 c2 05 01 48 8b 1c 24 48 89 df e8 15 63 e5 ff 48 c7 c7 80 c7 e3 8b 48 89 de 48 89 c2 44 89 f1 e8 90 cf b5 f8 <0f> 0b e9 8b fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c1 fb ff RSP: 0018:ffffc900001e0b00 EFLAGS: 00010246 RAX: 7c57d21daca3e200 RBX: ffff88803c0ba000 RCX: ffff888014ec1dc0 RDX: 0000000000000101 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000001000105c1 R08: ffffffff81527e8e R09: fffff5200003c0c1 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11007817489 R13: 000000010000fdd1 R14: 0000000000000000 R15: 0000000000000110 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fac3e5e8ba8 CR3: 00000000829d8000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1790 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:lock_acquire+0x2b/0x5a0 kernel/locking/lockdep.c:5630 Code: 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 20 01 00 00 4c 89 4c 24 28 4c 89 44 24 38 48 89 4c 24 30 89 54 24 1c <41> 89 f6 48 89 7c 24 20 65 48 8b 04 25 28 00 00 00 48 89 84 24 00 RSP: 0018:ffffc90000aa7900 EFLAGS: 00000286 RAX: ffffffff8a55974a RBX: 0000000000000263 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8d12a840 RBP: ffffc90000aa7a48 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880735f1000 R13: ffff88801f0c3480 R14: dffffc0000000000 R15: ffff88807aced318 rcu_lock_acquire include/linux/rcupdate.h:319 [inline] rcu_read_lock include/linux/rcupdate.h:760 [inline] batadv_iv_ogm_slide_own_bcast_window net/batman-adv/bat_iv_ogm.c:755 [inline] batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:826 [inline] batadv_iv_ogm_schedule+0x43b/0x1090 net/batman-adv/bat_iv_ogm.c:869 batadv_iv_send_outstanding_bat_ogm_packet+0x6fa/0x800 net/batman-adv/bat_iv_ogm.c:1713 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:307 ---------------- Code disassembly (best guess): 0: 48 89 e5 mov %rsp,%rbp 3: 41 57 push %r15 5: 41 56 push %r14 7: 41 55 push %r13 9: 41 54 push %r12 b: 53 push %rbx c: 48 83 e4 e0 and $0xffffffffffffffe0,%rsp 10: 48 81 ec 20 01 00 00 sub $0x120,%rsp 17: 4c 89 4c 24 28 mov %r9,0x28(%rsp) 1c: 4c 89 44 24 38 mov %r8,0x38(%rsp) 21: 48 89 4c 24 30 mov %rcx,0x30(%rsp) 26: 89 54 24 1c mov %edx,0x1c(%rsp) * 2a: 41 89 f6 mov %esi,%r14d <-- trapping instruction 2d: 48 89 7c 24 20 mov %rdi,0x20(%rsp) 32: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax 39: 00 00 3b: 48 rex.W 3c: 89 .byte 0x89 3d: 84 24 00 test %ah,(%rax,%rax,1)