------------[ cut here ]------------ NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out WARNING: CPU: 1 PID: 11 at net/sched/sch_generic.c:526 dev_watchdog+0x6c0/0x700 net/sched/sch_generic.c:525 Modules linked in: CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 6.1.83-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Workqueue: bat_events batadv_nc_worker RIP: 0010:dev_watchdog+0x6c0/0x700 net/sched/sch_generic.c:525 Code: ed f8 c6 05 3d 55 c2 05 01 48 8b 1c 24 48 89 df e8 25 62 e5 ff 48 c7 c7 40 d6 e3 8b 48 89 de 48 89 c2 44 89 f1 e8 30 5f 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: 171210062704be00 RBX: ffff888058bca000 RCX: ffff88813fea3b80 RDX: 0000000000000101 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000100008d40 R08: ffffffff81527eae R09: fffff5200003c0c1 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100b179489 R13: 00000001000085d2 R14: 0000000000000000 R15: 0000000000000110 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe82b15e98 CR3: 000000005f48d000 CR4: 00000000003506e0 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:__kasan_check_read+0x6/0x10 mm/kasan/shadow.c:31 Code: 41 5e 41 5f 5d c3 48 c7 c7 55 91 90 8c eb 0a 48 c7 c7 8d 91 90 8c 4c 89 fe e8 bf e8 a5 08 31 db eb d7 cc cc 89 f6 48 8b 0c 24 <31> d2 e9 d3 ec ff ff 0f 1f 00 89 f6 48 8b 0c 24 ba 01 00 00 00 e9 RSP: 0018:ffffc90000107ab8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff816a77f7 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e7364e8 RBP: ffffc90000107be8 R08: ffffffff8a5ae52a R09: fffffbfff2092e45 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000020f64 R13: ffffffff8a5ae3f7 R14: ffff88807edf9700 R15: dffffc0000000000 instrument_atomic_read include/linux/instrumented.h:72 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] cpumask_test_cpu include/linux/cpumask.h:444 [inline] cpu_online include/linux/cpumask.h:1030 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0xc7/0xa20 kernel/locking/lockdep.c:5673 rcu_lock_release include/linux/rcupdate.h:355 [inline] rcu_read_unlock include/linux/rcupdate.h:824 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline] batadv_nc_worker+0x28c/0x610 net/batman-adv/network-coding.c:719 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: 41 5e pop %r14 2: 41 5f pop %r15 4: 5d pop %rbp 5: c3 ret 6: 48 c7 c7 55 91 90 8c mov $0xffffffff8c909155,%rdi d: eb 0a jmp 0x19 f: 48 c7 c7 8d 91 90 8c mov $0xffffffff8c90918d,%rdi 16: 4c 89 fe mov %r15,%rsi 19: e8 bf e8 a5 08 call 0x8a5e8dd 1e: 31 db xor %ebx,%ebx 20: eb d7 jmp 0xfffffff9 22: cc int3 23: cc int3 24: 89 f6 mov %esi,%esi 26: 48 8b 0c 24 mov (%rsp),%rcx * 2a: 31 d2 xor %edx,%edx <-- trapping instruction 2c: e9 d3 ec ff ff jmp 0xffffed04 31: 0f 1f 00 nopl (%rax) 34: 89 f6 mov %esi,%esi 36: 48 8b 0c 24 mov (%rsp),%rcx 3a: ba 01 00 00 00 mov $0x1,%edx 3f: e9 .byte 0xe9