------------[ cut here ]------------ NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out 26190 ms WARNING: CPU: 0 PID: 5103 at net/sched/sch_generic.c:525 dev_watchdog+0x8cd/0x8f0 net/sched/sch_generic.c:525 Modules linked in: CPU: 0 PID: 5103 Comm: syz-executor.3 Not tainted 6.7.0-syzkaller-01193-g6c1dd1fe5d8a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:dev_watchdog+0x8cd/0x8f0 net/sched/sch_generic.c:525 Code: 57 75 06 01 90 48 8b 5c 24 10 48 89 df e8 0b 32 e6 ff 45 89 e8 89 e9 48 89 de 48 89 c2 48 c7 c7 60 81 ec 8b e8 74 5b bf f8 90 <0f> 0b 90 90 e9 23 fd ff ff e8 25 66 f9 f8 90 0f 0b 90 e9 bc fc ff RSP: 0018:ffffc90000007be0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888037eec000 RCX: ffffffff814cfb99 RDX: ffff88807d14bb80 RSI: ffffffff814cfba6 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: fffffffffffc8ed8 R12: ffff88801634ec00 R13: 000000000000664e R14: ffff888037eec548 R15: 000000010001d005 FS: 0000555555fe6480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555ff7978 CR3: 0000000032aa7000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x193/0x590 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x759/0xaa0 kernel/time/timer.c:2038 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2051 __do_softirq+0x21a/0x8de kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:__sanitizer_cov_trace_pc+0x34/0x60 kernel/kcov.c:207 Code: c2 03 00 65 8b 05 74 bd 7c 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 35 8b 82 fc 15 00 00 85 c0 74 2b 8b 82 d8 15 00 00 <83> f8 02 75 20 48 8b 8a e0 15 00 00 8b 92 dc 15 00 00 48 8b 01 48 RSP: 0018:ffffc9000385f9e0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc9000385fa68 RCX: ffffffff813a466b RDX: ffff88807d14bb80 RSI: ffffffff813a4679 RDI: 0000000000000004 RBP: 0000000000000001 R08: 0000000000000004 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000001 unwind_next_frame+0x1189/0x2390 arch/x86/kernel/unwind_orc.c:665 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:634 poison_slab_object mm/kasan/common.c:241 [inline] __kasan_slab_free+0x121/0x1b0 mm/kasan/common.c:257 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2121 [inline] slab_free mm/slub.c:4299 [inline] kmem_cache_free+0x129/0x350 mm/slub.c:4363 security_file_free+0xa8/0xd0 security/security.c:2706 file_free fs/file_table.c:66 [inline] __fput+0x3e7/0xb70 fs/file_table.c:395 __fput_sync+0x47/0x50 fs/file_table.c:467 __do_sys_close fs/open.c:1554 [inline] __se_sys_close fs/open.c:1539 [inline] __x64_sys_close+0x87/0xf0 fs/open.c:1539 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fae36e7c5e7 Code: 44 00 00 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb bc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffe0affee38 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007fae36e7c5e7 RDX: 0000000000010690 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007fae36ec83b9 R08: 0000555555fef99b R09: 0000000000000000 R10: 0000000000001000 R11: 0000000000000206 R12: 00007ffe0affffe0 R13: 00007fae36ec83b9 R14: 0000000000171ede R15: 0000000000000010 ---------------- Code disassembly (best guess): 0: c2 03 00 ret $0x3 3: 65 8b 05 74 bd 7c 7e mov %gs:0x7e7cbd74(%rip),%eax # 0x7e7cbd7e a: a9 00 01 ff 00 test $0xff0100,%eax f: 48 8b 34 24 mov (%rsp),%rsi 13: 74 0f je 0x24 15: f6 c4 01 test $0x1,%ah 18: 74 35 je 0x4f 1a: 8b 82 fc 15 00 00 mov 0x15fc(%rdx),%eax 20: 85 c0 test %eax,%eax 22: 74 2b je 0x4f 24: 8b 82 d8 15 00 00 mov 0x15d8(%rdx),%eax * 2a: 83 f8 02 cmp $0x2,%eax <-- trapping instruction 2d: 75 20 jne 0x4f 2f: 48 8b 8a e0 15 00 00 mov 0x15e0(%rdx),%rcx 36: 8b 92 dc 15 00 00 mov 0x15dc(%rdx),%edx 3c: 48 8b 01 mov (%rcx),%rax 3f: 48 rex.W