------------[ cut here ]------------ NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out 36470 ms WARNING: CPU: 0 PID: 22111 at net/sched/sch_generic.c:525 dev_watchdog+0x8cd/0x8f0 net/sched/sch_generic.c:525 Modules linked in: CPU: 0 PID: 22111 Comm: syz-executor.5 Not tainted 6.7.0-rc7-syzkaller-00049-g453f5db0619e #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: 2c 77 06 01 90 48 8b 5c 24 10 48 89 df e8 8b 31 e6 ff 45 89 e8 89 e9 48 89 de 48 89 c2 48 c7 c7 a0 7f ec 8b e8 34 84 c1 f8 90 <0f> 0b 90 90 e9 23 fd ff ff e8 f5 42 fb f8 90 0f 0b 90 e9 bc fc ff RSP: 0018:ffffc90000007be0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888021a76000 RCX: ffffffff814db519 RDX: ffff88802ae5d940 RSI: ffffffff814db526 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 00000000000d0230 R12: ffff888079393000 R13: 0000000000008e76 R14: ffff888021a76548 R15: 000000010001e601 FS: 00007f2460d256c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c02b459000 CR3: 0000000028576000 CR4: 0000000000350ef0 Call Trace: call_timer_fn+0x193/0x590 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x764/0xb20 kernel/time/timer.c:2022 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035 __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:get_task_policy mm/mempolicy.c:178 [inline] RIP: 0010:get_task_policy+0xbb/0x110 mm/mempolicy.c:166 Code: 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 04 84 d2 75 3f 48 c1 e3 05 31 ff 48 81 c3 c0 35 82 92 0f b7 6b 04 <89> ee e8 4e 18 ad ff 66 85 ed 75 12 e8 f4 1c ad ff 48 c7 c3 60 a8 RSP: 0018:ffffc90014e6f978 EFLAGS: 00000286 RAX: 0000000000000005 RBX: ffffffff928235c0 RCX: ffffc90004c59000 RDX: 0000000000000000 RSI: ffffffff81da54f9 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000005 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000002 R12: 0000000000100cca R13: 00000000000017cb R14: 0000000000000000 R15: ffff88807ebd10c8 shmem_get_pgoff_policy mm/shmem.c:2363 [inline] shmem_get_pgoff_policy mm/shmem.c:2354 [inline] shmem_alloc_folio+0xf2/0x140 mm/shmem.c:1629 shmem_alloc_and_add_folio+0x147/0x7b0 mm/shmem.c:1670 shmem_get_folio_gfp+0x623/0x1360 mm/shmem.c:2054 shmem_get_folio mm/shmem.c:2136 [inline] shmem_write_begin+0x15a/0x360 mm/shmem.c:2719 generic_perform_write+0x278/0x600 mm/filemap.c:3927 shmem_file_write_iter+0x110/0x140 mm/shmem.c:2895 call_write_iter include/linux/fs.h:2020 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x64f/0xdf0 fs/read_write.c:584 ksys_write+0x12f/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f246007ba2f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 b9 80 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 0c 81 02 00 48 RSP: 002b:00007f2460d24e70 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000001000000 RCX: 00007f246007ba2f RDX: 0000000001000000 RSI: 00007f24567ff000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000005597 R10: 0000000000000002 R11: 0000000000000293 R12: 0000000000000003 R13: 00007f2460d24f3c R14: 00007f2460d24f40 R15: 00007f24567ff000 ---------------- Code disassembly (best guess): 0: 48 c1 ea 03 shr $0x3,%rdx 4: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx 8: 48 89 f8 mov %rdi,%rax b: 83 e0 07 and $0x7,%eax e: 83 c0 01 add $0x1,%eax 11: 38 d0 cmp %dl,%al 13: 7c 04 jl 0x19 15: 84 d2 test %dl,%dl 17: 75 3f jne 0x58 19: 48 c1 e3 05 shl $0x5,%rbx 1d: 31 ff xor %edi,%edi 1f: 48 81 c3 c0 35 82 92 add $0xffffffff928235c0,%rbx 26: 0f b7 6b 04 movzwl 0x4(%rbx),%ebp * 2a: 89 ee mov %ebp,%esi <-- trapping instruction 2c: e8 4e 18 ad ff call 0xffad187f 31: 66 85 ed test %bp,%bp 34: 75 12 jne 0x48 36: e8 f4 1c ad ff call 0xffad1d2f 3b: 48 rex.W 3c: c7 .byte 0xc7 3d: c3 ret 3e: 60 (bad) 3f: a8 .byte 0xa8