------------[ cut here ]------------ NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out WARNING: CPU: 1 PID: 7315 at net/sched/sch_generic.c:478 dev_watchdog+0x93c/0xb10 net/sched/sch_generic.c:477 Modules linked in: CPU: 1 PID: 7315 Comm: syz-executor.4 Not tainted 5.15.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:dev_watchdog+0x93c/0xb10 net/sched/sch_generic.c:477 Code: 05 8c 90 7b 05 01 48 8b 5c 24 28 48 89 df e8 3b c6 e2 ff 48 c7 c7 40 c3 7c 8b 48 89 de 48 89 c2 48 8b 4c 24 10 e8 e4 80 f6 f8 <0f> 0b e9 fe fc ff ff e8 88 d8 2a f9 0f 0b e9 83 fc ff ff 44 89 e1 RSP: 0018:ffffc90000dd0b10 EFLAGS: 00010246 RAX: cd958209bd08e100 RBX: ffff88801aefa000 RCX: ffff88805e4fd940 RDX: 0000000000000102 RSI: 0000000000000102 RDI: 0000000000000000 RBP: 00000000ffffde01 R08: ffffffff8166860c R09: fffff520001ba0a5 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801aefa448 R13: ffff88801aefa440 R14: ffff88801aefa540 R15: ffff88801aefa460 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8b76427000 CR3: 0000000063241000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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 __do_softirq+0x3b3/0x93a kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:PagePoisoned include/linux/page-flags.h:218 [inline] RIP: 0010:ClearPageReferenced include/linux/page-flags.h:345 [inline] RIP: 0010:mark_page_accessed+0xd88/0x1330 mm/swap.c:425 Code: 74 08 4c 89 f7 e8 38 d7 1d 00 49 8b 1e 89 de 83 e6 01 31 ff e8 e9 02 d4 ff f6 c3 01 0f 85 d9 01 00 00 e8 fb fe d3 ff 4c 89 fb <48> 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 02 d7 1d 00 RSP: 0018:ffffc900030a73c8 EFLAGS: 00000293 RAX: ffffffff81ac5dc5 RBX: ffffea00004d7240 RCX: ffff88805e4fd940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff81ac5db7 R09: fffffbfff1bc8c56 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b9b35510 R13: dffffc0000000000 R14: ffffea00004d7248 R15: ffffea00004d7240 zap_pte_range mm/memory.c:1370 [inline] zap_pmd_range mm/memory.c:1494 [inline] zap_pud_range mm/memory.c:1523 [inline] zap_p4d_range mm/memory.c:1544 [inline] unmap_page_range+0xe4f/0x2630 mm/memory.c:1565 unmap_vmas+0x1f8/0x390 mm/memory.c:1642 exit_mmap+0x3b6/0x670 mm/mmap.c:3186 __mmput+0x112/0x3b0 kernel/fork.c:1126 exit_mm+0x688/0x7f0 kernel/exit.c:548 do_exit+0x626/0x2480 kernel/exit.c:859 do_group_exit+0x144/0x310 kernel/exit.c:994 get_signal+0xc66/0x14e0 kernel/signal.c:2889 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:154 [inline] exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f8b762fcd69 Code: Unable to access opcode bytes at RIP 0x7f8b762fcd3f. RSP: 002b:00007f8b7486f178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f8b7642af88 RCX: 00007f8b762fcd69 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f8b7642af88 RBP: 00007f8b7642af80 R08: 00007f8b7486f6c0 R09: 00007f8b7486f6c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8b7642af8c R13: 000000000000000b R14: 00007ffc2c0b6700 R15: 00007ffc2c0b67e8 ---------------- Code disassembly (best guess): 0: 74 08 je 0xa 2: 4c 89 f7 mov %r14,%rdi 5: e8 38 d7 1d 00 call 0x1dd742 a: 49 8b 1e mov (%r14),%rbx d: 89 de mov %ebx,%esi f: 83 e6 01 and $0x1,%esi 12: 31 ff xor %edi,%edi 14: e8 e9 02 d4 ff call 0xffd40302 19: f6 c3 01 test $0x1,%bl 1c: 0f 85 d9 01 00 00 jne 0x1fb 22: e8 fb fe d3 ff call 0xffd3ff22 27: 4c 89 fb mov %r15,%rbx * 2a: 48 89 d8 mov %rbx,%rax <-- trapping instruction 2d: 48 c1 e8 03 shr $0x3,%rax 31: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) 36: 74 08 je 0x40 38: 48 89 df mov %rbx,%rdi 3b: e8 02 d7 1d 00 call 0x1dd742