------------[ cut here ]------------ NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out WARNING: CPU: 0 PID: 5155 at net/sched/sch_generic.c:478 dev_watchdog+0x93c/0xb10 net/sched/sch_generic.c:477 Modules linked in: CPU: 0 PID: 5155 Comm: syz-executor.4 Not tainted 5.15.160-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 5d 7f 7b 05 01 48 8b 5c 24 28 48 89 df e8 fb ba e2 ff 48 c7 c7 00 c9 7c 8b 48 89 de 48 89 c2 48 8b 4c 24 10 e8 74 6c f6 f8 <0f> 0b e9 fe fc ff ff e8 18 c4 2a f9 0f 0b e9 83 fc ff ff 44 89 e1 RSP: 0018:ffffc90000007b10 EFLAGS: 00010246 RAX: b9475df7ae16bd00 RBX: ffff88807ce7e000 RCX: ffff88801aef5940 RDX: 0000000000000102 RSI: 0000000000000102 RDI: 0000000000000000 RBP: 00000000ffffaf01 R08: ffffffff8166860c R09: ffffed1017344f24 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807ce7e448 R13: ffff88807ce7e440 R14: ffff88807ce7e540 R15: ffff88807ce7e460 FS: 00005555565d0480(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f727000 CR3: 000000005c94d000 CR4: 00000000003506f0 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:__orc_find arch/x86/kernel/unwind_orc.c:50 [inline] RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:178 [inline] RIP: 0010:unwind_next_frame+0x507/0x1fa0 arch/x86/kernel/unwind_orc.c:448 Code: 03 00 00 a9 00 04 00 00 0f 84 a7 11 00 00 e9 bc 11 00 00 49 89 fc 49 89 fe 48 89 e8 4c 29 f0 48 89 c1 48 c1 f9 02 48 c1 e8 3f <48> 01 c8 48 83 e0 fe 49 8d 1c 46 48 89 d8 48 c1 e8 03 0f b6 04 10 RSP: 0018:ffffc900030f71c8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffffff8eee4fc8 RCX: 0000000000000002 RDX: dffffc0000000000 RSI: ffffffff8e58cf92 RDI: ffffffff8df1c7c4 RBP: ffffffff8df1c7cc R08: 0000000000000003 R09: ffffc900030f7330 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8df1c7c4 R13: ffffffff812fdada R14: ffffffff8df1c7c4 R15: ffffc900030f72e0 __unwind_start+0x59d/0x720 arch/x86/kernel/unwind_orc.c:704 unwind_start arch/x86/include/asm/unwind.h:60 [inline] arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 save_stack+0xf6/0x1e0 mm/page_owner.c:119 __set_page_owner+0x37/0x300 mm/page_owner.c:181 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5423 vm_area_alloc_pages mm/vmalloc.c:2868 [inline] __vmalloc_area_node mm/vmalloc.c:2924 [inline] __vmalloc_node_range+0x5ab/0x8c0 mm/vmalloc.c:3029 vmalloc_user+0x70/0x80 mm/vmalloc.c:3165 kcov_mmap+0x28/0x120 kernel/kcov.c:465 call_mmap include/linux/fs.h:2177 [inline] mmap_region+0x10e7/0x1670 mm/mmap.c:1791 do_mmap+0x78d/0xe00 mm/mmap.c:1575 vm_mmap_pgoff+0x1ca/0x2d0 mm/util.c:551 ksys_mmap_pgoff+0x559/0x780 mm/mmap.c:1624 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f28c9f1bf23 Code: f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 89 ca 41 f7 c1 ff 0f 00 00 75 14 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 25 c3 0f 1f 40 00 48 c7 c0 b0 ff ff ff 64 c7 RSP: 002b:00007fffad16da98 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f28ca0530e8 RCX: 00007f28c9f1bf23 RDX: 0000000000000003 RSI: 0000000000200000 RDI: 00007f28c969c000 RBP: 00007f28c969b000 R08: 00000000000000d9 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 00007fffad16e188 R13: 0000000000000003 R14: 00007f28ca0530e8 R15: 0000000000000001 ---------------- Code disassembly (best guess): 0: 03 00 add (%rax),%eax 2: 00 a9 00 04 00 00 add %ch,0x400(%rcx) 8: 0f 84 a7 11 00 00 je 0x11b5 e: e9 bc 11 00 00 jmp 0x11cf 13: 49 89 fc mov %rdi,%r12 16: 49 89 fe mov %rdi,%r14 19: 48 89 e8 mov %rbp,%rax 1c: 4c 29 f0 sub %r14,%rax 1f: 48 89 c1 mov %rax,%rcx 22: 48 c1 f9 02 sar $0x2,%rcx 26: 48 c1 e8 3f shr $0x3f,%rax * 2a: 48 01 c8 add %rcx,%rax <-- trapping instruction 2d: 48 83 e0 fe and $0xfffffffffffffffe,%rax 31: 49 8d 1c 46 lea (%r14,%rax,2),%rbx 35: 48 89 d8 mov %rbx,%rax 38: 48 c1 e8 03 shr $0x3,%rax 3c: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax