watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.0:7882] Modules linked in: irq event stamp: 5535335 hardirqs last enabled at (5535334): [] trace_hardirqs_on_thunk+0x1a/0x1c arch/x86/entry/thunk_64.S:41 hardirqs last disabled at (5535335): [] trace_hardirqs_off_thunk+0x1a/0x1c arch/x86/entry/thunk_64.S:42 softirqs last enabled at (186820): [] __do_softirq+0x6cd/0x98c kernel/softirq.c:319 softirqs last disabled at (186871): [] invoke_softirq kernel/softirq.c:373 [inline] softirqs last disabled at (186871): [] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 CPU: 0 PID: 7882 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:br_allowed_ingress+0x0/0x1760 net/bridge/br_vlan.c:538 Code: 8b 85 30 ff ff ff e9 67 fd ff ff e8 ba 7c dd fa e9 2e fd ff ff e8 b0 7c dd fa e9 cf fd ff ff 90 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 41 57 48 8d 85 38 ff ff ff 41 56 49 89 d6 41 55 4c 8d RSP: 0018:ffff88802d2093d0 EFLAGS: 00010206 ORIG_RAX: ffffffffffffff13 RAX: ffff888072548040 RBX: ffff888020439000 RCX: ffff88802d209440 RDX: ffff88802b686e00 RSI: ffff888020439000 RDI: ffff8880250e4b80 RBP: ffff88802d2094d8 R08: ffff888072548040 R09: ffffed1005a47045 R10: ffffed1005a47044 R11: ffff88802d238223 R12: ffff88802b686e00 R13: ffff8880250e4000 R14: ffff88802b686eb6 R15: ffff88802d2094b0 FS: 00007f513ad85700(0000) GS:ffff88802d200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000006ff040 CR3: 0000000072ac4000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __netdev_start_xmit include/linux/netdevice.h:4442 [inline] netdev_start_xmit include/linux/netdevice.h:4456 [inline] xmit_one net/core/dev.c:3420 [inline] dev_hard_start_xmit+0x1a3/0x9b0 net/core/dev.c:3436 __dev_queue_xmit+0x2b05/0x35c0 net/core/dev.c:4013 dev_queue_xmit+0x18/0x20 net/core/dev.c:4046 neigh_resolve_output net/core/neighbour.c:1490 [inline] neigh_resolve_output+0x5c4/0x990 net/core/neighbour.c:1470 neigh_output include/net/neighbour.h:511 [inline] ip6_finish_output2+0x109a/0x25c0 net/ipv6/ip6_output.c:116 __ip6_finish_output+0x444/0xaa0 net/ipv6/ip6_output.c:142 ip6_finish_output+0x38/0x1f0 net/ipv6/ip6_output.c:152 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x25e/0x880 net/ipv6/ip6_output.c:175 dst_output include/net/dst.h:436 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ndisc_send_skb+0xf1f/0x1490 net/ipv6/ndisc.c:505 ndisc_send_rs+0x134/0x720 net/ipv6/ndisc.c:699 addrconf_rs_timer+0x30f/0x6e0 net/ipv6/addrconf.c:3879 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x4f/0x80 kernel/locking/spinlock.c:199 Code: c0 68 34 53 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d 12 2a 99 01 00 74 20 fb 66 0f 1f 44 00 00 01 00 00 00 e8 e7 6b 96 f9 65 8b 05 18 14 48 78 85 c0 74 06 41 RSP: 0018:ffff8880725578d8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff12a668d RBX: ffff888072548040 RCX: 0000000000000006 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8880725488d4 RBP: ffff8880725578e0 R08: 1ffffffff15d29b8 R09: fffffbfff15d29b9 R10: fffffbfff15d29b8 R11: ffffffff8ae94dc7 R12: ffff88802d237380 R13: ffff88802ba78f40 R14: ffff88801b5a7140 R15: 0000000000000402 finish_lock_switch kernel/sched/core.c:3124 [inline] finish_task_switch+0x147/0x750 kernel/sched/core.c:3224 context_switch kernel/sched/core.c:3388 [inline] __schedule+0x8e9/0x1f30 kernel/sched/core.c:4081 preempt_schedule_common+0x4f/0xe0 kernel/sched/core.c:4236 preempt_schedule+0x4b/0x60 kernel/sched/core.c:4261 ___preempt_schedule+0x16/0x18 arch/x86/entry/thunk_64.S:50 smp_call_function_single+0x410/0x480 kernel/smp.c:313 task_function_call+0xe9/0x180 kernel/events/core.c:114 perf_install_in_context+0x308/0x5a0 kernel/events/core.c:2746 __do_sys_perf_event_open+0x1cbc/0x2c70 kernel/events/core.c:11543 __se_sys_perf_event_open kernel/events/core.c:11151 [inline] __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:11151 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a759 Code: bd b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f513ad84c88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 000000000045a759 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 000000002001d000 RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f513ad856d4 R13: 00000000004aec2b R14: 00000000006f1ca8 R15: 00000000ffffffff Sending NMI from CPU 0 to CPUs 1-3: NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60 NMI backtrace for cpu 2 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.025 msecs NMI backtrace for cpu 3 CPU: 3 PID: 7883 Comm: syz-executor.1 Not tainted 5.4.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:hrtimer_update_base kernel/time/hrtimer.c:603 [inline] RIP: 0010:hrtimer_interrupt+0x21f/0x770 kernel/time/hrtimer.c:1620 Code: 05 00 00 49 8d 86 58 04 00 00 49 8b 9e 58 02 00 00 48 89 c2 48 89 45 80 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 <0f> 85 fa 04 00 00 49 8d 46 68 49 89 9e 58 04 00 00 45 31 ff 48 bb RSP: 0018:ffff88802d508f38 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: 15dbc0abff06a752 RCX: ffffffff8165d58d RDX: 1ffff11005aa5303 RSI: ffffffff8165d59e RDI: 000000000000afae RBP: ffff88802d508fd0 R08: ffff88807254c040 R09: ffff88807254c8d0 R10: fffffbfff146dba0 R11: ffffffff8a36dd07 R12: ffff88802d5227c0 R13: 0000000000000082 R14: ffff88802d5293c0 R15: 0000000000000000 FS: 00007ff60507a700(0000) GS:ffff88802d500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 0000000072a9f000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline] smp_apic_timer_interrupt+0x160/0x610 arch/x86/kernel/apic/apic.c:1135 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:update_stack_state+0x46e/0x5f0 arch/x86/kernel/unwind_frame.c:248 Code: 45 48 00 00 00 00 e9 16 ff ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 e1 48 c1 e9 03 80 3c 01 00 0f 85 12 01 00 00 4d 8b 24 24 b0 fe ff ff 49 8d 7d 38 48 b8 00 00 00 00 00 fc ff df 48 89 f9 RSP: 0018:ffff88802d5090d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff88802d509d00 RCX: 1ffff11005aa13a1 RDX: 0000000000000010 RSI: 1ffff11005aa1200 RDI: ffff88802d5092a8 RBP: ffff88802d509198 R08: ffff88807254c040 R09: ffff88802d5092d8 R10: ffff88802d5092a8 R11: ffff88802d5092b8 R12: ffffffff8164922c R13: ffff88802d509280 R14: 1ffff11005aa1222 R15: ffff88802d5092c0 unwind_next_frame.part.0+0x1a9/0xa20 arch/x86/kernel/unwind_frame.c:311 unwind_next_frame+0x3b/0x50 arch/x86/kernel/unwind_frame.c:265 arch_stack_walk+0x81/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xac/0xe0 kernel/stacktrace.c:123 save_stack+0x23/0x90 mm/kasan/common.c:69 set_track mm/kasan/common.c:77 [inline] __kasan_kmalloc mm/kasan/common.c:510 [inline] __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:483 kasan_kmalloc+0x9/0x10 mm/kasan/common.c:524 __do_kmalloc mm/slab.c:3655 [inline] __kmalloc+0x163/0x770 mm/slab.c:3664 kmalloc include/linux/slab.h:561 [inline] kzalloc include/linux/slab.h:690 [inline] neigh_alloc net/core/neighbour.c:402 [inline] ___neigh_create+0x1312/0x2560 net/core/neighbour.c:580 __neigh_create+0x2f/0x40 net/core/neighbour.c:674 ip6_finish_output2+0x94f/0x25c0 net/ipv6/ip6_output.c:113 __ip6_finish_output+0x444/0xaa0 net/ipv6/ip6_output.c:142 ip6_finish_output+0x38/0x1f0 net/ipv6/ip6_output.c:152 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x25e/0x880 net/ipv6/ip6_output.c:175 dst_output include/net/dst.h:436 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ndisc_send_skb+0xf1f/0x1490 net/ipv6/ndisc.c:505 ndisc_send_rs+0x134/0x720 net/ipv6/ndisc.c:699 addrconf_rs_timer+0x30f/0x6e0 net/ipv6/addrconf.c:3879 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x4f/0x80 kernel/locking/spinlock.c:199 Code: c0 68 34 53 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d 12 2a 99 01 00 74 20 fb 66 0f 1f 44 00 00 01 00 00 00 e8 e7 6b 96 f9 65 8b 05 18 14 48 78 85 c0 74 06 41 RSP: 0018:ffff88807255fa40 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff12a668d RBX: ffff88807254c040 RCX: 0000000000000006 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff88807254c8d4 RBP: ffff88807255fa48 R08: 1ffffffff15d29b8 R09: fffffbfff15d29b9 R10: fffffbfff15d29b8 R11: ffffffff8ae94dc7 R12: ffff88802d537380 R13: ffff88802c4d0400 R14: ffff88801b5a7140 R15: 0000000000000000 finish_lock_switch kernel/sched/core.c:3124 [inline] finish_task_switch+0x147/0x750 kernel/sched/core.c:3224 context_switch kernel/sched/core.c:3388 [inline] __schedule+0x8e9/0x1f30 kernel/sched/core.c:4081 preempt_schedule_irq+0xb5/0x160 kernel/sched/core.c:4338 retint_kernel+0x1b/0x2b RIP: 0010:perf_install_in_context+0x308/0x5a0 kernel/events/core.c:2746 Code: 0f 84 9f 01 00 00 e8 c7 e9 e7 ff 4c 89 ff e8 af 15 2d 06 e8 ba e9 e7 ff 4c 89 e7 4c 89 ea 48 c7 c6 c0 85 8d 81 e8 f8 8c fe ff <31> ff 41 89 c4 89 c6 e8 1c eb e7 ff 45 85 e4 74 39 e8 92 e9 e7 ff RSP: 0018:ffff88807255fc68 EFLAGS: 00010286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 1ffff11004813228 RCX: ffffc900062ad000 RDX: 000000000001722d RSI: ffffffff818b8290 RDI: 0000000000000005 RBP: ffff88807255fd30 R08: ffff88807254c040 R09: fffffbfff15d29b9 R10: fffffbfff15d29b8 R11: ffffffff8ae94dc7 R12: ffff88807254c040 R13: ffff88801b732000 R14: ffff888024099000 R15: ffff888024099008 __do_sys_perf_event_open+0x1cbc/0x2c70 kernel/events/core.c:11543 __se_sys_perf_event_open kernel/events/core.c:11151 [inline] __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:11151 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a759 Code: bd b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ff605079c88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 000000000045a759 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000440 RBP: 0000000000000005 R08: 0000000000000000 R09: Lost 2 message(s)!