watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.2.37:5414] Modules linked in: irq event stamp: 11008527 hardirqs last enabled at (11008526): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (11008527): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1037 softirqs last enabled at (10960190): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last enabled at (10960190): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last enabled at (10960190): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 softirqs last disabled at (10960193): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (10960193): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (10960193): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 CPU: 1 UID: 0 PID: 5414 Comm: syz.2.37 Not tainted 6.11.0-syzkaller-10565-g60f802e2d6e1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:ip6_rcv_finish+0x147/0x180 net/ipv6/ip6_input.c:79 Code: d3 66 90 49 89 c7 4d 85 ff 75 0c eb 35 e8 01 4a 31 f7 4d 85 ff 74 2b e8 f7 49 31 f7 4c 89 f7 4c 89 fe e8 4c 00 00 00 4c 89 ff <5b> 41 5c 41 5d 41 5e 41 5f e9 5b 04 00 00 e8 d6 49 31 f7 4d 85 ff RSP: 0018:ffffc90000a187b0 EFLAGS: 00000246 RAX: 9bb63acc2727c500 RBX: 0000000000000000 RCX: ffff88801d7d9e00 RDX: ffff8880244e4bc1 RSI: 0000000008000000 RDI: ffff8880244e4b40 RBP: ffffc90000a188f0 R08: ffffffff8a684dd0 R09: 1ffffffff2039cad R10: dffffc0000000000 R11: fffffbfff2039cae R12: ffff88802dae2000 R13: dffffc0000000000 R14: ffff888066d58000 R15: ffff8880244e4b40 FS: 00007f3d3d2226c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200029c0 CR3: 0000000026d26000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314 __netif_receive_skb_one_core net/core/dev.c:5662 [inline] __netif_receive_skb+0x1ea/0x650 net/core/dev.c:5775 process_backlog+0x662/0x15b0 net/core/dev.c:6107 __napi_poll+0xcb/0x490 net/core/dev.c:6771 napi_poll net/core/dev.c:6840 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:6962 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1037 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__schedule+0xc/0x4b30 kernel/sched/core.c:6533 Code: 3a 32 f6 c3 cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 41 56 <41> 55 41 54 53 48 83 e4 e0 48 81 ec c0 01 00 00 89 7c 24 38 65 48 RSP: 0018:ffffc90004b274a0 EFLAGS: 00000246 RAX: 1ffff11003afb659 RBX: ffff88801d7db2c8 RCX: ffffffff8bce4700 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 RBP: ffffc90004b274b0 R08: ffff88801ac7b063 R09: 1ffff1100358f60c R10: dffffc0000000000 R11: ffffed100358f60d R12: 1ffff92000964ea0 R13: dffffc0000000000 R14: ffffffff8bcc74f1 R15: dffffc0000000000 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6854 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6878 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] __text_poke+0xa6b/0xd30 arch/x86/kernel/alternative.c:1960 text_poke arch/x86/kernel/alternative.c:1984 [inline] text_poke_bp_batch+0x265/0xb30 arch/x86/kernel/alternative.c:2292 text_poke_flush arch/x86/kernel/alternative.c:2486 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2493 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 tracepoint_add_func+0x953/0x9e0 kernel/tracepoint.c:361 tracepoint_probe_register_prio kernel/tracepoint.c:511 [inline] tracepoint_probe_register+0x105/0x160 kernel/tracepoint.c:531 perf_trace_event_reg kernel/trace/trace_event_perf.c:129 [inline] perf_trace_event_init+0x478/0x930 kernel/trace/trace_event_perf.c:202 perf_trace_init+0x243/0x2e0 kernel/trace/trace_event_perf.c:226 perf_tp_event_init+0x8d/0x110 kernel/events/core.c:10358 perf_try_init_event+0x146/0x810 kernel/events/core.c:11892 perf_init_event kernel/events/core.c:11978 [inline] perf_event_alloc+0x135f/0x2310 kernel/events/core.c:12260 __do_sys_perf_event_open kernel/events/core.c:12767 [inline] __se_sys_perf_event_open+0xb1f/0x3870 kernel/events/core.c:12658 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3d3c37dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3d3d222038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f3d3c535f80 RCX: 00007f3d3c37dff9 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007f3d3c3f0296 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3d3c535f80 R15: 00007fff5ff818e8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5408 Comm: syz.3.36 Not tainted 6.11.0-syzkaller-10565-g60f802e2d6e1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:asm_sysvec_irq_work+0x0/0x20 arch/x86/include/asm/idtentry.h:738 Code: b6 23 e4 ff e9 51 05 00 00 90 f3 0f 1e fa 0f 01 ca fc 6a ff e8 01 04 00 00 48 89 c4 48 89 e7 e8 16 04 e4 ff e9 31 05 00 00 90 0f 1e fa 0f 01 ca fc 6a ff e8 e1 03 00 00 48 89 c4 48 89 e7 e8 RSP: 0018:ffffc90000007e18 EFLAGS: 00000086 RAX: c33408b111bc7000 RBX: ffffc90000007ee0 RCX: ffffffff8170892a RDX: dffffc0000000000 RSI: ffffffff8c0aca40 RDI: ffffffff8c6100a0 RBP: ffffc90000007f50 R08: ffffffff942687f7 R09: 1ffffffff284d0fe R10: dffffc0000000000 R11: fffffbfff284d0ff R12: 0000000000000200 R13: 0000000000000000 R14: ffffffff8e60a0c0 R15: 1ffff11003875780 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555591dbf5c8 CR3: 000000002b6c6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: RIP: 0010:variable_ffs arch/x86/include/asm/bitops.h:321 [inline] RIP: 0010:handle_softirqs+0x1e3/0x980 kernel/softirq.c:542 Code: 7c 24 70 45 0f b7 e4 48 c7 c7 60 bf 09 8c e8 a4 1a 6d 0a 65 66 c7 05 62 7e ac 7e 00 00 e8 55 1b 45 00 fb 49 c7 c6 c0 a0 60 8e ff ff ff ff 41 0f bc c4 41 89 c7 41 ff c7 0f 84 eb 03 00 00 44 RSP: 0018:ffffc90000007e40 EFLAGS: 00000286