RBP: 00007f1e7fdf406b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007f1e7ffe5218 R14: 00007f1e7ffe5180 R15: 00007ffd7e39db88
watchdog: BUG: soft lockup - CPU#0 stuck for 122s! [syz.2.15572:471]
Modules linked in:
CPU: 0 PID: 471 Comm: syz.2.15572 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:pmu_filter_match kernel/events/core.c:2314 [inline]
RIP: 0010:event_filter_match kernel/events/core.c:2326 [inline]
RIP: 0010:perf_iterate_sb_cpu kernel/events/core.c:7532 [inline]
RIP: 0010:perf_iterate_sb+0x5f6/0xd50 kernel/events/core.c:7564
Code: fc e1 ff 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 f7 e8 c2 7e 1c 00 4d 8b 36 49 39 de 74 11 <e8> 65 fc e1 ff e9 4e ff ff ff e8 5b fc e1 ff eb 20 e8 54 fc e1 ff
RSP: 0018:ffffc90001bff990 EFLAGS: 00000287
RAX: 1ffff11023351b02 RBX: ffff888120f78010 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888120f78000
RBP: ffffc90001bff9d0 R08: ffffffff86c37e27 R09: 1ffffffff0d86fc4
R10: dffffc0000000000 R11: fffffbfff0d86fc5 R12: ffff888120f783e8
R13: ffffffff86606c38 R14: ffff888119a8d810 R15: ffff888120f78000
FS:  00007f1e7e7746c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe812eadff8 CR3: 000000015a0a2000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000200000000300
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000602
Call Trace:
 perf_event_bpf_event+0x42d/0x540 kernel/events/core.c:8890
 __bpf_prog_put kernel/bpf/syscall.c:1773 [inline]
 bpf_prog_put+0x7a/0x3a0 kernel/bpf/syscall.c:1783
 bpf_prog_release+0x3b/0x40 kernel/bpf/syscall.c:1791
 __fput+0x2dc/0x730 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x127/0x190 kernel/task_work.c:189
 get_signal+0x1281/0x1300 kernel/signal.c:2579
 arch_do_signal_or_restart+0xe7/0x11b0 arch/x86/kernel/signal.c:805
 handle_signal_work kernel/entry/common.c:145 [inline]
 exit_to_user_mode_loop+0xa2/0xe0 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199
 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f1e7fd5d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1e7e773fd8 EFLAGS: 00000202 ORIG_RAX: 0000000000000038
RAX: fffffffffffffff4 RBX: 00007f1e7ffe5180 RCX: 00007f1e7fd5d159
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000c0126080
RBP: 00007f1e7fdf406b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007f1e7ffe5218 R14: 00007f1e7ffe5180 R15: 00007ffd7e39db88
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 653 Comm: kworker/u4:1 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:229 [inline]
RIP: 0010:smp_call_function_single+0x209/0x490 kernel/smp.c:517
Code: 48 44 89 f6 83 e6 01 31 ff e8 63 90 0a 00 41 83 e6 01 49 bc 00 00 00 00 00 fc ff df 75 0a e8 9e 8c 0a 00 e9 a4 00 00 00 f3 90 <f7> 44 24 48 01 00 00 00 0f 84 8f 00 00 00 e8 84 8c 0a 00 eb e9 e8
RSP: 0018:ffffc90001d6f700 EFLAGS: 00000293
RAX: ffffffff815a28cc RBX: 0000000000000000 RCX: ffff888124700000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90001d6f7f0 R08: ffff8881f7057647 R09: 1ffff1103ee0aec8
R10: dffffc0000000000 R11: ffffed103ee0aec9 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff920003adee4
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1ad550256f CR3: 000000000640f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000200000000300
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 smp_call_function_many_cond+0x8f5/0x9d0 kernel/smp.c:653
 smp_call_function_many kernel/smp.c:716 [inline]
 smp_call_function kernel/smp.c:738 [inline]
 on_each_cpu+0xab/0x180 kernel/smp.c:837
 text_poke_sync arch/x86/kernel/alternative.c:1568 [inline]
 text_poke_bp_batch+0x1cb/0x5f0 arch/x86/kernel/alternative.c:1768
 text_poke_flush arch/x86/kernel/alternative.c:1959 [inline]
 text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1966
 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:126
 __jump_label_update+0x38f/0x3b0 kernel/jump_label.c:459
 jump_label_update+0x34c/0x3e0 kernel/jump_label.c:825
 static_key_disable_cpuslocked+0xc5/0x1a0 kernel/jump_label.c:207
 static_key_disable+0x1a/0x30 kernel/jump_label.c:215
 toggle_allocation_gate+0x3a5/0x440 mm/kfence/core.c:638
 process_one_work+0x6fd/0xbc0 kernel/workqueue.c:2301
 worker_thread+0xa8e/0x13c0 kernel/workqueue.c:2447
 kthread+0x324/0x3b0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298