kthread+0x421/0x510 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [kworker/u4:2:45]
Modules linked in:
CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted 5.15.178-syzkaller-1079134-g058abb720bd1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline]
RIP: 0010:smp_call_function_many_cond+0x843/0x9b0 kernel/smp.c:969
Code: 45 8b 7d 00 44 89 fe 83 e6 01 31 ff e8 06 a6 0a 00 41 83 e7 01 49 bf 00 00 00 00 00 fc ff df 75 07 e8 41 a2 0a 00 eb 38 f3 90 <42> 0f b6 04 3b 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 25 a2
RSP: 0018:ffffc900002ef840 EFLAGS: 00000293
RAX: ffffffff8165ca8b RBX: 1ffff1103ee07af1 RCX: ffff8881055f8000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900002ef958 R08: ffffffff8165ca5a R09: ffffed103ee271d3
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8881f703d788 R14: ffff8881f7138e80 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f992a42ed58 CR3: 0000000006a0f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1135
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1207 [inline]
 text_poke_bp_batch+0x1db/0x720 arch/x86/kernel/alternative.c:1407
 text_poke_flush arch/x86/kernel/alternative.c:1598 [inline]
 text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1605
 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146
 __jump_label_update+0x36a/0x380 kernel/jump_label.c:459
 jump_label_update+0x3af/0x450 kernel/jump_label.c:830
 static_key_enable_cpuslocked+0x12f/0x250 kernel/jump_label.c:177
 static_key_enable+0x1a/0x30 kernel/jump_label.c:190
 toggle_allocation_gate+0xbf/0x460 mm/kfence/core.c:729
 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325
 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472
 kthread+0x421/0x510 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6669 Comm: syz-executor.0 Not tainted 5.15.178-syzkaller-1079134-g058abb720bd1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:_raw_spin_lock_irqsave+0x120/0x210 kernel/locking/spinlock.c:162
Code: c6 ca fc 42 0f b6 04 3b 84 c0 0f 85 bf 00 00 00 8b 44 24 40 b9 01 00 00 00 f0 41 0f b1 4d 00 75 45 48 c7 44 24 20 0e 36 e0 45 <4b> c7 04 37 00 00 00 00 43 c7 44 37 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc9000121fc40 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 1ffff92000243f90 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc9000121fc80
RBP: ffffc9000121fd08 R08: dffffc0000000000 R09: 0000000000000003
R10: fffff52000243f90 R11: dffffc0000000001 R12: ffffc9000121fc80
R13: ffffffff87568740 R14: 1ffff92000243f8c R15: dffffc0000000000
FS:  000055558b259480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f992a42ed58 CR3: 000000011bfe9000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 vga_put drivers/gpu/vga/vgaarb.c:558 [inline]
 vga_arb_release+0x203/0x950 drivers/gpu/vga/vgaarb.c:1350
 __fput+0x228/0x8c0 fs/file_table.c:280
 ____fput+0x15/0x20 fs/file_table.c:308
 task_work_run+0x129/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xc4/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f992a8cb8da
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24
RSP: 002b:00007ffd10734c60 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f992a8cb8da
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000032 R08: 0000001b31b60000 R09: 00007f992a9ec05c
R10: 00007ffd10734db0 R11: 0000000000000293 R12: 00007f992a450338
R13: ffffffffffffffff R14: 00007f992a450000 R15: 000000000000eddc
 </TASK>