kthread+0x34b/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
watchdog: BUG: soft lockup - CPU#1 stuck for 122s! [kworker/1:2:55]
Modules linked in:
CPU: 1 PID: 55 Comm: kworker/1:2 Not tainted 5.10.234-syzkaller-1006684-g094fc3778d6b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events free_work
RIP: 0010:csd_lock_wait kernel/smp.c:229 [inline]
RIP: 0010:smp_call_function_single+0x278/0x510 kernel/smp.c:517
Code: 0f 85 18 02 00 00 44 8b 6c 24 48 44 89 ee 83 e6 01 31 ff e8 ea ec 0a 00 41 83 e5 01 75 0a e8 2f e9 0a 00 e9 eb 00 00 00 f3 90 <42> 0f b6 04 23 84 c0 75 15 f7 44 24 48 01 00 00 00 0f 84 cd 00 00
RSP: 0018:ffffc90000ac7800 EFLAGS: 00000293
RAX: ffffffff815fd644 RBX: 1ffff92000158f09 RCX: ffff88810b31e2c0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000ac78f0 R08: ffffffff815fd616 R09: ffffed103ee0aec9
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: ffffc90000ac7848 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc95671fd58 CR3: 000000011883a000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 smp_call_function_many_cond+0x94e/0xa30 kernel/smp.c:653
 smp_call_function_many kernel/smp.c:716 [inline]
 smp_call_function kernel/smp.c:738 [inline]
 on_each_cpu+0xa8/0x1a0 kernel/smp.c:837
 flush_tlb_kernel_range+0x14d/0x1c0 arch/x86/mm/tlb.c:957
 kasan_release_vmalloc+0xa5/0xb0 mm/kasan/shadow.c:468
 __purge_vmap_area_lazy+0x150e/0x1620 mm/vmalloc.c:1376
 try_purge_vmap_area_lazy+0x38/0x50 mm/vmalloc.c:1395
 free_vmap_area_noflush+0x281/0x2b0 mm/vmalloc.c:1431
 free_unmap_vmap_area mm/vmalloc.c:1444 [inline]
 remove_vm_area+0x1d7/0x1f0 mm/vmalloc.c:2199
 vm_remove_mappings mm/vmalloc.c:2226 [inline]
 __vunmap+0x247/0x940 mm/vmalloc.c:2292
 free_work+0x5b/0x80 mm/vmalloc.c:69
 process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301
 worker_thread+0xaea/0x1510 kernel/workqueue.c:2447
 kthread+0x34b/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3914 Comm: syz-executor.0 Not tainted 5.10.234-syzkaller-1006684-g094fc3778d6b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:kasan_check_range+0xa/0x2a0 mm/kasan/generic.c:188
Code: e8 2b df 05 03 31 c0 5d c3 0f 0b eb 02 0f 0b b8 ea ff ff ff 5d c3 cc cc cc cc cc cc cc cc cc cc 55 48 89 e5 41 57 41 56 41 55 <41> 54 53 b0 01 48 85 f6 0f 84 a4 01 00 00 48 89 fb 48 01 f3 0f 82
RSP: 0018:ffffc9000415fc68 EFLAGS: 00000097
RAX: 0000000000000001 RBX: 1ffff9200082bf9c RCX: ffffffff84b36af9
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc9000415fce0
RBP: ffffc9000415fc80 R08: dffffc0000000000 R09: 0000000000000003
R10: fffffbfff0e23bec R11: dffffc0000000001 R12: ffffc9000415fce0
R13: ffffffff8711df60 R14: 1ffff9200082bf98 R15: dffffc0000000000
FS:  0000555581caf480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcb8204d38 CR3: 000000011883a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:706 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:82 [inline]
 do_raw_spin_lock_flags include/linux/spinlock.h:195 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irqsave+0xf9/0x210 kernel/locking/spinlock.c:159
 vga_put drivers/gpu/vga/vgaarb.c:578 [inline]
 vga_arb_release+0x203/0x950 drivers/gpu/vga/vgaarb.c:1370
 __fput+0x33d/0x7b0 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x129/0x190 kernel/task_work.c:189
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:172
 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
 syscall_exit_to_user_mode+0xa2/0x1a0 kernel/entry/common.c:274
 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fc956bbca1a
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 03 7f 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 63 7f 02 00 8b 44 24
RSP: 002b:00007ffcb8204bf0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fc956bbca1a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000032 R08: 0000001b31b60000 R09: 00007fc956cdd05c
R10: 00007ffcb8204d40 R11: 0000000000000293 R12: 00007fc956741418
R13: ffffffffffffffff R14: 00007fc956741000 R15: 000000000000da6f