process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 ------------[ cut here ]------------ kernel BUG at include/linux/memcontrol.h:472! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 6942 Comm: syz-executor.1 Not tainted 5.18.0-rc2-syzkaller-00050-ga19944809fe9 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:folio_memcg_rcu include/linux/memcontrol.h:472 [inline] RIP: 0010:workingset_activation+0x5d6/0x6d0 mm/workingset.c:413 Code: 48 89 ef e8 1c 01 00 00 c6 05 b0 24 f4 0b 01 0f 0b e9 00 fc ff ff e8 c9 69 ca ff 48 c7 c6 c0 43 d7 89 48 89 ef e8 fa 00 00 00 <0f> 0b e8 b3 69 ca ff 0f 0b e9 02 fb ff ff e8 a7 69 ca ff 48 c7 c6 RSP: 0018:ffffc900045bf738 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff8880255be0c0 RSI: ffffffff81ade676 RDI: 0000000000000003 RBP: ffffea0001dc0000 R08: 0000000000000018 R09: 00000000ffffffff R10: ffffffff891d3e7c R11: 00000000ffffffff R12: 0000000000000000 R13: ffff88802ca34d68 R14: 000000000000000c R15: 0000000000000003 FS: 0000555556d8c400(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33834000 CR3: 000000001ce18000 CR4: 0000000000152ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: folio_mark_accessed+0x596/0xdd0 mm/swap.c:440 kvm_set_pfn_accessed arch/x86/kvm/../../../virt/kvm/kvm_main.c:2835 [inline] kvm_set_pfn_accessed+0x1d7/0x220 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2832 handle_changed_spte_acc_track arch/x86/kvm/mmu/tdp_mmu.c:354 [inline] handle_changed_spte_acc_track+0x1bc/0x290 arch/x86/kvm/mmu/tdp_mmu.c:346 handle_changed_spte arch/x86/kvm/mmu/tdp_mmu.c:589 [inline] handle_removed_pt arch/x86/kvm/mmu/tdp_mmu.c:472 [inline] __handle_changed_spte+0xb88/0x1510 arch/x86/kvm/mmu/tdp_mmu.c:580 handle_changed_spte arch/x86/kvm/mmu/tdp_mmu.c:587 [inline] handle_removed_pt arch/x86/kvm/mmu/tdp_mmu.c:472 [inline] __handle_changed_spte+0xb79/0x1510 arch/x86/kvm/mmu/tdp_mmu.c:580 __tdp_mmu_set_spte+0x197/0x850 arch/x86/kvm/mmu/tdp_mmu.c:720 _tdp_mmu_set_spte arch/x86/kvm/mmu/tdp_mmu.c:735 [inline] tdp_mmu_set_spte arch/x86/kvm/mmu/tdp_mmu.c:743 [inline] __tdp_mmu_zap_root+0x783/0x7e0 arch/x86/kvm/mmu/tdp_mmu.c:848 tdp_mmu_zap_root+0x12e/0x330 arch/x86/kvm/mmu/tdp_mmu.c:884 kvm_tdp_mmu_zap_all+0x154/0x1b0 arch/x86/kvm/mmu/tdp_mmu.c:992 kvm_mmu_zap_all+0x27c/0x2c0 arch/x86/kvm/mmu/mmu.c:6087 kvm_mmu_notifier_release+0x5f/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:816 mmu_notifier_unregister+0x124/0x3b0 mm/mmu_notifier.c:838 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1216 [inline] kvm_put_kvm+0x48e/0xb70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1264 kvm_vcpu_release+0x4d/0x70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3682 __fput+0x277/0x9d0 fs/file_table.c:317 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:294 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f5b9363bd2b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007fff23780110 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f5b9363bd2b RDX: 00007f5b937a0530 RSI: ffffffffffffffff RDI: 0000000000000005 RBP: 00007f5b9379d960 R08: 0000000000000000 R09: 00007f5b937a0538 R10: 00007fff23780210 R11: 0000000000000293 R12: 000000000006f8a9 R13: 00007fff23780210 R14: 00007f5b9379bf60 R15: 0000000000000032 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_memcg_rcu include/linux/memcontrol.h:472 [inline] RIP: 0010:workingset_activation+0x5d6/0x6d0 mm/workingset.c:413 Code: 48 89 ef e8 1c 01 00 00 c6 05 b0 24 f4 0b 01 0f 0b e9 00 fc ff ff e8 c9 69 ca ff 48 c7 c6 c0 43 d7 89 48 89 ef e8 fa 00 00 00 <0f> 0b e8 b3 69 ca ff 0f 0b e9 02 fb ff ff e8 a7 69 ca ff 48 c7 c6 RSP: 0018:ffffc900045bf738 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff8880255be0c0 RSI: ffffffff81ade676 RDI: 0000000000000003 RBP: ffffea0001dc0000 R08: 0000000000000018 R09: 00000000ffffffff R10: ffffffff891d3e7c R11: 00000000ffffffff R12: 0000000000000000 R13: ffff88802ca34d68 R14: 000000000000000c R15: 0000000000000003 FS: 0000555556d8c400(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33834000 CR3: 000000001ce18000 CR4: 0000000000152ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400