io_mem_free.part.0+0xb0/0xb9 fs/io_uring.c:8930 io_mem_free fs/io_uring.c:8925 [inline] io_ring_ctx_free fs/io_uring.c:9468 [inline] io_ring_exit_work+0xa31/0xbcc fs/io_uring.c:9621 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307 worker_thread+0x657/0x1110 kernel/workqueue.c:2454 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ------------[ cut here ]------------ kernel BUG at include/linux/memcontrol.h:471! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12469 Comm: syz-executor.2 Not tainted 5.17.0-rc4-syzkaller-00002-gd567f5db412e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:folio_memcg_rcu include/linux/memcontrol.h:471 [inline] RIP: 0010:workingset_activation+0x4f2/0x5d0 mm/workingset.c:412 Code: 48 89 ef e8 50 01 00 00 c6 05 f9 a3 d3 0b 01 0f 0b e9 0e fd ff ff e8 2d 75 cc ff 48 c7 c6 c0 0a b7 89 48 89 ef e8 2e 01 00 00 <0f> 0b e8 17 75 cc ff 0f 0b e9 e6 fb ff ff e8 0b 75 cc ff 48 c7 c6 RSP: 0018:ffffc9000436f6f8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff8880784c8040 RSI: ffffffff81ab8e02 RDI: 0000000000000003 RBP: ffffea0000e10000 R08: 0000000000000018 R09: 00000000ffffffff R10: ffffffff890ba6aa R11: 00000000ffffffff R12: 0000000000000000 R13: ffff8880b9c34da8 R14: 000000000000000c R15: 0000000000000003 FS: 0000555555c0d400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e333000 CR3: 000000001f414000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: folio_mark_accessed+0x596/0xdd0 mm/swap.c:442 kvm_set_pfn_accessed arch/x86/kvm/../../../virt/kvm/kvm_main.c:2821 [inline] kvm_set_pfn_accessed+0x1d8/0x220 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2818 handle_changed_spte_acc_track arch/x86/kvm/mmu/tdp_mmu.c:233 [inline] handle_changed_spte_acc_track+0x1bc/0x290 arch/x86/kvm/mmu/tdp_mmu.c:225 handle_changed_spte arch/x86/kvm/mmu/tdp_mmu.c:485 [inline] handle_removed_tdp_mmu_page arch/x86/kvm/mmu/tdp_mmu.c:370 [inline] __handle_changed_spte+0xb93/0x13e0 arch/x86/kvm/mmu/tdp_mmu.c:475 handle_changed_spte arch/x86/kvm/mmu/tdp_mmu.c:483 [inline] handle_removed_tdp_mmu_page arch/x86/kvm/mmu/tdp_mmu.c:370 [inline] __handle_changed_spte+0xb84/0x13e0 arch/x86/kvm/mmu/tdp_mmu.c:475 handle_changed_spte arch/x86/kvm/mmu/tdp_mmu.c:483 [inline] handle_removed_tdp_mmu_page arch/x86/kvm/mmu/tdp_mmu.c:370 [inline] __handle_changed_spte+0xb84/0x13e0 arch/x86/kvm/mmu/tdp_mmu.c:475 __tdp_mmu_set_spte arch/x86/kvm/mmu/tdp_mmu.c:595 [inline] tdp_mmu_set_spte arch/x86/kvm/mmu/tdp_mmu.c:609 [inline] zap_gfn_range+0xe22/0xfc0 arch/x86/kvm/mmu/tdp_mmu.c:751 __kvm_tdp_mmu_zap_gfn_range+0xdc/0x110 arch/x86/kvm/mmu/tdp_mmu.c:779 kvm_tdp_mmu_zap_gfn_range arch/x86/kvm/mmu/tdp_mmu.h:27 [inline] kvm_tdp_mmu_zap_all+0x26/0x70 arch/x86/kvm/mmu/tdp_mmu.c:791 kvm_mmu_zap_all+0x27c/0x2c0 arch/x86/kvm/mmu/mmu.c:5983 kvm_mmu_notifier_release+0x5f/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:819 mmu_notifier_unregister+0x124/0x3b0 mm/mmu_notifier.c:838 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1203 [inline] kvm_put_kvm+0x48e/0xb60 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1250 kvm_vcpu_release+0x4d/0x70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3668 __fput+0x286/0x9f0 fs/file_table.c:313 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f1505bb1c9b 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:00007ffd6d481500 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f1505bb1c9b RDX: 00007f1505d16508 RSI: ffffffffffffffff RDI: 0000000000000005 RBP: 00007f1505d13960 R08: 0000000000000000 R09: 00007f1505d16510 R10: 00007ffd6d481600 R11: 0000000000000293 R12: 0000000000082637 R13: 00007ffd6d481600 R14: 00007f1505d11f60 R15: 0000000000000032 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_memcg_rcu include/linux/memcontrol.h:471 [inline] RIP: 0010:workingset_activation+0x4f2/0x5d0 mm/workingset.c:412 Code: 48 89 ef e8 50 01 00 00 c6 05 f9 a3 d3 0b 01 0f 0b e9 0e fd ff ff e8 2d 75 cc ff 48 c7 c6 c0 0a b7 89 48 89 ef e8 2e 01 00 00 <0f> 0b e8 17 75 cc ff 0f 0b e9 e6 fb ff ff e8 0b 75 cc ff 48 c7 c6 RSP: 0018:ffffc9000436f6f8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff8880784c8040 RSI: ffffffff81ab8e02 RDI: 0000000000000003 RBP: ffffea0000e10000 R08: 0000000000000018 R09: 00000000ffffffff R10: ffffffff890ba6aa R11: 00000000ffffffff R12: 0000000000000000 R13: ffff8880b9c34da8 R14: 000000000000000c R15: 0000000000000003 FS: 0000555555c0d400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e333000 CR3: 000000001f414000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400