get_signal+0x45a/0x2490 kernel/signal.c:2863 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 irqentry_exit_to_user_mode+0x5/0x40 kernel/entry/common.c:313 ------------[ cut here ]------------ kernel BUG at include/linux/mm.h:717! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 9361 Comm: syz-executor.5 Not tainted 5.17.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:put_page_testzero include/linux/mm.h:717 [inline] RIP: 0010:folio_put_testzero include/linux/mm.h:723 [inline] RIP: 0010:folio_put include/linux/mm.h:1198 [inline] RIP: 0010:put_page include/linux/mm.h:1237 [inline] RIP: 0010:kvm_release_pfn_clean.part.0+0x1f4/0x230 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2792 Code: 41 5c e9 af b4 70 00 e8 aa b4 70 00 49 8d 6c 24 ff e9 7e fe ff ff e8 9b b4 70 00 48 c7 c6 a0 0c a2 89 48 89 ef e8 0c 61 a4 00 <0f> 0b 48 89 df e8 02 2e b8 00 e9 aa fe ff ff 48 89 ef e8 05 2e b8 RSP: 0018:ffffc90005957b78 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffea0001073174 RCX: 0000000000000000 RDX: ffff888047358000 RSI: ffffffff81080ba4 RDI: 0000000000000003 RBP: ffffea0001073140 R08: 0000000000000024 R09: 00000000ffffffff R10: ffffffff890a49c8 R11: 00000000ffffffff R12: 0000000000000000 R13: ffff888041cc5000 R14: 0000000fc0000000 R15: ffff88813fff9100 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020512000 CR3: 0000000046c81000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_release_pfn_clean arch/x86/kvm/../../../virt/kvm/kvm_main.c:2806 [inline] kvm_release_pfn_dirty arch/x86/kvm/../../../virt/kvm/kvm_main.c:2807 [inline] kvm_release_pfn arch/x86/kvm/../../../virt/kvm/kvm_main.c:2707 [inline] kvm_release_pfn+0x91/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2701 __release_gpc arch/x86/kvm/../../../virt/kvm/pfncache.c:121 [inline] __release_gpc arch/x86/kvm/../../../virt/kvm/pfncache.c:107 [inline] kvm_gfn_to_pfn_cache_unmap+0x2e2/0x3a0 arch/x86/kvm/../../../virt/kvm/pfncache.c:296 kvm_gfn_to_pfn_cache_destroy arch/x86/kvm/../../../virt/kvm/pfncache.c:333 [inline] kvm_gfn_to_pfn_cache_destroy+0x199/0x260 arch/x86/kvm/../../../virt/kvm/pfncache.c:326 kvm_xen_destroy_vm+0x18/0x90 arch/x86/kvm/xen.c:811 kvm_arch_destroy_vm+0x360/0x470 arch/x86/kvm/x86.c:11774 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1217 [inline] kvm_put_kvm+0x4fa/0xb60 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1250 kvm_vm_release+0x3f/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1273 __fput+0x286/0x9f0 fs/file_table.c:317 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0xb29/0x2a30 kernel/exit.c:806 __do_sys_exit kernel/exit.c:902 [inline] __se_sys_exit kernel/exit.c:900 [inline] __x64_sys_exit+0x3e/0x50 kernel/exit.c:900 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fde65387049 Code: Unable to access opcode bytes at RIP 0x7fde6538701f. RSP: 002b:00007fde63cdb118 EFLAGS: 00000246 ORIG_RAX: 000000000000003c RAX: ffffffffffffffda RBX: 00007fde6549a030 RCX: 00007fde65387049 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fde653e108d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fde659cdb1f R14: 00007fde63cdb300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:put_page_testzero include/linux/mm.h:717 [inline] RIP: 0010:folio_put_testzero include/linux/mm.h:723 [inline] RIP: 0010:folio_put include/linux/mm.h:1198 [inline] RIP: 0010:put_page include/linux/mm.h:1237 [inline] RIP: 0010:kvm_release_pfn_clean.part.0+0x1f4/0x230 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2792 Code: 41 5c e9 af b4 70 00 e8 aa b4 70 00 49 8d 6c 24 ff e9 7e fe ff ff e8 9b b4 70 00 48 c7 c6 a0 0c a2 89 48 89 ef e8 0c 61 a4 00 <0f> 0b 48 89 df e8 02 2e b8 00 e9 aa fe ff ff 48 89 ef e8 05 2e b8 RSP: 0018:ffffc90005957b78 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffea0001073174 RCX: 0000000000000000 RDX: ffff888047358000 RSI: ffffffff81080ba4 RDI: 0000000000000003 RBP: ffffea0001073140 R08: 0000000000000024 R09: 00000000ffffffff R10: ffffffff890a49c8 R11: 00000000ffffffff R12: 0000000000000000 R13: ffff888041cc5000 R14: 0000000fc0000000 R15: ffff88813fff9100 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fde6589e000 CR3: 000000004ebc8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400