Hi, When using Syzkaller to fuzz the Linux kernel, it triggers the following crash. HEAD commit: a7904a538933 Linux 5.16-rc6 git tree: upstream console output: https://pastebin.com/raw/keWCUeJ2 kernel config: https://docs.google.com/document/d/1w94kqQ4ZSIE6BW-5WIhqp4_Zh7XTPH57L5OF2Xb6O6o/view C reproducer: https://pastebin.com/raw/kSxa6Yit Syzlang reproducer: https://pastebin.com/raw/2RMu8p6E If you fix this issue, please add the following tag to the commit: Reported-by: Yuheng Shen mosesfonscqf75@xxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 5 PID: 29657 at arch/x86/kvm/mmu/tdp_mmu.c:46 kvm_mmu_uninit_tdp_mmu+0xb9/0xf0 Modules linked in: CPU: 5 PID: 29657 Comm: syz-executor.5 Not tainted 5.16.0-rc8+ #10 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 RIP: 0010:kvm_mmu_uninit_tdp_mmu+0xb9/0xf0 Code: ea 03 80 3c 02 00 75 39 48 8b 83 e8 ae 00 00 48 39 c5 75 1a e8 48 86 5a 00 e8 e3 bf 46 00 5b 5d e9 3c 86 5a 00 e8 37 86 5a 00 <0f> 0b eb b7 e8 2e 86 5a 00 0f 0b eb dd e8 a5 38 a1 00 e9 60 ff ff RSP: 0018:ffffc90016057b30 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc90015f89000 RCX: ffff888130d18000 RDX: 0000000000000000 RSI: ffff888130d18000 RDI: 0000000000000002 RBP: ffffc90015f93ef8 R08: ffffffff811cc8f9 R09: 0000000000000000 R10: 0000000000000001 R11: fffffbfff20e793a R12: ffffc90015f8b1c8 R13: 0000000000000003 R14: ffffc90015f8b1e8 R15: dffffc0000000000 FS: 00007f7f240cb700(0000) GS:ffff888135d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f76caf3498 CR3: 0000000123d22000 CR4: 0000000000350ee0 Call Trace: <TASK> kvm_arch_destroy_vm+0x42b/0x5b0 kvm_put_kvm+0x4e9/0xbd0 kvm_vcpu_release+0x4d/0x70 __fput+0x286/0x9f0 task_work_run+0xe0/0x1a0 get_signal+0x1fb5/0x25e0 arch_do_signal_or_restart+0x2ed/0x1c40 exit_to_user_mode_prepare+0x192/0x2a0 syscall_exit_to_user_mode+0x19/0x60 do_syscall_64+0x42/0xb0 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f7f257dd89d Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7f240cac28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007f7f258fd2a0 RCX: 00007f7f257dd89d RDX: 0000000000000000 RSI: 000000000000ae9a RDI: 0000000000000005 RBP: 00007f7f2584a00d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdf486b75f R14: 00007f7f258fd2a0 R15: 00007f7f240cadc0 </TASK>
