general protection fault, probably for non-canonical address 0xdffffc0000000027: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000138-0x000000000000013f] CPU: 1 PID: 4074 Comm: syz-executor.2 Not tainted 5.17.0-syzkaller-13993-g88e6c0207623 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0xd85/0x56c0 kernel/locking/lockdep.c:4899 Code: 1a 0e 41 be 01 00 00 00 0f 86 c8 00 00 00 89 05 01 9d 1a 0e e9 bd 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 15 31 00 00 48 81 3b 20 e4 22 8f 0f 84 4f f3 ff RSP: 0018:ffffc900064a7958 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000138 RCX: 0000000000000000 RDX: 0000000000000027 RSI: 0000000000000000 RDI: 0000000000000138 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88801fd61d00 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f04417ec700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020e28000 CR3: 000000007b7cc000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire kernel/locking/lockdep.c:5641 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606 flush_workqueue+0x110/0x13a0 kernel/workqueue.c:2809 kvm_mmu_uninit_tdp_mmu+0x7f/0x170 arch/x86/kvm/mmu/tdp_mmu.c:51 kvm_arch_destroy_vm+0x350/0x470 arch/x86/kvm/x86.c:11813 kvm_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1144 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:4736 [inline] kvm_dev_ioctl+0x104d/0x1c00 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4791 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f0440689049 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f04417ec168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f044079c100 RCX: 00007f0440689049 RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000003 RBP: 00007f04406e308d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0440ccfb1f R14: 00007f04417ec300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0xd85/0x56c0 kernel/locking/lockdep.c:4899 Code: 1a 0e 41 be 01 00 00 00 0f 86 c8 00 00 00 89 05 01 9d 1a 0e e9 bd 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 15 31 00 00 48 81 3b 20 e4 22 8f 0f 84 4f f3 ff RSP: 0018:ffffc900064a7958 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000138 RCX: 0000000000000000 RDX: 0000000000000027 RSI: 0000000000000000 RDI: 0000000000000138 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88801fd61d00 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f04417ec700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020e28000 CR3: 000000007b7cc000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 1a 0e sbb (%rsi),%cl 2: 41 be 01 00 00 00 mov $0x1,%r14d 8: 0f 86 c8 00 00 00 jbe 0xd6 e: 89 05 01 9d 1a 0e mov %eax,0xe1a9d01(%rip) # 0xe1a9d15 14: e9 bd 00 00 00 jmpq 0xd6 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 da mov %rbx,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 15 31 00 00 jne 0x3149 34: 48 81 3b 20 e4 22 8f cmpq $0xffffffff8f22e420,(%rbx) 3b: 0f .byte 0xf 3c: 84 4f f3 test %cl,-0xd(%rdi) 3f: ff .byte 0xff