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: 13876 Comm: syz-executor.1 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:ffffc90014de7930 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: ffff888024d03a00 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0063) knlGS:00000000f7f59b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7f38db0 CR3: 000000007d5c9000 CR4: 00000000003506e0 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 __do_compat_sys_ioctl fs/ioctl.c:968 [inline] __se_compat_sys_ioctl fs/ioctl.c:910 [inline] __ia32_compat_sys_ioctl+0x242/0x330 fs/ioctl.c:910 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f5e549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7f595cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000000ae01 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 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:ffffc90014de7930 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: ffff888024d03a00 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0063) knlGS:00000000f7f59b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7f38db0 CR3: 000000007d5c9000 CR4: 00000000003506e0 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