general protection fault, probably for non-canonical address 0xdffffc000000000a: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000050-0x0000000000000057] CPU: 1 PID: 15760 Comm: syz-executor.3 Not tainted 5.18.0-rc3-syzkaller-00080-gd569e86915b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__dentry_path+0x1ce/0x630 fs/d_path.c:342 Code: ff 48 c7 c7 b8 46 81 8c e8 9f e8 2d 08 c7 44 24 04 01 00 00 00 eb 0e 0f 1f 44 00 00 89 44 24 04 e8 c7 a1 92 ff 48 8b 44 24 40 <42> 80 3c 20 00 74 0a 48 8b 7c 24 38 e8 c1 82 e3 ff 49 8b 5d 50 4c RSP: 0018:ffffc9001479fb98 EFLAGS: 00010287 RAX: 000000000000000a RBX: 1ffffffff19028d0 RCX: 0000000000040000 RDX: ffffc9000c142000 RSI: 000000000000168c RDI: 000000000000168d RBP: 0000000000004aa6 R08: ffffffff81f34bf9 R09: fffffbfff1c01866 R10: fffffbfff1c01866 R11: 1ffffffff1c01865 R12: dffffc0000000000 R13: 0000000000000000 R14: ffffc9001479fc60 R15: 0000000000000fff FS: 00007febde43c700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007febde41b718 CR3: 000000007cf41000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dentry_path_raw+0x13b/0x200 fs/d_path.c:367 kvm_uevent_notify_change+0x253/0x3a0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:5492 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1198 [inline] kvm_put_kvm+0xa2/0x11c0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1264 kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:4795 [inline] kvm_dev_ioctl+0xdef/0x1ef0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4811 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7febdd2890e9 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:00007febde43c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007febdd39bf60 RCX: 00007febdd2890e9 RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000003 RBP: 00007febdd2e308d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc25b3a50f R14: 00007febde43c300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__dentry_path+0x1ce/0x630 fs/d_path.c:342 Code: ff 48 c7 c7 b8 46 81 8c e8 9f e8 2d 08 c7 44 24 04 01 00 00 00 eb 0e 0f 1f 44 00 00 89 44 24 04 e8 c7 a1 92 ff 48 8b 44 24 40 <42> 80 3c 20 00 74 0a 48 8b 7c 24 38 e8 c1 82 e3 ff 49 8b 5d 50 4c RSP: 0018:ffffc9001479fb98 EFLAGS: 00010287 RAX: 000000000000000a RBX: 1ffffffff19028d0 RCX: 0000000000040000 RDX: ffffc9000c142000 RSI: 000000000000168c RDI: 000000000000168d RBP: 0000000000004aa6 R08: ffffffff81f34bf9 R09: fffffbfff1c01866 R10: fffffbfff1c01866 R11: 1ffffffff1c01865 R12: dffffc0000000000 R13: 0000000000000000 R14: ffffc9001479fc60 R15: 0000000000000fff FS: 00007febde43c700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbe459691b8 CR3: 000000007cf41000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 c7 c7 b8 46 81 8c mov $0xffffffff8c8146b8,%rdi 7: e8 9f e8 2d 08 callq 0x82de8ab c: c7 44 24 04 01 00 00 movl $0x1,0x4(%rsp) 13: 00 14: eb 0e jmp 0x24 16: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1b: 89 44 24 04 mov %eax,0x4(%rsp) 1f: e8 c7 a1 92 ff callq 0xff92a1eb 24: 48 8b 44 24 40 mov 0x40(%rsp),%rax * 29: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction 2e: 74 0a je 0x3a 30: 48 8b 7c 24 38 mov 0x38(%rsp),%rdi 35: e8 c1 82 e3 ff callq 0xffe382fb 3a: 49 8b 5d 50 mov 0x50(%r13),%rbx 3e: 4c rex.WR