general protection fault, probably for non-canonical address 0xdffffc000000002a: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000150-0x0000000000000157] CPU: 1 PID: 312 Comm: syz-executor.1 Not tainted 5.7.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0x84/0x2c30 kernel/locking/lockdep.c:4250 Code: 84 c0 48 89 7c 24 10 0f 85 3e 17 00 00 83 3d 32 d8 12 08 00 0f 84 6e 17 00 00 83 3d 25 b7 d4 07 00 74 2d 48 89 f8 48 c1 e8 03 <80> 3c 30 00 74 14 e8 01 e2 59 00 48 8b 7c 24 10 48 be 00 00 00 00 RSP: 0018:ffffc900083afa60 EFLAGS: 00010002 RAX: 000000000000002a RBX: ffff8880514303c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000150 RBP: ffffc900083afbd0 R08: 0000000000000001 R09: 0000000000000000 R10: fffffbfff12d8975 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 00007ff2404d4700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff240490db8 CR3: 0000000051b33000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x169/0x480 kernel/locking/lockdep.c:4959 down_write+0x55/0x130 kernel/locking/rwsem.c:1531 inode_lock include/linux/fs.h:799 [inline] start_creating+0xb7/0x2c0 fs/debugfs/inode.c:334 __debugfs_create_file+0x74/0x480 fs/debugfs/inode.c:383 kvm_arch_create_vcpu_debugfs+0x97/0x1b0 arch/x86/kvm/debugfs.c:52 kvm_create_vcpu_debugfs arch/x86/kvm/../../../virt/kvm/kvm_main.c:3012 [inline] kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:3089 [inline] kvm_vm_ioctl+0x1cfd/0x2680 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3617 vfs_ioctl fs/ioctl.c:47 [inline] ksys_ioctl fs/ioctl.c:771 [inline] __do_sys_ioctl fs/ioctl.c:780 [inline] __se_sys_ioctl+0xf9/0x160 fs/ioctl.c:778 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45ca69 Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ff2404d3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e7900 RCX: 000000000045ca69 RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000005 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000039c R14: 00000000004c637a R15: 00007ff2404d46d4 Modules linked in: ---[ end trace 07e8987b4391903c ]--- RIP: 0010:__lock_acquire+0x84/0x2c30 kernel/locking/lockdep.c:4250 Code: 84 c0 48 89 7c 24 10 0f 85 3e 17 00 00 83 3d 32 d8 12 08 00 0f 84 6e 17 00 00 83 3d 25 b7 d4 07 00 74 2d 48 89 f8 48 c1 e8 03 <80> 3c 30 00 74 14 e8 01 e2 59 00 48 8b 7c 24 10 48 be 00 00 00 00 RSP: 0018:ffffc900083afa60 EFLAGS: 00010002 RAX: 000000000000002a RBX: ffff8880514303c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000150 RBP: ffffc900083afbd0 R08: 0000000000000001 R09: 0000000000000000 R10: fffffbfff12d8975 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 00007ff2404d4700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff240490db8 CR3: 0000000051b33000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400