general protection fault, probably for non-canonical address 0xdffffc000000002a: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000150-0x0000000000000157] CPU: 0 PID: 16848 Comm: syz-executor.2 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+0xe1b/0x48a0 kernel/locking/lockdep.c:4250 Code: 94 0a 41 be 01 00 00 00 0f 86 ce 0b 00 00 89 05 1b 09 94 0a e9 c3 0b 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 d2 48 c1 ea 03 <80> 3c 02 00 0f 85 e5 2c 00 00 49 81 3a c0 14 c3 8b 0f 84 b0 f2 ff RSP: 0018:ffffc90016ebf7b8 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 000000000000002a RSI: 0000000000000000 RDI: 0000000000000150 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000150 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88806023c240 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fb669a9e700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000ca3b72 CR3: 00000000497fc000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4959 down_write+0x8d/0x150 kernel/locking/rwsem.c:1531 inode_lock include/linux/fs.h:799 [inline] start_creating+0xa8/0x250 fs/debugfs/inode.c:334 __debugfs_create_file+0x62/0x400 fs/debugfs/inode.c:383 kvm_arch_create_vcpu_debugfs+0x52/0x200 arch/x86/kvm/debugfs.c:48 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+0x1c0b/0x2440 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3617 vfs_ioctl fs/ioctl.c:47 [inline] ksys_ioctl+0x11a/0x180 fs/ioctl.c:771 __do_sys_ioctl fs/ioctl.c:780 [inline] __se_sys_ioctl fs/ioctl.c:778 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:778 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45ca59 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:00007fb669a9dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e79a0 RCX: 000000000045ca59 RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000005 RBP: 000000000078c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000039c R14: 00000000004c635c R15: 00007fb669a9e6d4 Modules linked in: ---[ end trace ef09c2c2c8087e4f ]--- RIP: 0010:__lock_acquire+0xe1b/0x48a0 kernel/locking/lockdep.c:4250 Code: 94 0a 41 be 01 00 00 00 0f 86 ce 0b 00 00 89 05 1b 09 94 0a e9 c3 0b 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 d2 48 c1 ea 03 <80> 3c 02 00 0f 85 e5 2c 00 00 49 81 3a c0 14 c3 8b 0f 84 b0 f2 ff RSP: 0018:ffffc90016ebf7b8 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 000000000000002a RSI: 0000000000000000 RDI: 0000000000000150 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000150 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88806023c240 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fb669a9e700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000ca3b72 CR3: 00000000497fc000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400