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: 28527 Comm: syz-executor.3 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:ffffc900054b7708 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: ffff8880558b8180 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5d93b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f5d72db0 CR3: 0000000055486000 CR4: 00000000001426e0 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+0x9f/0x200 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+0x1c0b/0x2440 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3617 kvm_vm_compat_ioctl+0x125/0x240 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3830 __do_compat_sys_ioctl fs/ioctl.c:865 [inline] __se_compat_sys_ioctl fs/ioctl.c:816 [inline] __ia32_compat_sys_ioctl+0x23d/0x2b0 fs/ioctl.c:816 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline] do_fast_syscall_32+0x270/0xe90 arch/x86/entry/common.c:396 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 Modules linked in: ---[ end trace beb264823758a67b ]--- 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:ffffc900054b7708 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: ffff8880558b8180 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5d93b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f5d72db0 CR3: 0000000055486000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400