call_write_iter include/linux/fs.h:1774 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x4ae/0x6c0 fs/read_write.c:482
kasan: CONFIG_KASAN_INLINE enabled
 vfs_write+0x198/0x500 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xb8/0x180 fs/read_write.c:581
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
CPU: 0 PID: 15228 Comm: syz-executor.5 Not tainted 4.14.113 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
task: ffff888060c9c6c0 task.stack: ffff888062018000
RIP: 0033:0x458c29
RIP: 0010:__rb_erase_augmented include/linux/rbtree_augmented.h:167 [inline]
RIP: 0010:rb_erase+0x29/0x1c10 lib/rbtree.c:459
RSP: 002b:00007fe1fdb91c78 EFLAGS: 00000246
RSP: 0018:ffff88806201f9d0 EFLAGS: 00010282
 ORIG_RAX: 0000000000000001
RAX: dffffc0000000000 RBX: ffff88808787f8f0 RCX: ffffc9000604e000
RAX: ffffffffffffffda RBX: 00007fe1fdb91c90 RCX: 0000000000458c29
RDX: 0000000000000001 RSI: ffffffff892478c0 RDI: 0000000000000008
RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000004
RBP: ffff88806201fa18 R08: 0000000000001a5d R09: ffffffff88c866a8
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: ffff888060c9cf68 R11: ffff888060c9c6c0 R12: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe1fdb926d4
R13: ffff88808785f7f0 R14: 0000000000000000 R15: ffffffff867a2600
R13: 00000000004c8216 R14: 00000000004de6a8 R15: 0000000000000005
FS:  00007fe8d8d62700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
kobject: 'loop2' (ffff8880a49a51e0): kobject_uevent_env
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop2' (ffff8880a49a51e0): fill_kobj_path: path = '/devices/virtual/block/loop2'
CR2: 00007efdf9ce8000 CR3: 000000009fdde000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 integrity_inode_free+0x126/0x320 security/integrity/iint.c:146
 security_inode_free+0x19/0x90 security/security.c:443
 __destroy_inode+0x1ef/0x4e0 fs/inode.c:237
 destroy_inode+0x50/0x130 fs/inode.c:264
kobject: 'bluetooth' (ffff8880a9838600): kobject_add_internal: parent: 'virtual', set: '(null)'
 evict+0x3e9/0x630 fs/inode.c:571
 iput_final fs/inode.c:1516 [inline]
 iput fs/inode.c:1543 [inline]
 iput+0x476/0x900 fs/inode.c:1528
 swap_inode_boot_loader fs/ext4/ioctl.c:197 [inline]
 ext4_ioctl+0x16bb/0x39b0 fs/ext4/ioctl.c:883
kobject: 'hci0' (ffff88805d10dfe8): kobject_add_internal: parent: 'bluetooth', set: 'devices'
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7b9/0x1070 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
kobject: 'hci0' (ffff88805d10dfe8): kobject_uevent_env
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
kobject: 'hci0' (ffff88805d10dfe8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0'
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x458c29
RSP: 002b:00007fe8d8d61c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000000458c29
RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000003
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe8d8d626d4
R13: 00000000004c0e5f R14: 00000000004d3410 R15: 00000000ffffffff
kobject: 'rfkill100' (ffff88809677ec28): kobject_add_internal: parent: 'hci0', set: 'devices'
Code: 00 00 48 b8 00 00 00 
kobject: 'rfkill100' (ffff88809677ec28): kobject_uevent_env
00 00 fc 
kobject: 'rfkill100' (ffff88809677ec28): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill100'
ff df 55 48 89 e5 41 57 41 56 49 89 fe 48 83 c7 08 48 89 fa 41 55 48 c1 ea 03 41 54 53 48 83 ec 20 <80> 3c 02 00 0f 85 0c 11 00 00 49 8d 7e 10 4d 8b 7e 08 48 b8 00 
RIP: __rb_erase_augmented include/linux/rbtree_augmented.h:167 [inline] RSP: ffff88806201f9d0
RIP: rb_erase+0x29/0x1c10 lib/rbtree.c:459 RSP: ffff88806201f9d0
---[ end trace fdd34455fdfd80a2 ]---