kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 11174 Comm: syz-executor.4 Not tainted 5.0.0-rc8+ #89
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kernfs_add_one+0x343/0x4d0 fs/kernfs/dir.c:812
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 52 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 70 48 8d 7b 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 1f 01 00 00 8b 5b 08 31 ff 83
RSP: 0018:ffff88817a777848 EFLAGS: 00010202
kobject: 'loop1' (000000001fbca5ec): kobject_uevent_env
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000e623000
kobject: 'loop1' (000000001fbca5ec): fill_kobj_path: path = '/devices/virtual/block/loop1'
RDX: 0000000000000001 RSI: ffffffff81d2510b RDI: 0000000000000008
RBP: ffff88817a777888 R08: 1ffffffff115121c R09: fffffbfff115121d
R10: fffffbfff115121c R11: ffffffff88a890e7 R12: ffff888099223460
R13: ffff888099223460 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:00000000f5d37b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00007ffe74d0b858 CR3: 00000002195df000 CR4: 00000000001406f0
kobject: 'bluetooth' (000000003a002b00): kobject_add_internal: parent: 'virtual', set: '(null)'
Call Trace:
 kernfs_create_dir_ns+0xff/0x160 fs/kernfs/dir.c:1031
 sysfs_create_dir_ns+0x131/0x2a0 fs/sysfs/dir.c:59
kobject: 'hci0' (00000000f9a68b9b): kobject_add_internal: parent: 'bluetooth', set: 'devices'
kobject: 'hci0' (00000000f9a68b9b): kobject_uevent_env
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal lib/kobject.c:247 [inline]
 kobject_add_internal.cold+0xe5/0x5d4 lib/kobject.c:217
kobject: 'hci0' (00000000f9a68b9b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0'
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_add+0x150/0x1c0 lib/kobject.c:426
kobject: 'rfkill46' (00000000ad551001): kobject_add_internal: parent: 'hci0', set: 'devices'
 device_add+0x3d5/0x1870 drivers/base/core.c:1912
 hci_register_dev+0x304/0x880 net/bluetooth/hci_core.c:3261
 __vhci_create_device+0x2d0/0x5a0 drivers/bluetooth/hci_vhci.c:139
kobject: 'rfkill46' (00000000ad551001): kobject_uevent_env
 vhci_create_device drivers/bluetooth/hci_vhci.c:163 [inline]
 vhci_get_user drivers/bluetooth/hci_vhci.c:219 [inline]
 vhci_write+0x2d0/0x470 drivers/bluetooth/hci_vhci.c:299
 call_write_iter include/linux/fs.h:1863 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x613/0x8e0 fs/read_write.c:487
kobject: 'rfkill46' (00000000ad551001): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill46'
kobject: 'rfkill46' (00000000ad551001): kobject_uevent_env
kobject: 'rfkill46' (00000000ad551001): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill46'
 vfs_write+0x20c/0x580 fs/read_write.c:549
 ksys_write+0xea/0x1f0 fs/read_write.c:598
kobject: 'rfkill46' (00000000ad551001): kobject_cleanup, parent           (null)
kobject: 'rfkill46' (00000000ad551001): calling ktype release
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __ia32_sys_write+0x71/0xb0 fs/read_write.c:607
 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline]
 do_fast_syscall_32+0x281/0xc98 arch/x86/entry/common.c:397
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
kobject: 'rfkill46': free name
RIP: 0023:0xf7f5c869
Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f5d370cc EFLAGS: 00000296 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000200000c0
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
kobject: 'hci0' (00000000f9a68b9b): kobject_uevent_env
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 3177ad440f31fb8f ]---
kobject: 'hci0' (00000000f9a68b9b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0'
RIP: 0010:kernfs_add_one+0x343/0x4d0 fs/kernfs/dir.c:812
kobject: 'bluetooth' (000000003a002b00): kobject_cleanup, parent           (null)
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 52 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 70 48 8d 7b 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 1f 01 00 00 8b 5b 08 31 ff 83
RSP: 0018:ffff88817a777848 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000e623000
RDX: 0000000000000001 RSI: ffffffff81d2510b RDI: 0000000000000008
RBP: ffff88817a777888 R08: 1ffffffff115121c R09: fffffbfff115121d
kobject: 'bluetooth' (000000003a002b00): calling ktype release
R10: fffffbfff115121c R11: ffffffff88a890e7 R12: ffff888099223460
kobject: 'bluetooth': free name
R13: ffff888099223460 R14: 0000000000000000 R15: 0000000000000000
kobject: 'loop0' (00000000413f408d): kobject_uevent_env
FS:  0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:00000000f5d37b40
kobject: 'loop0' (00000000413f408d): fill_kobj_path: path = '/devices/virtual/block/loop0'
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
kobject: 'hci0' (00000000f9a68b9b): kobject_cleanup, parent           (null)
CR2: 000000000814b000 CR3: 00000002195df000 CR4: 00000000001406f0