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
kobject: 'hci2' (00000000021bc54c): kobject_add_internal: parent: 'bluetooth', set: 'devices'
CPU: 1 PID: 11680 Comm: syz-executor247 Not tainted 4.19.36 #4
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:ffff88808785f858 EFLAGS: 00010202
kobject: 'hci3' (00000000b9d112f7): kobject_add_internal: parent: 'bluetooth', set: 'devices'
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff86edd7a8
kobject: 'hci4' (000000004921c235): kobject_add_internal: parent: 'bluetooth', set: 'devices'
RDX: 0000000000000001 RSI: ffffffff81ccfbeb RDI: 0000000000000008
RBP: ffff88808785f898 R08: 1ffffffff11105cc R09: fffffbfff11105cd
R10: fffffbfff11105cc R11: ffffffff88882e67 R12: ffff888089363a80
R13: ffff888089363a80 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000d4f880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe45d11f24 CR3: 0000000087cae000 CR4: 00000000001406e0
kobject: 'hci3' (00000000b9d112f7): kobject_uevent_env
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kernfs_create_dir_ns+0xff/0x160 fs/kernfs/dir.c:1031
 sysfs_create_dir_ns+0x131/0x290 fs/sysfs/dir.c:58
kobject: 'hci2' (00000000021bc54c): 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: 'rfkill3822' (000000004de06689): calling ktype release
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_add+0x150/0x1c0 lib/kobject.c:426
kobject: 'hci2' (00000000021bc54c): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2'
kobject: 'hci6' (00000000497420fc): kobject_add_internal: parent: 'bluetooth', set: 'devices'
 device_add+0x3cc/0x1770 drivers/base/core.c:1885
kobject: 'rfkill3824' (000000004be03e65): kobject_add_internal: parent: 'hci2', set: 'devices'
kobject: 'hci4' (000000004921c235): kobject_uevent_env
kobject: 'hci4' (000000004921c235): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4'
 hci_register_dev+0x304/0x880 net/bluetooth/hci_core.c:3198
 __vhci_create_device+0x2d0/0x5a0 drivers/bluetooth/hci_vhci.c:139
 vhci_create_device drivers/bluetooth/hci_vhci.c:163 [inline]
 vhci_get_user drivers/bluetooth/hci_vhci.c:219 [inline]
 vhci_write+0x2d6/0x470 drivers/bluetooth/hci_vhci.c:299
kobject: 'rfkill3822': free name
 call_write_iter include/linux/fs.h:1811 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x58e/0x820 fs/read_write.c:487
kobject: 'hci3' (00000000b9d112f7): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3'
kobject: 'hci6' (00000000497420fc): kobject_uevent_env
kobject: 'rfkill3824' (000000004be03e65): kobject_uevent_env
kobject: 'hci6' (00000000497420fc): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6'
kobject: 'hci5' (00000000e1d05666): kobject_uevent_env
kobject: 'hci5' (00000000e1d05666): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5'
 vfs_write+0x20c/0x560 fs/read_write.c:549
 ksys_write+0xea/0x1f0 fs/read_write.c:598
kobject: 'rfkill3824' (000000004be03e65): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill3824'
kobject: 'rfkill3825' (000000005133806b): kobject_add_internal: parent: 'hci4', set: 'devices'
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
kobject: 'rfkill3824' (000000004be03e65): kobject_uevent_env
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441279
kobject: 'hci5' (00000000e1d05666): kobject_cleanup, parent           (null)
Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffe45d11f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441279
RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 0000000000015f8e R08: 00000000004002c8 R09: 00000000004002c8
R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401ff0
R13: 0000000000402080 R14: 0000000000000000 R15: 0000000000000000
kobject: 'rfkill3825' (000000005133806b): kobject_uevent_env
Modules linked in:
kobject: 'rfkill3825' (000000005133806b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill3825'
---[ end trace 327b1c9d521e3c11 ]---
kobject: 'rfkill3826' (000000004f3b3f08): kobject_add_internal: parent: 'hci6', set: 'devices'
kobject: 'rfkill3824' (000000004be03e65): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill3824'
kobject: 'rfkill3826' (000000004f3b3f08): kobject_uevent_env
kobject: 'hci5' (00000000e1d05666): calling ktype release
kobject: 'rfkill3825' (000000005133806b): kobject_uevent_env
kobject: 'hci5': free name
kobject: 'rfkill3825' (000000005133806b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill3825'
kobject: 'rfkill3826' (000000004f3b3f08): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6/rfkill3826'
kobject: 'hci5' (000000007921a49b): kobject_add_internal: parent: 'bluetooth', set: 'devices'
kobject: 'rfkill3826' (000000004f3b3f08): kobject_uevent_env
kobject: 'rfkill3827' (000000008ff7065c): kobject_add_internal: parent: 'hci3', set: 'devices'
RIP: 0010:kernfs_add_one+0x343/0x4d0 fs/kernfs/dir.c:812
kobject: 'rfkill3827' (000000008ff7065c): kobject_uevent_env
kobject: 'rfkill3826' (000000004f3b3f08): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6/rfkill3826'
kobject: 'hci5' (000000007921a49b): kobject_uevent_env
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
kobject: 'rfkill3827' (000000008ff7065c): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill3827'
RSP: 0018:ffff88808785f858 EFLAGS: 00010202
kobject: 'hci5' (000000007921a49b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5'
kobject: 'rfkill3824' (000000004be03e65): kobject_cleanup, parent           (null)
kobject: 'rfkill3825' (000000005133806b): kobject_cleanup, parent           (null)
kobject: 'rfkill3826' (000000004f3b3f08): kobject_cleanup, parent           (null)
kobject: 'rfkill3826' (000000004f3b3f08): calling ktype release
kobject: 'rfkill3827' (000000008ff7065c): kobject_uevent_env
kobject: 'rfkill3825' (000000005133806b): calling ktype release
kobject: 'rfkill3825': free name
kobject: 'rfkill3824' (000000004be03e65): calling ktype release
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff86edd7a8
kobject: 'hci4' (000000004921c235): kobject_uevent_env
kobject: 'rfkill3826': free name
kobject: 'rfkill3824': free name
kobject: 'rfkill3827' (000000008ff7065c): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill3827'
RDX: 0000000000000001 RSI: ffffffff81ccfbeb RDI: 0000000000000008
kobject: 'hci2' (00000000021bc54c): kobject_uevent_env
kobject: 'hci4' (000000004921c235): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4'
kobject: 'hci6' (00000000497420fc): kobject_uevent_env
kobject: 'rfkill3827' (000000008ff7065c): kobject_cleanup, parent           (null)
kobject: 'hci4' (000000004921c235): kobject_cleanup, parent           (null)
kobject: 'hci2' (00000000021bc54c): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2'
kobject: 'hci6' (00000000497420fc): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6'
kobject: 'hci2' (00000000021bc54c): kobject_cleanup, parent           (null)
kobject: 'hci4' (000000004921c235): calling ktype release
kobject: 'rfkill3828' (00000000e964a541): kobject_add_internal: parent: 'hci5', set: 'devices'
kobject: 'rfkill3827' (000000008ff7065c): calling ktype release
RBP: ffff88808785f898 R08: 1ffffffff11105cc R09: fffffbfff11105cd
kobject: 'hci4': free name
kobject: 'hci2' (00000000021bc54c): calling ktype release
kobject: 'rfkill3827': free name
kobject: 'hci6' (00000000497420fc): kobject_cleanup, parent           (null)
kobject: 'hci2': free name
kobject: 'hci2' (00000000f10ecfa4): kobject_add_internal: parent: 'bluetooth', set: 'devices'
kobject: 'rfkill3828' (00000000e964a541): kobject_uevent_env
kobject: 'hci3' (00000000b9d112f7): kobject_uevent_env
R10: fffffbfff11105cc R11: ffffffff88882e67 R12: ffff888089363a80
kobject: 'hci2' (00000000f10ecfa4): kobject_uevent_env
kobject: 'hci6' (00000000497420fc): calling ktype release
kobject: 'hci4' (0000000066163c98): kobject_add_internal: parent: 'bluetooth', set: 'devices'
kobject: 'hci3' (00000000b9d112f7): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3'
kobject: 'hci2' (00000000f10ecfa4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2'
R13: ffff888089363a80 R14: 0000000000000000 R15: 0000000000000000
kobject: 'hci4' (0000000066163c98): kobject_uevent_env
kobject: 'hci6': free name
kobject: 'hci3' (00000000b9d112f7): kobject_cleanup, parent           (null)
kobject: 'hci4' (0000000066163c98): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4'
kobject: 'rfkill3828' (00000000e964a541): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill3828'
kobject: 'hci3' (00000000b9d112f7): calling ktype release
kobject: 'hci3': free name
FS:  0000000000d4f880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
kobject: 'hci3' (000000001d8a24d3): kobject_add_internal: parent: 'bluetooth', set: 'devices'
kobject: 'hci6' (00000000732725f0): kobject_add_internal: parent: 'bluetooth', set: 'devices'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007feb25771000 CR3: 0000000087cae000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'hci6' (00000000732725f0): kobject_uevent_env
kobject: 'hci3' (000000001d8a24d3): kobject_uevent_env
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'hci3' (000000001d8a24d3): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3'
kobject: 'rfkill3829' (000000002eaa42be): kobject_add_internal: parent: 'hci2', set: 'devices'
kobject: 'rfkill3828' (00000000e964a541): kobject_uevent_env
kobject: 'hci6' (00000000732725f0): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6'
kobject: 'rfkill3828' (00000000e964a541): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill3828'