kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci5: failed to register connection device
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:262 at nsproxy_ns_active_get+0x323/0x3d0, CPU#1: syz-executor.5/4718
Modules linked in:
CPU: 1 UID: 0 PID: 4718 Comm: syz-executor.5 Not tainted 6.18.0-rc4-next-20251103 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x323/0x3d0
Code: 00 01 0f 98 c3 31 ff 89 de e8 19 dd ab ff 84 db 75 07 5b 5d e9 3e e2 ab ff e8 39 e2 ab ff 90 0f 0b 90 eb ee e8 2e e2 ab ff 90 <0f> 0b 90 e9 3f fd ff ff e8 20 e2 ab ff 90 0f 0b 90 e9 92 fd ff ff
RSP: 0018:ffff888017bffe08 EFLAGS: 00010216
RAX: 000000000000b436 RBX: ffff8880097c0f70 RCX: ffffc900054b4000
RDX: 0000000000040000 RSI: ffffffff81c89cf2 RDI: 0000000000000001
RBP: ffff88801794c401 R08: 0000000000000001 R09: ffffed1002f29897
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880163db500
R13: 0000000000000000 R14: ffff88800b835340 R15: ffff888017bffe98
FS: 00007fc501c6e700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d22a000 CR3: 000000000a1c7000 CR4: 0000000000350ef0
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x3f0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc5046fa107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc501c6e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007fc50480bf60 RCX: 00007fc5046fa107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff12c2c0ff R14: 00007fc501c6e300 R15: 0000000000022000
irq event stamp: 2333
hardirqs last enabled at (2343): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (2350): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (2244): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (2237): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:262 at nsproxy_ns_active_get+0x331/0x3d0, CPU#1: syz-executor.5/4718
Modules linked in:
CPU: 1 UID: 0 PID: 4718 Comm: syz-executor.5 Tainted: G W 6.18.0-rc4-next-20251103 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x331/0x3d0
Code: 84 db 75 07 5b 5d e9 3e e2 ab ff e8 39 e2 ab ff 90 0f 0b 90 eb ee e8 2e e2 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 20 e2 ab ff 90 <0f> 0b 90 e9 92 fd ff ff e8 12 e2 ab ff 90 0f 0b 90 e9 e5 fd ff ff
RSP: 0018:ffff888017bffe08 EFLAGS: 00010216
RAX: 000000000002aa8c RBX: ffff8880097c0f70 RCX: ffffc900054b4000
RDX: 0000000000040000 RSI: ffffffff81c89d00 RDI: 0000000000000001
RBP: ffff888019afce01 R08: 0000000000000001 R09: ffffed100335fa11
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880163db500
R13: 0000000000000000 R14: ffff88800b835340 R15: ffff888017bffe98
FS: 00007fc501c6e700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d22a000 CR3: 000000000a1c7000 CR4: 0000000000350ef0
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x3f0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc5046fa107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc501c6e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007fc50480bf60 RCX: 00007fc5046fa107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff12c2c0ff R14: 00007fc501c6e300 R15: 0000000000022000
irq event stamp: 2729
hardirqs last enabled at (2739): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (2746): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (2762): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (2755): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:262 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#1: syz-executor.5/4718
Modules linked in:
CPU: 1 UID: 0 PID: 4718 Comm: syz-executor.5 Tainted: G W 6.18.0-rc4-next-20251103 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x33f/0x3d0
Code: ab ff 90 0f 0b 90 eb ee e8 2e e2 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 20 e2 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 12 e2 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 04 e2 ab ff 90 0f 0b 90 e9 38 fe ff ff
RSP: 0018:ffff888017bffe08 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff8880097c0f70 RCX: ffffc900054b4000
RDX: 0000000000040000 RSI: ffffffff81c89d0e RDI: 0000000000000001
RBP: ffff8880175f8001 R08: 0000000000000001 R09: ffffed1002ebf141
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880163db500
R13: 0000000000000000 R14: ffff88800b835340 R15: ffff888017bffe98
FS: 00007fc501c6e700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d22a000 CR3: 000000000a1c7000 CR4: 0000000000350ef0
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x3f0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc5046fa107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc501c6e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007fc50480bf60 RCX: 00007fc5046fa107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff12c2c0ff R14: 00007fc501c6e300 R15: 0000000000022000
irq event stamp: 3129
hardirqs last enabled at (3139): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (3146): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (2762): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (2755): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:262 at nsproxy_ns_active_get+0x35b/0x3d0, CPU#1: syz-executor.5/4718
Modules linked in:
CPU: 1 UID: 0 PID: 4718 Comm: syz-executor.5 Tainted: G W 6.18.0-rc4-next-20251103 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x35b/0x3d0
Code: 0f 0b 90 e9 92 fd ff ff e8 12 e2 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 04 e2 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 f6 e1 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 e8 e1 ab ff 90 0f 0b 90 e9 de fe ff ff
RSP: 0018:ffff888017bffe08 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff8880097c0f70 RCX: ffffc900054b4000
RDX: 0000000000040000 RSI: ffffffff81c89d2a RDI: 0000000000000001
RBP: ffff888016a64801 R08: 0000000000000001 R09: ffffed1002d4c917
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880163db500
R13: 0000000000000000 R14: ffff88800b835340 R15: ffff888017bffe98
FS: 00007fc501c6e700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d22a000 CR3: 000000000a1c7000 CR4: 0000000000350ef0
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x3f0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc5046fa107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc501c6e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007fc50480bf60 RCX: 00007fc5046fa107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff12c2c0ff R14: 00007fc501c6e300 R15: 0000000000022000
irq event stamp: 3529
hardirqs last enabled at (3539): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (3546): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (3574): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (3555): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
debugfs: '0' already exists in 'hci5'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
CPU: 0 UID: 0 PID: 4674 Comm: kworker/u11:8 Tainted: G W 6.18.0-rc4-next-20251103 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci5 hci_rx_work
Call Trace:
dump_stack_lvl+0xfa/0x120
sysfs_warn_dup+0x80/0xa0
sysfs_create_dir_ns+0x23b/0x2a0
kobject_add_internal+0x24c/0x9a0
kobject_add+0x157/0x240
device_add+0x32d/0x1830
hci_conn_add_sysfs+0x117/0x1c0
le_conn_complete_evt+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x5bf/0x6f0
ret_from_fork_asm+0x1a/0x30
loop7: detected capacity change from 0 to 36
kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
EXT4-fs: test_dummy_encryption option not supported
Bluetooth: hci5: failed to register connection device
loop0: detected capacity change from 0 to 36
EXT4-fs: test_dummy_encryption option not supported
debugfs: '0' already exists in 'hci5'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
CPU: 0 UID: 0 PID: 4674 Comm: kworker/u11:8 Tainted: G W 6.18.0-rc4-next-20251103 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci5 hci_rx_work
Call Trace:
dump_stack_lvl+0xfa/0x120
sysfs_warn_dup+0x80/0xa0
sysfs_create_dir_ns+0x23b/0x2a0
kobject_add_internal+0x24c/0x9a0
kobject_add+0x157/0x240
device_add+0x32d/0x1830
hci_conn_add_sysfs+0x117/0x1c0
le_conn_complete_evt+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x5bf/0x6f0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci5: failed to register connection device
loop7: detected capacity change from 0 to 36
EXT4-fs: test_dummy_encryption option not supported
loop0: detected capacity change from 0 to 36
EXT4-fs: test_dummy_encryption option not supported
debugfs: '0' already exists in 'hci5'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
CPU: 0 UID: 0 PID: 4674 Comm: kworker/u11:8 Tainted: G W 6.18.0-rc4-next-20251103 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci5 hci_rx_work
Call Trace:
dump_stack_lvl+0xfa/0x120
sysfs_warn_dup+0x80/0xa0
sysfs_create_dir_ns+0x23b/0x2a0
kobject_add_internal+0x24c/0x9a0
kobject_add+0x157/0x240
device_add+0x32d/0x1830
hci_conn_add_sysfs+0x117/0x1c0
le_conn_complete_evt+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x5bf/0x6f0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci5: failed to register connection device
loop7: detected capacity change from 0 to 36
Bluetooth: hci1: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci2: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci4: command 0x0406 tx timeout
Bluetooth: hci6: command 0x0406 tx timeout
Bluetooth: hci7: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
loop7: detected capacity change from 0 to 36
loop1: detected capacity change from 0 to 36
debugfs: '0' already exists in 'hci5'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
CPU: 0 UID: 0 PID: 295 Comm: kworker/u11:4 Tainted: G W 6.18.0-rc4-next-20251103 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci5 hci_rx_work
Call Trace:
dump_stack_lvl+0xfa/0x120
sysfs_warn_dup+0x80/0xa0
sysfs_create_dir_ns+0x23b/0x2a0
kobject_add_internal+0x24c/0x9a0
kobject_add+0x157/0x240
device_add+0x32d/0x1830
hci_conn_add_sysfs+0x117/0x1c0
le_conn_complete_evt+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x5bf/0x6f0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci5: failed to register connection device
loop7: detected capacity change from 0 to 36
loop0: detected capacity change from 0 to 36
EXT4-fs: test_dummy_encryption option not supported
debugfs: '0' already exists in 'hci5'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
CPU: 0 UID: 0 PID: 291 Comm: kworker/u11:2 Tainted: G W 6.18.0-rc4-next-20251103 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci5 hci_rx_work
Call Trace:
dump_stack_lvl+0xfa/0x120
sysfs_warn_dup+0x80/0xa0
sysfs_create_dir_ns+0x23b/0x2a0
kobject_add_internal+0x24c/0x9a0
kobject_add+0x157/0x240
device_add+0x32d/0x1830
hci_conn_add_sysfs+0x117/0x1c0
le_conn_complete_evt+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x5bf/0x6f0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
loop7: detected capacity change from 0 to 36
Bluetooth: hci5: failed to register connection device
Bluetooth: hci5: command 0x0406 tx timeout