Bluetooth: hci7: Controller not accepting commands anymore: ncmd = 0
Bluetooth: hci7: Injecting HCI hardware error event
Bluetooth: hci7: hardware error 0x00
==================================================================
BUG: KASAN: slab-use-after-free in hci_conn_hash_flush+0x1f9/0x230
Read of size 8 at addr ffff88803f4f8000 by task kworker/u5:9/7032
CPU: 1 PID: 7032 Comm: kworker/u5:9 Not tainted 6.2.0-next-20230303 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci7 hci_error_reset
Call Trace:
dump_stack_lvl+0x91/0xf0
print_report+0xcc/0x620
kasan_report+0xc0/0xf0
hci_conn_hash_flush+0x1f9/0x230
hci_dev_close_sync+0x57f/0xff0
hci_error_reset+0xab/0x140
process_one_work+0xa0f/0x1790
worker_thread+0x63b/0x1260
kthread+0x2e9/0x3a0
ret_from_fork+0x2c/0x50
Allocated by task 15160:
kasan_save_stack+0x22/0x50
kasan_set_track+0x25/0x30
__kasan_kmalloc+0x7f/0x90
hci_conn_add+0xa3/0x1470
hci_connect_sco+0x422/0x9d0
sco_sock_connect+0x358/0xa60
__sys_connect_file+0x159/0x1a0
__sys_connect+0x169/0x1a0
__x64_sys_connect+0x73/0xb0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
Freed by task 7032:
kasan_save_stack+0x22/0x50
kasan_set_track+0x25/0x30
kasan_save_free_info+0x2e/0x50
__kasan_slab_free+0x10a/0x190
__kmem_cache_free+0xd1/0x2f0
device_release+0xa6/0x240
kobject_put+0x177/0x270
put_device+0x1f/0x30
hci_conn_del+0x28f/0x940
hci_conn_del+0x6cf/0x940
hci_conn_hash_flush+0x195/0x230
hci_dev_close_sync+0x57f/0xff0
hci_error_reset+0xab/0x140
process_one_work+0xa0f/0x1790
worker_thread+0x63b/0x1260
kthread+0x2e9/0x3a0
ret_from_fork+0x2c/0x50
Last potentially related work creation:
kasan_save_stack+0x22/0x50
__kasan_record_aux_stack+0x95/0xb0
__queue_work+0x5d8/0x1230
__queue_delayed_work+0x1c8/0x270
queue_delayed_work_on+0xcd/0xd0
sco_chan_del+0x1db/0x440
__sco_sock_close+0x21e/0x770
sco_sock_release+0xa1/0x400
__sock_release+0xd2/0x2a0
sock_close+0x1c/0x30
__fput+0x263/0xa40
task_work_run+0x174/0x280
get_signal+0x1d3/0x2450
arch_do_signal_or_restart+0x79/0x590
exit_to_user_mode_prepare+0x122/0x190
syscall_exit_to_user_mode+0x1d/0x50
do_syscall_64+0x4c/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
The buggy address belongs to the object at ffff88803f4f8000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 0 bytes inside of
freed 4096-byte region [ffff88803f4f8000, ffff88803f4f9000)
The buggy address belongs to the physical page:
page:00000000edd8e84e refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3f4f8
head:00000000edd8e84e order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0x100000000010200(slab|head|node=0|zone=1)
page_type: 0xffffffff()
raw: 0100000000010200 ffff888008442140 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88803f4f7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88803f4f7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88803f4f8000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88803f4f8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88803f4f8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 7032 Comm: kworker/u5:9 Tainted: G B 6.2.0-next-20230303 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci7 hci_error_reset
RIP: 0010:hci_conn_cleanup+0x1a5/0x780
Code: 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 34 05 00 00 49 8d 7c 24 08 48 8b 5d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ef 04 00 00 48 89 da 49 89 5c 24 08 48 b8 00 00
RSP: 0018:ffff888034fcfb60 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 053c027f00001b78 RCX: ffffffff83da5944
RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000008
RBP: ffff88803f4f8000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88803f4f8240 R14: dffffc0000000000 R15: ffff88803e294000
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555d30c58 CR3: 0000000036fe6000 CR4: 0000000000350ee0
Call Trace:
hci_conn_del+0x28f/0x940
hci_conn_hash_flush+0x195/0x230
hci_dev_close_sync+0x57f/0xff0
hci_error_reset+0xab/0x140
process_one_work+0xa0f/0x1790
worker_thread+0x63b/0x1260
kthread+0x2e9/0x3a0
ret_from_fork+0x2c/0x50
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hci_conn_cleanup+0x1a5/0x780
Code: 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 34 05 00 00 49 8d 7c 24 08 48 8b 5d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ef 04 00 00 48 89 da 49 89 5c 24 08 48 b8 00 00
RSP: 0018:ffff888034fcfb60 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 053c027f00001b78 RCX: ffffffff83da5944
RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000008
RBP: ffff88803f4f8000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88803f4f8240 R14: dffffc0000000000 R15: ffff88803e294000
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555d30c58 CR3: 0000000036fe6000 CR4: 0000000000350ee0
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 0, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 1, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 2, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 3, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 4, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 5, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 6, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 7, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 0, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 1, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Bluetooth: hci1: command 0x0406 tx timeout
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
SELinux: security_context_str_to_sid (sysadm_u) failed with errno=-22
SELinux: security_context_str_to_sid (sysadm_u) failed with errno=-22
SELinux: security_context_str_to_sid (sysadm_u) failed with errno=-22
SELinux: security_context_str_to_sid (sysadm_u) failed with errno=-22
SELinux: security_context_str_to_sid (sysadm_u) failed with errno=-22
SELinux: security_context_str_to_sid (sysadm_u) failed with errno=-22
SELinux: security_context_str_to_sid (sysadm_u) failed with errno=-22
SELinux: security_context_str_to_sid (sysadm_u) failed with errno=-22
SELinux: security_context_str_to_sid (sysadm_u) failed with errno=-22
SELinux: security_context_str_to_sid (sysadm_u) failed with errno=-22
SELinux: security_context_str_to_sid (sysadm_u) failed with errno=-22
----------------
Code disassembly (best guess):
0: 89 fa mov %edi,%edx
2: 48 c1 ea 03 shr $0x3,%rdx
6: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
a: 0f 85 34 05 00 00 jne 0x544
10: 49 8d 7c 24 08 lea 0x8(%r12),%rdi
15: 48 8b 5d 08 mov 0x8(%rbp),%rbx
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 0f 85 ef 04 00 00 jne 0x523
34: 48 89 da mov %rbx,%rdx
37: 49 89 5c 24 08 mov %rbx,0x8(%r12)
3c: 48 rex.W
3d: b8 .byte 0xb8