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+0x201/0x240
Read of size 8 at addr ffff88804554c000 by task kworker/u5:1/279
CPU: 1 PID: 279 Comm: kworker/u5:1 Not tainted 6.3.0-next-20230426 #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+0x201/0x240
hci_dev_close_sync+0x57f/0xff0
hci_error_reset+0xab/0x140
process_one_work+0xa20/0x1660
worker_thread+0x64f/0x12a0
kthread+0x33f/0x440
ret_from_fork+0x2c/0x50
Allocated by task 7125:
kasan_save_stack+0x22/0x50
kasan_set_track+0x25/0x30
__kasan_kmalloc+0x7f/0x90
hci_conn_add+0xa3/0x14d0
hci_connect_sco+0x3e7/0x1120
sco_sock_connect+0x2c0/0x9c0
__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 279:
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+0x29f/0x810
hci_conn_unlink+0x211/0x390
hci_conn_unlink+0x2a3/0x390
hci_conn_hash_flush+0x195/0x240
hci_dev_close_sync+0x57f/0xff0
hci_error_reset+0xab/0x140
process_one_work+0xa20/0x1660
worker_thread+0x64f/0x12a0
kthread+0x33f/0x440
ret_from_fork+0x2c/0x50
Last potentially related work creation:
kasan_save_stack+0x22/0x50
__kasan_record_aux_stack+0x95/0xb0
__queue_work+0x622/0x12f0
__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
exit_to_user_mode_prepare+0x17d/0x180
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 ffff88804554c000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 0 bytes inside of
freed 4096-byte region [ffff88804554c000, ffff88804554d000)
The buggy address belongs to the physical page:
page:000000005df315c9 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88804554e000 pfn:0x45548
head:000000005df315c9 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x100000000010200(slab|head|node=0|zone=1)
page_type: 0xffffffff()
raw: 0100000000010200 ffff888008442140 ffffea0001032810 ffffea0000230a10
raw: ffff88804554e000 0000000000040002 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88804554bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88804554bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88804554c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88804554c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88804554c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
general protection fault, probably for non-canonical address 0xe0c0fc4c80000022: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0x0608026400000110-0x0608026400000117]
CPU: 1 PID: 279 Comm: kworker/u5:1 Tainted: G B 6.3.0-next-20230426 #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+0x1c5/0x780
Code: 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 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 ab 04 00 00 48 b8 22 01 00 00 00 00 ad de 4c 89
RSP: 0018:ffff88801d32fb60 EFLAGS: 00010217
RAX: dffffc0000000000 RBX: 0608026400000117 RCX: ffffffff83daa5e3
RDX: 00c1004c80000022 RSI: 0000000000000008 RDI: ffff888043e845e8
RBP: ffff88804554c000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888043e845e0
R13: ffff88804554c260 R14: dffffc0000000000 R15: ffff88800f6b0000
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005582677e5bf8 CR3: 000000000f084000 CR4: 0000000000350ee0
Call Trace:
hci_conn_del+0x29f/0x810
hci_conn_hash_flush+0x19d/0x240
hci_dev_close_sync+0x57f/0xff0
hci_error_reset+0xab/0x140
process_one_work+0xa20/0x1660
worker_thread+0x64f/0x12a0
kthread+0x33f/0x440
ret_from_fork+0x2c/0x50
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hci_conn_cleanup+0x1c5/0x780
Code: 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 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 ab 04 00 00 48 b8 22 01 00 00 00 00 ad de 4c 89
RSP: 0018:ffff88801d32fb60 EFLAGS: 00010217
RAX: dffffc0000000000 RBX: 0608026400000117 RCX: ffffffff83daa5e3
RDX: 00c1004c80000022 RSI: 0000000000000008 RDI: ffff888043e845e8
RBP: ffff88804554c000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888043e845e0
R13: ffff88804554c260 R14: dffffc0000000000 R15: ffff88800f6b0000
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005582677e5bf8 CR3: 000000000f084000 CR4: 0000000000350ee0
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=8364 comm=syz-executor.1
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=8364 comm=syz-executor.1
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=8380 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=8381 comm=syz-executor.1
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=8388 comm=syz-executor.6
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=8402 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=8404 comm=syz-executor.1
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=8407 comm=syz-executor.6
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=8418 comm=syz-executor.3
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=8423 comm=syz-executor.1
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
syz-executor.6 (8507) used greatest stack depth: 23320 bytes left
syz_tun: entered promiscuous mode
syz_tun: left promiscuous mode
syz_tun: entered promiscuous mode
syz_tun: left promiscuous mode
syz-executor.5 (8557) used greatest stack depth: 23288 bytes left
tmpfs: Bad value for 'mpol'
tmpfs: Bad value for 'mpol'
----------------
Code disassembly (best guess), 2 bytes skipped:
0: df 48 89 fisttps -0x77(%rax)
3: fa cli
4: 48 c1 ea 03 shr $0x3,%rdx
8: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
c: 0f 85 ef 04 00 00 jne 0x501
12: 48 89 da mov %rbx,%rdx
15: 49 89 5c 24 08 mov %rbx,0x8(%r12)
1a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
21: fc ff df
24: 48 c1 ea 03 shr $0x3,%rdx
* 28: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2c: 0f 85 ab 04 00 00 jne 0x4dd
32: 48 b8 22 01 00 00 00 movabs $0xdead000000000122,%rax
39: 00 ad de
3c: 4c rex.WR
3d: 89 .byte 0x89