AI Score
Confidence
Low
EPSS
Percentile
15.5%
SSVC
Exploitation
none
Automatable
no
Technical Impact
partial
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: af_bluetooth: Fix deadlock
Attemting to do sock_lock on .recvmsg may cause a deadlock as shown
bellow, so instead of using sock_sock this uses sk_receive_queue.lock
on bt_sock_ioctl to avoid the UAF:
INFO: task kworker/u9:1:121 blocked for more than 30 seconds.
Not tainted 6.7.6-lemon #183
Workqueue: hci0 hci_rx_work
Call Trace:
<TASK>
__schedule+0x37d/0xa00
schedule+0x32/0xe0
__lock_sock+0x68/0xa0
? __pfx_autoremove_wake_function+0x10/0x10
lock_sock_nested+0x43/0x50
l2cap_sock_recv_cb+0x21/0xa0
l2cap_recv_frame+0x55b/0x30a0
? psi_task_switch+0xeb/0x270
? finish_task_switch.isra.0+0x93/0x2a0
hci_rx_work+0x33a/0x3f0
process_one_work+0x13a/0x2f0
worker_thread+0x2f0/0x410
? __pfx_worker_thread+0x10/0x10
kthread+0xe0/0x110
? __pfx_kthread+0x10/0x10
ret_from_fork+0x2c/0x50
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1b/0x30
</TASK>
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "37f71e2c9f51",
"lessThan": "cb8adca52f30",
"versionType": "git"
},
{
"status": "affected",
"version": "1d576c3a5af8",
"lessThan": "64be3c615488",
"versionType": "git"
},
{
"status": "affected",
"version": "2e07e8348ea4",
"lessThan": "817e8138ce86",
"versionType": "git"
},
{
"status": "affected",
"version": "2e07e8348ea4",
"lessThan": "2c9e2df022ef",
"versionType": "git"
},
{
"status": "affected",
"version": "2e07e8348ea4",
"lessThan": "f7b94bdc1ec1",
"versionType": "git"
}
],
"programFiles": [
"net/bluetooth/af_bluetooth.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.7",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "6.1.83",
"versionType": "custom",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.23",
"versionType": "custom",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.7.11",
"versionType": "custom",
"lessThanOrEqual": "6.7.*"
},
{
"status": "unaffected",
"version": "6.8.2",
"versionType": "custom",
"lessThanOrEqual": "6.8.*"
},
{
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/bluetooth/af_bluetooth.c"
],
"defaultStatus": "affected"
}
]
git.kernel.org/stable/c/2c9e2df022ef8b9d7fac58a04a2ef4ed25288955
git.kernel.org/stable/c/64be3c6154886200708da0dfe259705fb992416c
git.kernel.org/stable/c/817e8138ce86001b2fa5c63d6ede756e205a01f7
git.kernel.org/stable/c/cb8adca52f306563d958a863bb0cbae9c184d1ae
git.kernel.org/stable/c/f7b94bdc1ec107c92262716b073b3e816d4784fb