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6.5
MEDIUM CVSS 3.1
CVE-2024-26886
Bluetooth: af_bluetooth: Fix deadlock
Description

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>

INFO

Published Date :

April 17, 2024, 11:15 a.m.

Last Modified :

March 21, 2025, 2:33 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2024-26886 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
To address the kernel deadlock, update and reboot the Linux kernel.
  • Update the Linux kernel to a patched version.
  • Reboot the system after the kernel update.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-26886.

URL Resource
https://git.kernel.org/stable/c/2c9e2df022ef8b9d7fac58a04a2ef4ed25288955 Patch
https://git.kernel.org/stable/c/64be3c6154886200708da0dfe259705fb992416c Patch
https://git.kernel.org/stable/c/817e8138ce86001b2fa5c63d6ede756e205a01f7 Patch
https://git.kernel.org/stable/c/f7b94bdc1ec107c92262716b073b3e816d4784fb Patch
https://git.kernel.org/stable/c/2c9e2df022ef8b9d7fac58a04a2ef4ed25288955 Patch
https://git.kernel.org/stable/c/64be3c6154886200708da0dfe259705fb992416c Patch
https://git.kernel.org/stable/c/817e8138ce86001b2fa5c63d6ede756e205a01f7 Patch
https://git.kernel.org/stable/c/cb8adca52f306563d958a863bb0cbae9c184d1ae Patch
https://git.kernel.org/stable/c/f7b94bdc1ec107c92262716b073b3e816d4784fb Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-26886 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-26886 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-26886 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2024-26886 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Mar. 21, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.7.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.8 up to (excluding) 6.8.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10.206 up to (excluding) 5.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15.146 up to (excluding) 5.16 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.1.70 up to (excluding) 6.1.83 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.6.9 up to (excluding) 6.6.23
    Added Reference Type CVE: https://git.kernel.org/stable/c/2c9e2df022ef8b9d7fac58a04a2ef4ed25288955 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/2c9e2df022ef8b9d7fac58a04a2ef4ed25288955 Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/64be3c6154886200708da0dfe259705fb992416c Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/64be3c6154886200708da0dfe259705fb992416c Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/817e8138ce86001b2fa5c63d6ede756e205a01f7 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/817e8138ce86001b2fa5c63d6ede756e205a01f7 Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/cb8adca52f306563d958a863bb0cbae9c184d1ae Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/f7b94bdc1ec107c92262716b073b3e816d4784fb Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/f7b94bdc1ec107c92262716b073b3e816d4784fb Types: Patch
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jan. 24, 2025

    Action Type Old Value New Value
    Removed Reference https://git.kernel.org/stable/c/0625d7c240b307b78640dcd823cb738cb900a8ba
    Removed Reference https://git.kernel.org/stable/c/cb8adca52f306563d958a863bb0cbae9c184d1ae
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Dec. 04, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-416
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/2c9e2df022ef8b9d7fac58a04a2ef4ed25288955
    Added Reference https://git.kernel.org/stable/c/64be3c6154886200708da0dfe259705fb992416c
    Added Reference https://git.kernel.org/stable/c/817e8138ce86001b2fa5c63d6ede756e205a01f7
    Added Reference https://git.kernel.org/stable/c/cb8adca52f306563d958a863bb0cbae9c184d1ae
    Added Reference https://git.kernel.org/stable/c/f7b94bdc1ec107c92262716b073b3e816d4784fb
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Nov. 17, 2024

    Action Type Old Value New Value
    Added Reference kernel.org https://git.kernel.org/stable/c/0625d7c240b307b78640dcd823cb738cb900a8ba [No types assigned]
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 29, 2024

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Apr. 17, 2024

    Action Type Old Value New Value
    Added Description 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>
    Added Reference kernel.org https://git.kernel.org/stable/c/cb8adca52f306563d958a863bb0cbae9c184d1ae [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/64be3c6154886200708da0dfe259705fb992416c [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/817e8138ce86001b2fa5c63d6ede756e205a01f7 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/2c9e2df022ef8b9d7fac58a04a2ef4ed25288955 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/f7b94bdc1ec107c92262716b073b3e816d4784fb [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact