What is CVE-2024-54683?

CVE-2024-54683 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Improper Locking flaw (CWE-667), affecting Linux kernel versions from 2.6.36 onward and patched in 6.6.67, 6.12.6 and 6.13. CVE-2024-54683 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-54683?

CVE-2024-54683 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-54683?

Yes, CVE-2024-54683 has been patched. Fixed versions include 6.6.67, 6.12.6 and 6.13. If you are running Linux kernel 2.6.36 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-54683 actively exploited?

CVE-2024-54683 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/667.html

CVE-2024-54683

Medium

In the Linux kernel, the following vulnerability has been resolved: netfilter: IDLETIMER: Fix for possible ABBA deadlock Deletion of the last rule referencing a given idletimer may happen at the same time as a read of its file in sysfs: | ====================================================== | WARNING: possible circular locking dependency detected | 6.12.0-rc7-01692-g5e9a28f41134-dirty #594 Not tainted | ------------------------------------------------------ | iptables/3303 is trying to acquire lock: | ffff8881057e04b8 (kn->active#48){++++}-{0:0}, at: __kernfs_remove+0x20 | | but task is already holding lock: | ffffffffa0249068 (list_mutex){+.+.}-{3:3}, at: idletimer_tg_destroy_v] | | which lock already depends on the new lock. A simple reproducer is: | #!/bin/bash | | while true; do | iptables -A INPUT -i foo -j IDLETIMER --timeout 10 --label "testme" | iptables -D INPUT -i foo -j IDLETIMER --timeout 10 --label "testme" | done & | while true; do | cat /sys/class/xt_idletimer/timers/testme >/dev/null | done Avoid this by freeing list_mutex right after deleting the element from the list, then continuing with the teardown.

Package Linux Kernel

Published 2025-01-11

Last modified 2025-10-01

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-667

CVE-2024-54683 is a Improper Locking vulnerability

What is Improper Locking?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. Learn more on MITRE CWE

Affected versions

Linux kernel versions 2.6.36 and later are affected. Fixed in 6.6.67, 6.12.6, 6.13 and their respective stable series.

Affected from

≥ 2.6.36

Fixed in

✓ 6.6.67 6.6.x ✓ 6.12.6 6.12.x ✓ 6.13

References

3 total

Kernel Git
https://git.kernel.org/stable/c/45fe76573a2557f632e248cc141342233f422b9a

Patch
Kernel Git
https://git.kernel.org/stable/c/8c2c8445cda8f59c38dec7dc10509bcb23ae26a0

Patch
Kernel Git
https://git.kernel.org/stable/c/f36b01994d68ffc253c8296e2228dfe6e6431c03

Patch

Details

CVE ID CVE-2024-54683

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-01-11

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-54683?

CVE-2024-54683 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Improper Locking flaw (CWE-667) . It affects Linux kernel versions from 2.6.36 onward and has been patched in 6.6.67, 6.12.6 and 6.13. CVE-2024-54683 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-54683?

CVE-2024-54683 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-54683?

Yes. CVE-2024-54683 has been patched. Fixed versions include 6.6.67, 6.12.6 and 6.13. If you are running Linux kernel 2.6.36 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-54683 actively exploited?

No. CVE-2024-54683 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.