What is CVE-2024-42253?

CVE-2024-42253 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Improper Locking flaw (CWE-667), affecting Linux kernel versions from 4.7 onward and patched in 6.1.101, 6.6.42, 6.9.11 and others. CVE-2024-42253 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-42253?

CVE-2024-42253 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-42253?

Yes, CVE-2024-42253 has been patched. Fixed versions include 6.1.101, 6.6.42, 6.9.11 and others. If you are running Linux kernel 4.7 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-42253 actively exploited?

CVE-2024-42253 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-2024-42253

Medium

In the Linux kernel, the following vulnerability has been resolved: gpio: pca953x: fix pca953x_irq_bus_sync_unlock race Ensure that `i2c_lock' is held when setting interrupt latch and mask in pca953x_irq_bus_sync_unlock() in order to avoid races. The other (non-probe) call site pca953x_gpio_set_multiple() ensures the lock is held before calling pca953x_write_regs(). The problem occurred when a request raced against irq_bus_sync_unlock() approximately once per thousand reboots on an i.MX8MP based system. * Normal case 0-0022: write register AI|3a {03,02,00,00,01} Input latch P0 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0 0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|12 {fc,00,00,00,00} Config P3 * Race case 0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|08 {03,02,00,00,01} *** Wrong register *** 0-0022: write register AI|12 {fc,00,00,00,00} Config P3 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0

Package Linux Kernel

Published 2024-08-08

Last modified 2025-11-03

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-667

CVE-2024-42253 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 4.7 and later are affected. Fixed in 6.1.101, 6.6.42, 6.9.11, 6.10 and their respective stable series.

Affected from

≥ 4.7

Fixed in

✓ 6.1.101 6.1.x ✓ 6.6.42 6.6.x ✓ 6.9.11 6.9.x ✓ 6.10

References

5 total

Kernel Git
https://git.kernel.org/stable/c/58a5c93bd1a6e949267400080f07e57ffe05ec34

Patch
Kernel Git
https://git.kernel.org/stable/c/bfc6444b57dc7186b6acc964705d7516cbaf3904

Patch
Kernel Git
https://git.kernel.org/stable/c/de7cffa53149c7b48bd1bb29b02390c9f05b7f41

Patch
Kernel Git
https://git.kernel.org/stable/c/e2ecdddca80dd845df42376e4b0197fe97018ba2

Patch
Debian Security
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Details

CVE ID CVE-2024-42253

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2024-08-08

Modified 2025-11-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-42253?

CVE-2024-42253 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as an Improper Locking flaw (CWE-667) . It affects Linux kernel versions from 4.7 onward and has been patched in 6.1.101, 6.6.42, 6.9.11 and others. CVE-2024-42253 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-42253?

CVE-2024-42253 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-42253?

Yes. CVE-2024-42253 has been patched. Fixed versions include 6.1.101, 6.6.42, 6.9.11 and others. If you are running Linux kernel 4.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-42253 actively exploited?

No. CVE-2024-42253 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.