What is CVE-2022-50518?

CVE-2022-50518 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Improper Locking flaw (CWE-667), affecting Linux kernel versions from 2.6.24.5 onward and patched in 6.0.18, 6.1.4 and 6.2. CVE-2022-50518 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50518?

CVE-2022-50518 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-50518?

Yes, CVE-2022-50518 has been patched. Fixed versions include 6.0.18, 6.1.4 and 6.2. If you are running Linux kernel 2.6.24.5 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50518 actively exploited?

CVE-2022-50518 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-2022-50518

High

In the Linux kernel, the following vulnerability has been resolved: parisc: Fix locking in pdc_iodc_print() firmware call Utilize pdc_lock spinlock to protect parallel modifications of the iodc_dbuf[] buffer, check length to prevent buffer overflow of iodc_dbuf[], drop the iodc_retbuf[] buffer and fix some wrong indentings.

Package Linux Kernel

Published 2025-10-07

Last modified 2026-03-17

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-667

CVE-2022-50518 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 2.6.24.5, 2.6.25 and later are affected. Fixed in 6.0.18, 6.1.4, 6.2 and their respective stable series.

Affected from

≥ 2.6.24.5 ≥ 2.6.25

Fixed in

✓ 6.0.18 6.0.x ✓ 6.1.4 6.1.x ✓ 6.2

References

The following references provide additional information about CVE-2022-50518 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/04a603058e70b8b881bb7860b8bd649f931f2591
Patch
Kernel patch commit
https://git.kernel.org/stable/c/553bc5890ed96a8d006224c3a4673c47fee0d12a
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7236aae5f81f3efbd93d0601e74fc05994bc2580
Patch

Details

CVE ID CVE-2022-50518

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-10-07

Modified 2026-03-17

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-50518?

CVE-2022-50518 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Improper Locking flaw (CWE-667) . It affects Linux kernel versions from 2.6.24.5 onward and has been patched in 6.0.18, 6.1.4 and 6.2. CVE-2022-50518 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50518?

CVE-2022-50518 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-50518?

Yes — CVE-2022-50518 has been patched. Fixed versions include 6.0.18, 6.1.4 and 6.2. If you are running Linux kernel 2.6.24.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50518 actively exploited?

No — CVE-2022-50518 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. View CWE-667 on MITRE CWE →