What is CVE-2022-50520?

CVE-2022-50520 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 3.2.29 onward and patched in 4.9.337, 4.14.303, 4.19.270 and others. CVE-2022-50520 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50520?

CVE-2022-50520 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-2022-50520?

Yes, CVE-2022-50520 has been patched. Fixed versions include 4.9.337, 4.14.303, 4.19.270 and others. If you are running Linux kernel 3.2.29 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50520 actively exploited?

CVE-2022-50520 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-50520

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios() As comment of pci_get_class() says, it returns a pci_device with its refcount increased and decreased the refcount for the input parameter @from if it is not NULL. If we break the loop in radeon_atrm_get_bios() with 'pdev' not NULL, we need to call pci_dev_put() to decrease the refcount. Add the missing pci_dev_put() to avoid refcount leak.

Package Linux Kernel

Published 2025-10-07

Last modified 2026-03-17

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

Affected versions

Linux kernel versions 3.2.29, 3.4.12, 3.5.5, 3.2.60, 3.6 and later are affected. Fixed in 4.9.337, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2 and their respective stable series.

Affected from

≥ 3.2.29 ≥ 3.4.12 ≥ 3.5.5 ≥ 3.2.60 ≥ 3.6

Fixed in

✓ 4.9.337 4.9.x ✓ 4.14.303 4.14.x ✓ 4.19.270 4.19.x ✓ 5.4.229 5.4.x ✓ 5.10.163 5.10.x ✓ 5.15.86 5.15.x ✓ 6.0.16 6.0.x ✓ 6.1.2 6.1.x ✓ 6.2

References

The following references provide additional information about CVE-2022-50520 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/1079df6acf56f99d86b0081a38c84701412cc90e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3991d98a8a07b71c02f3a39f77d6d9a7f575a5c4
Patch
Kernel patch commit
https://git.kernel.org/stable/c/470a77989037c3ab2b08bf2d026d2c0ddc35ff5b
Patch

9 patch commits total View all on NVD

Details

CVE ID CVE-2022-50520

Severity Medium

CVSS score 5.5 / 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-2022-50520?

CVE-2022-50520 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 3.2.29 onward and has been patched in 4.9.337, 4.14.303, 4.19.270 and others. CVE-2022-50520 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50520?

CVE-2022-50520 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-2022-50520?

Yes — CVE-2022-50520 has been patched. Fixed versions include 4.9.337, 4.14.303, 4.19.270 and others. If you are running Linux kernel 3.2.29 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50520 actively exploited?

No — CVE-2022-50520 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.