What is CVE-2022-49786?

CVE-2022-49786 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.19 onward and patched in 6.0.10 and 6.1. CVE-2022-49786 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49786?

CVE-2022-49786 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-2022-49786?

Yes, CVE-2022-49786 has been patched. Fixed versions include 6.0.10 and 6.1. If you are running Linux kernel 5.19 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49786 actively exploited?

CVE-2022-49786 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49786

Medium

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: properly pin the parent in blkcg_css_online blkcg_css_online is supposed to pin the blkcg of the parent, but 397c9f46ee4d refactored things and along the way, changed it to pin the css instead. This results in extra pins, and we end up leaking blkcgs and cgroups.

Package Linux Kernel

Published 2025-05-01

Last modified 2025-11-07

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 5.19 and later are affected. Fixed in 6.0.10, 6.1 and their respective stable series.

Affected from

≥ 5.19

Fixed in

✓ 6.0.10 6.0.x ✓ 6.1

References

The following references provide additional information about CVE-2022-49786 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/d118247e404d6338f7b90636a3c6b95a387ed163
Patch
Kernel patch commit
https://git.kernel.org/stable/c/d7dbd43f4a828fa1d9a8614d5b0ac40aee6375fe
Patch

Details

CVE ID CVE-2022-49786

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-01

Modified 2025-11-07

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49786?

CVE-2022-49786 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.19 onward and has been patched in 6.0.10 and 6.1. CVE-2022-49786 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49786?

CVE-2022-49786 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-2022-49786?

Yes — CVE-2022-49786 has been patched. Fixed versions include 6.0.10 and 6.1. If you are running Linux kernel 5.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49786 actively exploited?

No — CVE-2022-49786 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.