What is CVE-2022-49064?

CVE-2022-49064 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.17 onward and patched in 5.17.4 and 5.18. CVE-2022-49064 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49064?

CVE-2022-49064 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-2022-49064?

Yes, CVE-2022-49064 has been patched. Fixed versions include 5.17.4 and 5.18. If you are running Linux kernel 5.17 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49064 actively exploited?

CVE-2022-49064 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49064

Medium

In the Linux kernel, the following vulnerability has been resolved: cachefiles: unmark inode in use in error path Unmark inode in use if error encountered. If the in-use flag leakage occurs in cachefiles_open_file(), Cachefiles will complain "Inode already in use" when later another cookie with the same index key is looked up. If the in-use flag leakage occurs in cachefiles_create_tmpfile(), though the "Inode already in use" warning won't be triggered, fix the leakage anyway.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-14

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 5.17 and later are affected. Fixed in 5.17.4, 5.18 and their respective stable series.

Affected from

≥ 5.17

Fixed in

✓ 5.17.4 5.17.x ✓ 5.18

References

The following references provide additional information about CVE-2022-49064 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/b2055abafd3d4ee0376fb3eed5cae866316995a1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/ea5dc046127e857a7873ae55fd57c866e9e86fb2
Patch

Details

CVE ID CVE-2022-49064

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49064?

CVE-2022-49064 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.17 onward and has been patched in 5.17.4 and 5.18. CVE-2022-49064 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49064?

CVE-2022-49064 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-2022-49064?

Yes — CVE-2022-49064 has been patched. Fixed versions include 5.17.4 and 5.18. If you are running Linux kernel 5.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49064 actively exploited?

No — CVE-2022-49064 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.