What is CVE-2022-48996?

CVE-2022-48996 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 6.0.12 and 6.1. CVE-2022-48996 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-48996?

CVE-2022-48996 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-2022-48996?

Yes, CVE-2022-48996 has been patched. Fixed versions include 6.0.12 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-2022-48996 actively exploited?

CVE-2022-48996 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-48996

Medium

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes() Commit da87878010e5 ("mm/damon/sysfs: support online inputs update") made 'damon_sysfs_set_schemes()' to be called for running DAMON context, which could have schemes. In the case, DAMON sysfs interface is supposed to update, remove, or add schemes to reflect the sysfs files. However, the code is assuming the DAMON context wouldn't have schemes at all, and therefore creates and adds new schemes. As a result, the code doesn't work as intended for online schemes tuning and could have more than expected memory footprint. The schemes are all in the DAMON context, so it doesn't leak the memory, though. Remove the wrong asssumption (the DAMON context wouldn't have schemes) in 'damon_sysfs_set_schemes()' to fix the bug.

Package Linux Kernel

Published 2024-10-21

Last modified 2024-11-07

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 6.0.12, 6.1 and their respective stable series.

Affected from

≥ 5.19

Fixed in

✓ 6.0.12 6.0.x ✓ 6.1

References

The following references provide additional information about CVE-2022-48996 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/95bc35f9bee5220dad4e8567654ab3288a181639
Patch
Kernel patch commit
https://git.kernel.org/stable/c/f98d1f2a36ad7ab48fb4cf73ca14e7b19482fd4d
Patch

Details

CVE ID CVE-2022-48996

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-10-21

Modified 2024-11-07

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-48996?

CVE-2022-48996 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 6.0.12 and 6.1. CVE-2022-48996 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-48996?

CVE-2022-48996 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-2022-48996?

Yes — CVE-2022-48996 has been patched. Fixed versions include 6.0.12 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-2022-48996 actively exploited?

No — CVE-2022-48996 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.