What is CVE-2022-48670?

CVE-2022-48670 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 5.18 onward and patched in 5.19.10 and 6.0. CVE-2022-48670 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-48670?

CVE-2022-48670 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-2022-48670?

Yes, CVE-2022-48670 has been patched. Fixed versions include 5.19.10 and 6.0. If you are running Linux kernel 5.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-48670 actively exploited?

CVE-2022-48670 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2022-48670

High

In the Linux kernel, the following vulnerability has been resolved: peci: cpu: Fix use-after-free in adev_release() When auxiliary_device_add() returns an error, auxiliary_device_uninit() is called, which causes refcount for device to be decremented and .release callback will be triggered. Because adev_release() re-calls auxiliary_device_uninit(), it will cause use-after-free: [ 1269.455172] WARNING: CPU: 0 PID: 14267 at lib/refcount.c:28 refcount_warn_saturate+0x110/0x15 [ 1269.464007] refcount_t: underflow; use-after-free.

Package Linux Kernel

Published 2024-05-03

Last modified 2025-01-10

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-416

CVE-2022-48670 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.18 and later are affected. Fixed in 5.19.10, 6.0 and their respective stable series.

Affected from

≥ 5.18

Fixed in

✓ 5.19.10 5.19.x ✓ 6.0

References

2 total

Kernel Git
https://git.kernel.org/stable/c/1c11289b34ab67ed080bbe0f1855c4938362d9cf

Patch
Kernel Git
https://git.kernel.org/stable/c/c87f1f99e26ea4ae08cabe753ae98e5626bdba89

Patch

Details

CVE ID CVE-2022-48670

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-05-03

Modified 2025-01-10

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-48670?

CVE-2022-48670 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 5.18 onward and has been patched in 5.19.10 and 6.0. CVE-2022-48670 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-48670?

CVE-2022-48670 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-2022-48670?

Yes. CVE-2022-48670 has been patched. Fixed versions include 5.19.10 and 6.0. If you are running Linux kernel 5.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-48670 actively exploited?

No. CVE-2022-48670 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.