What is CVE-2023-52983?

CVE-2023-52983 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 6.0.16 onward. CVE-2023-52983 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52983?

CVE-2023-52983 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-2023-52983?

No patch is currently available for CVE-2023-52983. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-52983 actively exploited?

CVE-2023-52983 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-2023-52983

High

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in bic_set_bfqq() After commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'"), bic->bfqq will be accessed in bic_set_bfqq(), however, in some context bic->bfqq will be freed, and bic_set_bfqq() is called with the freed bic->bfqq. Fix the problem by always freeing bfqq after bic_set_bfqq().

Package Linux Kernel

Published 2025-03-27

Last modified 2025-04-01

CVSS version 3.1

Patch available

Not yet patched

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-2023-52983 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 6.0.16, 5.15.86, 6.1.2 and later are affected. No fixed version recorded yet.

Affected from

≥ 6.0.16 ≥ 5.15.86 ≥ 6.1.2

References

The following references provide additional information about CVE-2023-52983 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/511c922c5bf6c8a166bea826e702336bc2424140
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7f77f3dab5066a7c9da73d72d1eee895ff84a8d5
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b600de2d7d3a16f9007fad1bdae82a3951a26af2
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2023-52983

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-03-27

Modified 2025-04-01

KEV No

Patch

Not yet patched

Package linux

Frequently asked questions

What is CVE-2023-52983?

CVE-2023-52983 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 6.0.16 onward . CVE-2023-52983 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52983?

CVE-2023-52983 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-2023-52983?

No patch is currently available for CVE-2023-52983. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-52983 actively exploited?

No — CVE-2023-52983 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (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. View CWE-416 on MITRE CWE →