What is CVE-2023-52774?

CVE-2023-52774 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 3.1 onward and patched in 4.14.332, 4.19.301, 5.4.263 and others. CVE-2023-52774 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52774?

CVE-2023-52774 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-2023-52774?

Yes, CVE-2023-52774 has been patched. Fixed versions include 4.14.332, 4.19.301, 5.4.263 and others. If you are running Linux kernel 3.1 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52774 actively exploited?

CVE-2023-52774 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2023-52774

Medium

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: protect device queue against concurrent access In dasd_profile_start() the amount of requests on the device queue are counted. The access to the device queue is unprotected against concurrent access. With a lot of parallel I/O, especially with alias devices enabled, the device queue can change while dasd_profile_start() is accessing the queue. In the worst case this leads to a kernel panic due to incorrect pointer accesses. Fix this by taking the device lock before accessing the queue and counting the requests. Additionally the check for a valid profile data pointer can be done earlier to avoid unnecessary locking in a hot path.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-09-23

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

Weakness type

CWE-476

CVE-2023-52774 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 3.1 and later are affected. Fixed in 4.14.332, 4.19.301, 5.4.263, 5.10.203, 5.15.141, 6.1.65, 6.6.4, 6.7 and their respective stable series.

Affected from

≥ 3.1

Fixed in

✓ 4.14.332 4.14.x ✓ 4.19.301 4.19.x ✓ 5.4.263 5.4.x ✓ 5.10.203 5.10.x ✓ 5.15.141 5.15.x ✓ 6.1.65 6.1.x ✓ 6.6.4 6.6.x ✓ 6.7

References

8 total

Kernel Git
https://git.kernel.org/stable/c/6062c527d0403cef27c54b91ac8390c3a497b250

Patch
Kernel Git
https://git.kernel.org/stable/c/9372aab5d0ff621ea203c8c603e7e5f75e888240

Patch
Kernel Git
https://git.kernel.org/stable/c/c841de6247e94e07566d57163d3c0d8b29278f7a

Patch
Kernel Git
https://git.kernel.org/stable/c/db46cd1e0426f52999d50fa72cfa97fa39952885

Patch
Kernel Git
https://git.kernel.org/stable/c/dc96fde8fcb2b896fd6c64802a7f4ece2e69b0be

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2023-52774

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-09-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-52774?

CVE-2023-52774 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 3.1 onward and has been patched in 4.14.332, 4.19.301, 5.4.263 and others. CVE-2023-52774 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52774?

CVE-2023-52774 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-2023-52774?

Yes. CVE-2023-52774 has been patched. Fixed versions include 4.14.332, 4.19.301, 5.4.263 and others. If you are running Linux kernel 3.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52774 actively exploited?

No. CVE-2023-52774 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.