What is CVE-2023-52804?

CVE-2023-52804 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2023-52804 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52804?

CVE-2023-52804 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-2023-52804?

No patch is currently available for CVE-2023-52804. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-52804 actively exploited?

CVE-2023-52804 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-52804

High

In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add validity check for db_maxag and db_agpref Both db_maxag and db_agpref are used as the index of the db_agfree array, but there is currently no validity check for db_maxag and db_agpref, which can lead to errors. The following is related bug reported by Syzbot: UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:639:20 index 7936 is out of range for type 'atomic_t[128]' Add checking that the values of db_maxag and db_agpref are valid indexes for the db_agfree array.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-09-23

CVSS version 3.1

Patch available

Awaiting data

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-129

CVE-2023-52804 is classified as CWE-129

See CWE-129 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2023-52804 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/1f74d336990f37703a8eee77153463d65b67f70e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11b
Patch

9 patch commits total View all on NVD

Details

CVE ID CVE-2023-52804

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-09-23

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-52804?

CVE-2023-52804 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2023-52804 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52804?

CVE-2023-52804 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-2023-52804?

No patch is currently available for CVE-2023-52804. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-52804 actively exploited?

No — CVE-2023-52804 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.