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7.8
HIGH CVSS 3.1
CVE-2023-52804
fs/jfs: Add validity check for db_maxag and db_agpref
Description

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.

INFO

Published Date :

May 21, 2024, 4:15 p.m.

Last Modified :

Sept. 23, 2025, 10:40 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2023-52804 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
Solution
Update the Linux packages to address the array index out-of-bounds vulnerability.
  • Update the affected Linux packages.
  • Update the kernel-livepatch package if applicable.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-52804.

URL Resource
https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70e Patch
https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721f Patch
https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11b Patch
https://git.kernel.org/stable/c/5013f8269887642cca784adc8db9b5f0b771533f Patch
https://git.kernel.org/stable/c/64933ab7b04881c6c18b21ff206c12278341c72e Patch
https://git.kernel.org/stable/c/a0649e2dd4a3595b5595a29d0064d047c2fae2fb Patch
https://git.kernel.org/stable/c/c6c8863fb3f57700ab583d875adda04caaf2278a Patch
https://git.kernel.org/stable/c/ce15b0f1a431168f07b1cc6c9f71206a2db5c809 Patch
https://git.kernel.org/stable/c/dca403bb035a565bb98ecc1dda5d30f676feda40 Patch
https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70e Patch
https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721f Patch
https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11b Patch
https://git.kernel.org/stable/c/5013f8269887642cca784adc8db9b5f0b771533f Patch
https://git.kernel.org/stable/c/64933ab7b04881c6c18b21ff206c12278341c72e Patch
https://git.kernel.org/stable/c/a0649e2dd4a3595b5595a29d0064d047c2fae2fb Patch
https://git.kernel.org/stable/c/c6c8863fb3f57700ab583d875adda04caaf2278a Patch
https://git.kernel.org/stable/c/ce15b0f1a431168f07b1cc6c9f71206a2db5c809 Patch
https://git.kernel.org/stable/c/dca403bb035a565bb98ecc1dda5d30f676feda40 Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-52804 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-52804 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-52804 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-52804 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Sep. 23, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-129
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.6 up to (excluding) 6.6.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.5.13 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.64 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.262 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.202 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.140 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.14.331 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.300
    Added Reference Type CVE: https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70e Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70e Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721f Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721f Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11b Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11b Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/5013f8269887642cca784adc8db9b5f0b771533f Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/5013f8269887642cca784adc8db9b5f0b771533f Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/64933ab7b04881c6c18b21ff206c12278341c72e Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/64933ab7b04881c6c18b21ff206c12278341c72e Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/a0649e2dd4a3595b5595a29d0064d047c2fae2fb Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/a0649e2dd4a3595b5595a29d0064d047c2fae2fb Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/c6c8863fb3f57700ab583d875adda04caaf2278a Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/c6c8863fb3f57700ab583d875adda04caaf2278a Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/ce15b0f1a431168f07b1cc6c9f71206a2db5c809 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/ce15b0f1a431168f07b1cc6c9f71206a2db5c809 Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/dca403bb035a565bb98ecc1dda5d30f676feda40 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/dca403bb035a565bb98ecc1dda5d30f676feda40 Types: Patch
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70e
    Added Reference https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721f
    Added Reference https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11b
    Added Reference https://git.kernel.org/stable/c/5013f8269887642cca784adc8db9b5f0b771533f
    Added Reference https://git.kernel.org/stable/c/64933ab7b04881c6c18b21ff206c12278341c72e
    Added Reference https://git.kernel.org/stable/c/a0649e2dd4a3595b5595a29d0064d047c2fae2fb
    Added Reference https://git.kernel.org/stable/c/c6c8863fb3f57700ab583d875adda04caaf2278a
    Added Reference https://git.kernel.org/stable/c/ce15b0f1a431168f07b1cc6c9f71206a2db5c809
    Added Reference https://git.kernel.org/stable/c/dca403bb035a565bb98ecc1dda5d30f676feda40
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 29, 2024

    Action Type Old Value New Value
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 21, 2024

    Action Type Old Value New Value
    Added Description 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.
    Added Reference kernel.org https://git.kernel.org/stable/c/a0649e2dd4a3595b5595a29d0064d047c2fae2fb [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/ce15b0f1a431168f07b1cc6c9f71206a2db5c809 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11b [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/c6c8863fb3f57700ab583d875adda04caaf2278a [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70e [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/5013f8269887642cca784adc8db9b5f0b771533f [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/dca403bb035a565bb98ecc1dda5d30f676feda40 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721f [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/64933ab7b04881c6c18b21ff206c12278341c72e [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact