AUGUST 4, 2026
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Case File

CVE-2023-52804

HIGH · CVSS 7.8 EPSS 0.26%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2024-05-21 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.8. It affects Linux.

CVE
CVE-2023-52804
Severity
HIGH
CVSS
7.8
EPSS
0.26%
Linux

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)