// For flags

CVE-2023-52804

fs/jfs: Add validity check for db_maxag and db_agpref

Severity Score

5.3
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: fs/jfs: agregue verificación de validez para db_maxag y db_agpref. Tanto db_maxag como db_agpref se utilizan como índice de la matriz db_agfree, pero actualmente no hay verificación de validez para db_maxag y db_agpref, lo cual puede dar lugar a errores. El siguiente es un error relacionado reportado por Syzbot: UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:639:20 el índice 7936 está fuera de rango para el tipo 'atomic_t[128]' Agregue verificando que el Los valores de db_maxag y db_agpref son índices válidos para la matriz db_agfree.

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.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-05-21 CVE Reserved
  • 2024-05-21 CVE Published
  • 2024-12-19 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 4.14.331
Search vendor "Linux" for product "Linux Kernel" and version " < 4.14.331"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 4.19.300
Search vendor "Linux" for product "Linux Kernel" and version " < 4.19.300"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 5.4.262
Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.262"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 5.10.202
Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.202"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 5.15.140
Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.140"
en
Affected
Linux
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Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.1.64
Search vendor "Linux" for product "Linux Kernel" and version " < 6.1.64"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.5.13
Search vendor "Linux" for product "Linux Kernel" and version " < 6.5.13"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.6.3
Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.3"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.7
Search vendor "Linux" for product "Linux Kernel" and version " < 6.7"
en
Affected