fs/jfs: Add validity check for db_maxag and db_agpref (Linux Linux)

CVE-2023-52804
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.26 % · percentile 17 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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.

Weaknesses (CWE)

  • CWE-129 — Improper Validation of Array Index

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a0649e2dd4a3595b5595a29d0064d047c2fae2fb ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ce15b0f1a431168f07b1cc6c9f71206a2db5c809 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 32bd8f1cbcf8b663e29dd1f908ba3a129541a11b ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c6c8863fb3f57700ab583d875adda04caaf2278a ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1f74d336990f37703a8eee77153463d65b67f70e ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5013f8269887642cca784adc8db9b5f0b771533f
Linux · Linuxaffected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 4.14.331 ≤ 4.14.* ; unaffected 4.19.300 ≤ 4.19.* ; unaffected 5.4.262 ≤ 5.4.* ; unaffected 5.10.202 ≤ 5.10.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD