minix: Add required sanity checking to minix_check_superblock() (Linux Linux)

CVE-2026-43209
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.13 % · percentile 2 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: minix: Add required sanity checking to minix_check_superblock() The fs/minix implementation of the minix filesystem does not currently support any other value for s_log_zone_size than 0. This is also the only value supported in util-linux; see mkfs.minix.c line 511. In addition, this patch adds some sanity checking for the other minix superblock fields, and moves the minix_blocks_needed() checks for the zmap and imap also to minix_check_super_block(). This also closes a related syzbot bug report.

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a051ecf5c5b0387840dc210413ed3bc7fbdaa69c ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d791c544efd6b9c944b43cf7f502e5bcb02fb941 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 66c7c239c65341f99ae388d4d53dc9df2bcb9925 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2bb588cede1c1969e49c0a2822c8cb8b346b7682 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f57ccd4657c7f082dc47e5b9e18a883bb5f9118f ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 31fefc18096cdc5549cfa54964d90e0b3229aedc
Linux · Linuxaffected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 5.10.252 ≤ 5.10.* ; unaffected 5.15.202 ≤ 5.15.* ; unaffected 6.1.165 ≤ 6.1.* ; unaffected 6.6.128 ≤ 6.6.*

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