ext4: reject mount if bigalloc with s_first_data_block != 0 (Linux Linux)

CVE-2026-31447
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.14 % · percentile 4 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Scores

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

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 281b59959707dfae03ce038cdf231bf4904e170c < 5ad6d994255e27a3254079dfb50ca861fc31f2d0 ; affected 281b59959707dfae03ce038cdf231bf4904e170c < 3a926957cc95899ef88529710836edadc03c71a1 ; affected 281b59959707dfae03ce038cdf231bf4904e170c < 7b58c110b4e1f028eb38eec9ed3555e9be81c8b0 ; affected 281b59959707dfae03ce038cdf231bf4904e170c < b77de3fceafbb39f30e4ff5dc986f863d5456417 ; affected 281b59959707dfae03ce038cdf231bf4904e170c < d787d3ae96648dc14a3b7ca8fde817177e82c1c7 ; affected 281b59959707dfae03ce038cdf231bf4904e170c < ad1f6d608f33f59d21a3d025615d6786a6443998
Linux · Linuxaffected 3.2 ; unaffected 0 < 3.2 ; unaffected 5.10.253 ≤ 5.10.* ; unaffected 5.15.203 ≤ 5.15.* ; unaffected 6.1.168 ≤ 6.1.* ; unaffected 6.6.131 ≤ 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