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CVE-2026-31447

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CVE-2026-31447

Published: Apr 22, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

7.8

HIGH

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: reject mount if bigalloc with s_first_data_block != 0 bigalloc with s_first_data_block != 0 is not supported, reject mounting it.

VendorProductVersions

Linux

Linux

affected
281b59959707dfae03ce038cdf231bf4904e170c - < 5ad6d994255e27a3254079dfb50ca861fc31f2d0
affected
281b59959707dfae03ce038cdf231bf4904e170c - < 3a926957cc95899ef88529710836edadc03c71a1
affected
281b59959707dfae03ce038cdf231bf4904e170c - < 7b58c110b4e1f028eb38eec9ed3555e9be81c8b0
affected
281b59959707dfae03ce038cdf231bf4904e170c - < b77de3fceafbb39f30e4ff5dc986f863d5456417
affected
281b59959707dfae03ce038cdf231bf4904e170c - < d787d3ae96648dc14a3b7ca8fde817177e82c1c7

+3 more versions

Linux

Linux

affected
3.2
unaffected
0 - < 3.2
unaffected
5.10.253 - <= 5.10.*
unaffected
5.15.203 - <= 5.15.*
unaffected
6.1.168 - <= 6.1.*

+5 more versions

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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