01 Record

CVE-2026-31448

ext4: avoid infinite loops caused by residual data

CriticalPUBLISHEDCNA: Linux

CNA base score9.4 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

View raw JSON

02 Description

ext4: avoid infinite loops caused by residual data

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.44% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 36.8% of scored records. A rank, not a probability.
NVD base score: 9.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-07-14.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-04-22 13:53Z4 MO AGO

Last updated

2026-08-05 12:22Z1 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.4)

CNA CVSS vector

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

Weaknesses

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base
CWE-772Missing Release of Resource after Effective LifetimeBase

Data version

5.2

Document digest

471291a2539410719d2b8899e0aa01f58f7da3dc26ad7995e708012b8cfa012a

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux315054f023d28ee64f308adf8b5737831541776b to < c66545e83a802c3851d9be27a41c0479dd29ff0c, 315054f023d28ee64f308adf8b5737831541776b to < ecc50bfca9b5c2ee6aeef998181689b80477367b, 315054f023d28ee64f308adf8b5737831541776b to < 3a7667595bcad84da53fc156a418e110267c3412, 315054f023d28ee64f308adf8b5737831541776b to < 416c86f30f91b4fb2642ef6b102596ca898f41a5, 315054f023d28ee64f308adf8b5737831541776b to < 64f425b06b3bea9abc8977fd3982779b3ad070c9, 315054f023d28ee64f308adf8b5737831541776b to < 5422fe71d26d42af6c454ca9527faaad4e677d6c, 2.6.22—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/c66545e83a802c3851d9be27a41c0479dd29ff0c
git.kernel.orghttps://git.kernel.org/stable/c/ecc50bfca9b5c2ee6aeef998181689b80477367b
git.kernel.orghttps://git.kernel.org/stable/c/3a7667595bcad84da53fc156a418e110267c3412
git.kernel.orghttps://git.kernel.org/stable/c/416c86f30f91b4fb2642ef6b102596ca898f41a5
git.kernel.orghttps://git.kernel.org/stable/c/64f425b06b3bea9abc8977fd3982779b3ad070c9
git.kernel.orghttps://git.kernel.org/stable/c/5422fe71d26d42af6c454ca9527faaad4e677d6c
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html

01 Record index

CVE-2026-31448

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-31448

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References