CVE-2026-31435

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-31435

Key Details

CVE	CVE-2026-31435
CVSS Score / Version	8.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is required; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel
Classified as	CWE-125 (Out-of-bounds Read)

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

netfs: Fix read abandonment during retry

Under certain circumstances, all the remaining subrequests from a read

request will get abandoned during retry. The abandonment process expects

the 'subreq' variable to be set to the place to start abandonment from, but

it doesn't always have a useful value (it will be uninitialised on the

first pass through the loop and it may point to a deleted subrequest on

later passes).

Fix the first jump to "abandon:" to set subreq to the start of the first

subrequest expected to need retry (which, in this abandonment case, turned

out unexpectedly to no longer have NEED_RETRY set).

Also clear the subreq pointer after discarding superfluous retryable

subrequests to cause an oops if we do try to access it. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-31435
CVE	https://www.cve.org/CVERecord?id=CVE-2026-31435

Source

Reference

NVD

CVE