---
id: CVE-2026-64068
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  netfs: Fix missing locking around retry adding new subreqs

  Fix netfs_retry_read_subrequests() and netfs_retry_write_stream() to take
  the appropriate lock when adding e…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  netfs: Fix missing locking around retry adding new subreqs

  Fix netfs_retry_read_subrequests() and netfs_retry_write_stream() to take
  the appropriate lock when adding e…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-667
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 6.10, < 7.0.11'
  - linux_kernel = 7.1
patched:
  - linux_kernel 7.0.11
published: '2026-07-19'
updated: '2026-09-07'
sourceUpdated: '2026-09-07T16:17:29.043'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-64068'
references:
  - url: 'https://git.kernel.org/stable/c/393f3f0d7353a94b1e0bc4ca89c683fe983e5fd2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/cce18c263e9623872327ba3c956012f73c1179cc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d5c9d19b0ff2f7153532ac238a5e96fed2df315c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00342
epssPercentile: 0.27777
ingestedAt: '2026-09-04T04:14:25.659Z'
---

## Overview

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

netfs: Fix missing locking around retry adding new subreqs

Fix netfs_retry_read_subrequests() and netfs_retry_write_stream() to take
the appropriate lock when adding extra subrequests into
stream->subrequests.

## Affected

- `linux_kernel >= 6.10, < 7.0.11`
- `linux_kernel = 7.1`

## Remediation

Upgrade past the affected range:

- `linux_kernel 7.0.11`