---
id: CVE-2026-64058
title: 'netfs: Fix netfs_read_folio() to wait on writeback'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  netfs: Fix netfs_read_folio() to wait on writeback

  Fix netfs_read_folio() to wait for an ongoing writeback to complete so that
  it can trust the dirty flag and whatever…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= ee4cdf7ba857a894ad1650d6ab77669cbbfa329e <
    090a8aa1894b72f5b3fc18dee68d42ad45f4a2c6
  - >-
    Linux >= ee4cdf7ba857a894ad1650d6ab77669cbbfa329e <
    f17b9121bb99f88188ec9be2db5da1d561f4c01b
  - >-
    Linux >= ee4cdf7ba857a894ad1650d6ab77669cbbfa329e <
    b8271cccdd5e43cc8d738afb8b51f6ad05b1cb4b
  - >-
    Linux >= ee4cdf7ba857a894ad1650d6ab77669cbbfa329e <
    ded0c6f1606061148c202825f7e53d711f9f84cf
  - Linux 6.12
published: '2026-07-19'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T11:58:36.477Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-64058'
references:
  - url: 'https://git.kernel.org/stable/c/090a8aa1894b72f5b3fc18dee68d42ad45f4a2c6'
  - url: 'https://git.kernel.org/stable/c/f17b9121bb99f88188ec9be2db5da1d561f4c01b'
  - url: 'https://git.kernel.org/stable/c/b8271cccdd5e43cc8d738afb8b51f6ad05b1cb4b'
  - url: 'https://git.kernel.org/stable/c/ded0c6f1606061148c202825f7e53d711f9f84cf'
tags:
  - cve.org
epss: 0.00175
epssPercentile: 0.06163
ingestedAt: '2026-09-14T15:23:07.457Z'
---

## Overview

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

netfs: Fix netfs_read_folio() to wait on writeback

Fix netfs_read_folio() to wait for an ongoing writeback to complete so that
it can trust the dirty flag and whatever is attached to folio->private
(folio->private may get cleaned up by the collector before it clears the
writeback flag).

## Affected

- `Linux >= ee4cdf7ba857a894ad1650d6ab77669cbbfa329e < 090a8aa1894b72f5b3fc18dee68d42ad45f4a2c6`
- `Linux >= ee4cdf7ba857a894ad1650d6ab77669cbbfa329e < f17b9121bb99f88188ec9be2db5da1d561f4c01b`
- `Linux >= ee4cdf7ba857a894ad1650d6ab77669cbbfa329e < b8271cccdd5e43cc8d738afb8b51f6ad05b1cb4b`
- `Linux >= ee4cdf7ba857a894ad1650d6ab77669cbbfa329e < ded0c6f1606061148c202825f7e53d711f9f84cf`
- `Linux 6.12`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.