CVE-2026-64066 (GCVE-0-2026-64066)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:39 – Updated: 2026-07-20 13:42
VLAI
Title
netfs: Fix netfs_read_to_pagecache() to pause on subreq failure
Summary
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfs_read_to_pagecache() to pause on subreq failure Fix netfs_read_to_pagecache() so that it pauses the generation of new subrequests if an already-issued subrequest fails.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ee4cdf7ba857a894ad1650d6ab77669cbbfa329e , < 884c4c4f35e577aba6a0593c80cbea9ca5e6e2b8 (git)
Affected: ee4cdf7ba857a894ad1650d6ab77669cbbfa329e , < 0256e79ce42101ad036edd4205bccca621ea0927 (git)
Affected: ee4cdf7ba857a894ad1650d6ab77669cbbfa329e , < 8a8c0cfdf4658fc5b295b7fc87be56e0d76741f4 (git)
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Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.18.34 , ≤ 6.18.* (semver)
Unaffected: 7.0.11 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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      "title": "kernel: netfs: Fix netfs_read_to_pagecache() to pause on subreq failure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64066.json",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.