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Vulnerability record · CVE-2026-64066 · published 19 July 2026

CVE-2026-64066: Linux kernel out-of-bounds read vulnerability

Linux · Linux Kernel

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.

9.8 CVSS 3.1 Critical EPSS 0.65% · top 50.9% CWE-125 · Out-of-bounds read
9.8CVSS 3.1 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
3 Sep 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/0256e79ce42101ad036edd4205bccca621ea0927 Patch
https://git.kernel.org/stable/c/884c4c4f35e577aba6a0593c80cbea9ca5e6e2b8 Patch
https://git.kernel.org/stable/c/8a8c0cfdf4658fc5b295b7fc87be56e0d76741f4 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-64066), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.