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Vulnerability record · CVE-2026-64058 · published 19 July 2026

CVE-2026-64058: Linux kernel out-of-bounds read vulnerability

Linux · Linux Kernel

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).

7.8 CVSS 3.1 High EPSS 0.18% · top 93.7% CWE-125 · Out-of-bounds read
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
14 Sep 2026Last modified by NVD

Description

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).

CVSS:3.1/AV:L/AC:L/PR:L/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/090a8aa1894b72f5b3fc18dee68d42ad45f4a2c6
https://git.kernel.org/stable/c/b8271cccdd5e43cc8d738afb8b51f6ad05b1cb4b Patch
https://git.kernel.org/stable/c/ded0c6f1606061148c202825f7e53d711f9f84cf Patch
https://git.kernel.org/stable/c/f17b9121bb99f88188ec9be2db5da1d561f4c01b Patch

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Source: NIST National Vulnerability Database (record CVE-2026-64058), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.