PT-2026-61375 · Linux+1 · Linux Kernel+1

CVE-2026-64058

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Published

2026-07-19

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Updated

2026-09-07

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description An issue exists in the netfs read folio() function where it fails to wait for an ongoing writeback to complete. This can lead to a situation where the system cannot trust the dirty flag or the data attached to folio->private, as the collector might clean up folio->private before the writeback flag is cleared.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

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Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-64058
USN-8593-1
USN-8603-1
USN-8618-1
USN-8663-1
USN-8664-1
USN-8728-1

Affected Products

Linux Kernel
Ubuntu