PT-2026-68431 · Linux+1 · Linux Kernel+1

CVE-2026-64598

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Published

2026-08-06

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Updated

2026-09-07

CVSS v3.1

8.8

High

VectorAV:N/AC:L/PR:N/UI:R/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 smb2 aead req alloc() function where the *num sgs variable, defined as a u32, is incorrectly handled when using ERR PTR(). This improper handling of the error code can lead to a system crash when the invalid error pointer is dereferenced.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Related Identifiers

CVE-2026-64598
OPENSUSE-SU-2026:11476-1
USN-8726-1
USN-8727-1
USN-8728-1

Affected Products

Linux Kernel
Ubuntu