Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-64598

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
06/08/2026
Last modified:
17/08/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> smb/client: Fix error code in smb2_aead_req_alloc()<br /> <br /> The "*num_sgs" variable is a u32 so "ERR_PTR(*num_sgs)" doesn&amp;#39;t work.<br /> We would have to do something similar to the previous line where it&amp;#39;s<br /> cast to int and then long. However, it&amp;#39;s simpler to store the return in<br /> an int ret variable.<br /> <br /> This bug would eventually result in a crash when dereference the invalid<br /> error pointer.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH

References to Advisories, Solutions, and Tools