Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.19.6/7.0-rc2. Affected is the function aie2_send_mgmt_msg_wait of the component amdxdna. This manipulation causes null pointer dereference. This vulnerability is tracked as CVE-2026-23328. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.19.6/7.0-rc2. It has been declared as critical. Affected by this vulnerability is the function aie2_send_mgmt_msg_wait of the component amdxdna. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix NULL pointer dereference of mgmt_chann mgmt_chann may be set to NULL if the firmware returns an unexpected error in aie2_send_mgmt_msg_wait(). This can later lead to a NULL pointer dereference in aie2_hw_stop(). Fix this by introducing a dedicated helper to destroy mgmt_chann and by adding proper NULL checks before accessing it.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2026-23328 since 01/13/2026. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 304098 (Linux Distros Unpatched Vulnerability : CVE-2026-23328), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.19.7 or 7.0-rc3 eliminates this vulnerability. Applying the patch 032ca7a9059c4ba6c329e0f1b442dab54dd9c3e5/6270ee26e1edd862ea17e3eba148ca8fb2c99dc9 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (304098). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 6.19.0
• 6.19.1
• 6.19.2
• 6.19.3
• 6.19.4
• 6.19.5
• 6.19.6
• 7.0-rc1
• 7.0-rc2

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Discussion