CVE-2026-23328 accel/amdxdna: Fix NULL pointer dereference of mgmt_chann

What is CVE-2026-23328?

CVE-2026-23328 is a medium-severity vulnerability in Linux kernel, published on 25 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-476

Which versions are affected by CVE-2026-23328?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-23328?

Apply the vendor's patch.

Is CVE-2026-23328 being exploited?

There is no known exploitation of CVE-2026-23328 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2026-23328, DEBIAN-CVE-2026-23328, GHSA-j57x-5h9f-j263, UBUNTU-CVE-2026-23328.