What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-25 · updated 2026-10-15
• Weakness: CWE-476

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.

Affected products

• Linux kernel: from 6.14.1 before 6.19.7; 6.14, 7.0-rc1, 7.0-rc2, 7.0-rc3, 7.0-rc4, 7.0-rc5 (+2) — fixed in 6.19.7

How to fix

Upgrade to a fixed version: Linux kernel 6.19.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/032ca7a9059c4ba6c329e0f1b442dab54dd9c3e5
• https://git.kernel.org/stable/c/6270ee26e1edd862ea17e3eba148ca8fb2c99dc9
• https://git.kernel.org/stable/c/6b3546e3a8c664fb8b97f587fd268dc6e413d79b

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