CVE-2026-72332

A flaw was found in the Linux kernel's AMD XDNA accelerator driver. A local attacker could trigger a deadlock condition during power management resume operations. This occurs when a hardware context synchronization function attempts to acquire a lock that is already held, leading to a system freeze. This vulnerability could result in a Denial of Service (DoS) for the affected system.

A moderate-impact denial-of-service flaw was found in the Linux kernel AMD XDNA accelerator driver (accel/amdxdna). A local attacker able to trigger AMD XDNA hardware context operations on a system where the device is suspended could cause a deadlock: amdxdna_hwctx_sync_debug_bo() invokes a hardware callback while holding xdna->dev_lock, and that callback path may synchronously execute amdxdna_pm_resume(), which also acquires xdna->dev_lock, resulting in a system freeze. The flaw affects only availability; there is no impact to confidentiality or integrity (Red Hat CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, severity moderate). All Red Hat Enterprise Linux and Red Hat In-Vehicle OS kernel streams (kernel, kernel-rt, and kernel-ivos-qualcomm) listed on this flaw are marked NOTAFFECTED because the vulnerable code is not present in the shipped kernels, so no Red Hat products are affected by this issue.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.