CVE-2026-72332
Received Received - Intake

Deadlock in Linux Kernel AMDXDNA Driver

Publication date: 2026-08-15

Last updated on: 2026-08-15

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Prevent PM resume deadlock in hwctx_sync_debug_bo() amdxdna_hwctx_sync_debug_bo() invokes the hardware hwctx_sync_debug_bo() callback while holding xdna->dev_lock. The callback may call amdxdna_cmd_submit(), which in turn calls amdxdna_pm_resume_get(). If the device is suspended, amdxdna_pm_resume_get() may synchronously execute amdxdna_pm_resume(), which also acquires xdna->dev_lock, resulting in a deadlock. Avoid the deadlock by calling amdxdna_pm_resume_get() before holding xdna->dev_lock in both amdxdna_hwctx_sync_debug_bo() and amdxdna_drm_config_hwctx_ioctl()

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Meta Information

Published
2026-08-15
Last Modified
2026-08-15
Generated
2026-08-15
AI Q&A
2026-08-15
EPSS Evaluated
N/A
NVD
CVE-2026-72332
EUVD
EUVD-2026-59231

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
amd amdxdna *

Helpful Resources

Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a deadlock vulnerability in the Linux kernel's AMD XDNA accelerator driver. It occurs when the function amdxdna_hwctx_sync_debug_bo() holds a lock while calling a hardware callback that may trigger a power management resume operation. The resume operation also tries to acquire the same lock, causing a deadlock.

Detection Guidance

This vulnerability is specific to the Linux kernel's amdxdna driver and may not have direct network detection methods. Check kernel logs for deadlock errors or system hangs related to amdxdna. Commands like dmesg | grep amdxdna or journalctl -k | grep amdxdna may help identify issues.

Impact Analysis

This vulnerability can cause system hangs or freezes when specific AMD XDNA accelerator operations are performed. It may lead to unresponsive applications or require a system reboot to recover.

Mitigation Strategies

Update the Linux kernel to a patched version that resolves this issue. Avoid suspending the device while the amdxdna driver is in use. Monitor system logs for deadlocks or hangs.

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