CVE Catalog

CVE-2026-72332

Low risk· EPSS 10%
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.20%

10th percentile - higher than 10% of all known CVEs

Summary

In the Linux kernel's accel/amdxdna driver, there is a vulnerability leading to a deadlock during PM resume in hwctx_sync_debug_bo(). The function invokes a hardware callback while holding xdna->dev_lock, which can cause a deadlock when the device is suspended.

Risk Assessment

The vulnerability can cause system deadlock, resulting in unresponsiveness and requiring a reboot. Risk is limited to systems with AMD XDNA accelerators.

Recommendation

Apply the kernel patch that calls amdxdna_pm_resume_get() before acquiring xdna->dev_lock in both functions. Also update the kernel to a patched version.

Other vulnerabilities in Linux kernel

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Original NVD description (English source)

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()

Vulnerability data from NVD (NIST) · CISA KEV · EPSS