SB2026081643 - Deadlock in Linux kernel accel amdxdna driver

Description

This security bulletin contains information about 1 vulnerability.

1) Deadlock (CVE-ID: CVE-2026-72332)

CWE-ID: CWE-833 - Deadlock

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a deadlock condition in amdxdna_hwctx_sync_debug_bo() and amdxdna_drm_config_hwctx_ioctl() when invoking hardware context operations while the device is suspended. A local user can trigger the affected ioctl or debug buffer synchronization path to cause a denial of service.

The issue occurs when a power management resume operation is triggered while the device lock is already held.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/2d8eeb0578ae3aadf112fd3e1997e58178f75979
• https://git.kernel.org/stable/c/e35c9cf5512814fb04f369f2eada64f0a7164609