Impact
The Linux kernel's AMDGPU SDMA 7.0 driver included a BUG_ON that would trigger a kernel panic when specific internal conditions were met. The patch changes the check to a WARN_ON, preventing the crash. This change indicates that the earlier code path could be abused to cause a denial of service, allowing an attacker to destabilize the system by provoking a kernel panic.
Affected Systems
All Linux kernel releases that ship with the drm/amdgpu/sdma7.0 driver before the application of commit 9723a8b are affected. The issue resides within the kernel's AMDGPU subsystem, covering all vendors that distribute the kernel with this driver compiled in.
Risk and Exploitability
The EPSS value is not available and the vulnerability is not listed in CISA’s KEV catalog, suggesting a low to moderate probability of exploitation. The CVSS score is not supplied, but the potential impact of a kernel panic points to a high severity. A likely attack vector would involve an attacker gaining local privilege or manipulating a user‑space application to trigger the erroneous condition in the GPU driver. The mitigation requires updating to a kernel that includes the patch or applying the kernel change manually.
OpenCVE Enrichment