CVE-2023-52585

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amdgpu: corrige una posible desreferencia NULL en amdgpu_ras_query_error_status_helper() Devuelve un código de error no válido -EINVAL para una identificación de bloque no válida. Corrige lo siguiente: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1183 error amdgpu_ras_query_error_status_helper(): anteriormente asumimos que la 'información' podría ser nula (consulte la línea 1176)

A vulnerability was found in the amdgpu_ras_query_error_status_helper() function in the Linunx kernel which could lead to a possible NULL pointer dereference, causing data corruption or crashes.

Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious #VC interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to expose sensitive information or possibly execute arbitrary code in the trusted execution environment. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.