CVE-2023-52687

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: crypto: safexcel - Añadir manejo de errores para llamadas a dma_map_sg() La macro dma_map_sg() puede devolver 0 en caso de error. Este parche permite realizar comprobaciones en caso de fallo de la macro y garantiza la eliminación de la asignación de búferes previamente asignados con dma_unmap_sg(). Encontrado por el Centro de verificación de Linux (linuxtesting.org) con la herramienta de análisis estático SVACE.

In the Linux kernel, the following vulnerability has been resolved: crypto: safexcel - Add error handling for dma_map_sg() calls Macro dma_map_sg() may return 0 on error. This patch enables checks in case of the macro failure and ensures unmapping of previously mapped buffers with dma_unmap_sg(). Found by Linux Verification Center (linuxtesting.org) with static analysis tool SVACE.

Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel did not properly validate H2C PDU data, leading to a null pointer dereference vulnerability. A remote attacker could use this to cause a denial of service. It was discovered that the Intel Data Streaming and Intel Analytics Accelerator drivers in the Linux kernel allowed direct access to the devices for unprivileged users and virtual machines. A local attacker could use this to cause a denial of service.