CVE-2024-26593

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i2c: i801: Reparar transacciones de llamada de proceso de bloque Según las hojas de datos de Intel, el software debe restablecer el índice del búfer de bloque dos veces para transacciones de llamada de proceso de bloque: una vez antes de escribir los datos salientes en el búfer , y una vez más antes de leer los datos entrantes del búfer. Actualmente, al controlador le falta el segundo reinicio, lo que provoca que se lea la parte incorrecta del búfer de bloque.

In the Linux kernel, the following vulnerability has been resolved: i2c: i801: Fix block process call transactions According to the Intel datasheets, software must reset the block buffer index twice for block process call transactions: once before writing the outgoing data to the buffer, and once again before reading the incoming data from the buffer. The driver is currently missing the second reset, causing the wrong portion of the block buffer to be read.

It was discovered that the Open vSwitch implementation in the Linux kernel could overflow its stack during recursive action operations under certain conditions. A local attacker could use this to cause a denial of service. Sander Wiebing, Alvise de Faveri Tron, Herbert Bos, and Cristiano Giuffrida discovered that the Linux kernel mitigations for the initial Branch History Injection vulnerability were insufficient for Intel processors. A local attacker could potentially use this to expose sensitive information.