CVE-2023-52593

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: wifi: wfx: corrige la posible desreferencia del puntero NULL en wfx_set_mfp_ap() Dado que 'ieee80211_beacon_get()' puede devolver NULL, 'wfx_set_mfp_ap()' debe verificar el valor de retorno antes de examinar los datos de skb. Así que convierta este último para que devuelva un código de error apropiado y propáguelo para que regrese también desde 'wfx_start_ap()'. Compilación probada únicamente.

In the Linux kernel, the following vulnerability has been resolved: wifi: wfx: fix possible NULL pointer dereference in wfx_set_mfp_ap() Since 'ieee80211_beacon_get()' can return NULL, 'wfx_set_mfp_ap()' should check the return value before examining skb data. So convert the latter to return an appropriate error code and propagate it to return from 'wfx_start_ap()' as well. Compile tested only.

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. 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.