CVE-2024-35800

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: efi: arreglado el pánico en el kernel kdump. Compruebe si get_next_variable() es realmente un puntero válido antes de llamarlo. En el kernel kdump, este método está configurado en NULL, lo que provoca pánico durante el arranque del kernel kexec-ed. Probado con firmware QEMU y OVMF.

In the Linux kernel, the following vulnerability has been resolved: efi: fix panic in kdump kernel Check if get_next_variable() is actually valid pointer before calling it. In kdump kernel this method is set to NULL that causes panic during the kexec-ed kernel boot. Tested with QEMU and OVMF firmware.

Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could possibly trigger this vulnerability to cause a denial of service. Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service.