CVE-2022-49196 powerpc/pseries: Fix use after free in remove_phb_dynamic()

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix use after free in removephbdynamic In removephbdynamic we use &phb-ioresource, after we've called deviceunregister&hostbridge-dev. But the unregister may have freed phb, because pcibiosfreecontrollerdeferred ...

CVE-2022-49196

The CVE-2022-49196 issue affects the Linux kernel (powerpc/pseries) and is a use-after-free in remove_phb_dynamic() where phb may be freed after device_unregister() frees host_bridge, potentially crashing with slub_debug/page_poison. The workaround described is to hold a reference to host_bridge-...

GSD-2022-1001828 powerpc/pseries: Fix use after free in remove_phb_dynamic()

powerpc/pseries: Fix use after free in removephbdynamic This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.33 by commit...

GSD-2022-1001193 powerpc/pseries: Fix use after free in remove_phb_dynamic()

powerpc/pseries: Fix use after free in removephbdynamic This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.17.2 by commit...