CVE-2022-48770 bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()

In the Linux kernel, the following vulnerability has been resolved: bpf: Guard against accessing NULL ptregs in bpfgettaskstack taskptregs can return NULL on powerpc for kernel threads. This is then used in bpfgetstack to check for user mode, resulting in a kernel oops. Guard against this by...

CVE-2022-48770

In the Linux kernel, the following vulnerability has been resolved: bpf: Guard against accessing NULL ptregs in bpfgettaskstack taskptregs can return NULL on powerpc for kernel threads. This is then used in bpfgetstack to check for user mode, resulting in a kernel oops. Guard against this by...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that stems from a null pointer dereference in the bpf module's bpfgettaskstack method...

GSD-2022-1000603 bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()

bpf: Guard against accessing NULL ptregs in bpfgettaskstack 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 v5.16.5 by commit...