Astra Linux - уязвимость в linux-5.10, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: PowerPC: Do not attempt to copy PPR for tasks with NULL pt regs. The PowerPC architecture sets PFKTHREAD and PFIOWORKER to NULL pt regs. From my arguably very brief testing, this is not commonly done for other architectures. This...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Protection against accessing NULL pt regs in bpfgettaskstack The taskptregs function can return NULL on the powerpc architecture for kernel threads. This NULL value is then used in bpfgetstack to check for the user mode...

CVE-2023-53326 powerpc: Don't try to copy PPR for task with NULL pt_regs

In the Linux kernel, the following vulnerability has been resolved: powerpc: Don't try to copy PPR for task with NULL ptregs powerpc sets up PFKTHREAD and PFIOWORKER with a NULL ptregs, which from my arguably very short checking is not commonly done for other archs. This is fine, except when...

PT-2025-38044

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A flaw exists in the Linux kernel related to handling PowerPC PPC tasks with NULL pt regs. Specifically, the kernel attempts to copy Program Page Reference PPR data for tasks configure...