Astra Linux – vulnerability in linux-5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/memhotplug: Add an override for addpages in PPC With commit ffa0b64e3be5 “powerpc: Fix virtaddrvalid for 64-bit Book3E & 32-bit”, the kernel now validates the addr against the highmemory value. This results in the followi...

UBUNTU-CVE-2022-49666

In the Linux kernel, the following vulnerability has been resolved: powerpc/memhotplug: Add addpages override for PPC With commit ffa0b64e3be5 "powerpc: Fix virtaddrvalid for 64-bit Book3E & 32-bit" the kernel now validate the addr against highmemory value. This results in the below BUGON with da...

CVE-2022-49666

CVE-2022-49666 concerns the Linux kernel, specifically the powerpc/memhotplug path. The issue arises from an add_pages override for PPC, where the kernel began validating addresses against high_memory after commit ffa0b64e3be5 (powerpc: Fix virt_addr_valid() for 64-bit). This leads to a BUG_ON in...