In the Linux kernel, the following vulnerability has been resolved:
LoongArch: Set correct protectionmap[] for VMNONE/VM_SHARED
For 32BIT platform PAGEPROTNONE is 0, so set a VMA to be VMNONE or VMSHARED will make pages non-present, then cause Oops with kernel page fault.
Fix it by set correct protectionmap[] for VMNONE/VMSHARED, replacing _PAGEPROTNONE with PAGEPRESENT.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71228.json",
"cna_assigner": "Linux"
}