CVE-2025-38195

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Fix panic caused by NULL-PMD in huge_pte_offset() ERROR INFO: CPU 25 Unable to handle kernel paging request at virtual address 0x0 ... Call Trace: [ ] huge_pte_offset+0x3c/0x58 [ ] hugetlb_follow_page_mask+0x74/0x438 [ ] __get_user_pages+0xe0/0x4c8 [ ] faultin_page_range+0x84/0x380 [ ] madvise_vma_behavior+0x534/0xa48 [ ] do_madvise+0x1bc/0x3e8 [ ] sys_madvise+0x24/0x38 [ ] do_syscall+0x78/0x98 [ ] handle_syscall+0xb8/0x158 In some cases, pmd may be NULL and rely on NULL as the return value for processing, so it is necessary to determine this situation here.