CVE-2025-38195
Beschrijving NL
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.
Origineel (Engels) tonen
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.