CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-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:
[<900000000023c30c>] huge_pte_offset+0x3c/0x58
[<900000000057fd4c>] hugetlb_follow_page_mask+0x74/0x438
[<900000000051fee8>] __get_user_pages+0xe0/0x4c8
[<9000000000522414>] faultin_page_range+0x84/0x380
[<9000000000564e8c>] madvise_vma_behavior+0x534/0xa48
[<900000000056689c>] do_madvise+0x1bc/0x3e8
[<9000000000566df4>] sys_madvise+0x24/0x38
[<90000000015b9e88>] do_syscall+0x78/0x98
[<9000000000221f18>] 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.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-30)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
References
- https://git.kernel.org/stable/c/55a9a7d21309bbea1dd629cf28396521a2803bb3
- https://git.kernel.org/stable/c/985f086f281b7bbb6644851e63af1a17ffff9277
- https://git.kernel.org/stable/c/b427d98d55217b53c88643579fbbd8a4c351a105
- https://git.kernel.org/stable/c/b5c7397b7fd125203c60b59860c168ee92291272
- https://git.kernel.org/stable/c/ee084fa96123ede8b0563a1b5a9b23adc43cd50d