Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HAffected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 34256805720993e37adf6127371a1265aea8376a, < 55a9a7d21309bbea1dd629cf28396521a2803bb3; >= 2ca9380b12711afe95b3589bd82b59623b3c96b3, < b427d98d55217b53c88643579fbbd8a4c351a105; >= 51424fd171cee6a33f01f7c66b8eb23ac42289d4, < 985f086f281b7bbb6644851e63af1a17ffff9277; >= bd51834d1cf65a2c801295d230c220aeebf87a73, < b5c7397b7fd125203c60b59860c168ee92291272; >= bd51834d1cf65a2c801295d230c220aeebf87a73, < ee084fa96123ede8b0563a1b5a9b23adc43cd50d; b49f085cd671addbda4802d6b9382513f7dd0f30; >= 6.1.136, < 6.1.191; >= 6.6.89, < 6.6.95; >= 6.12.26, < 6.12.35; >= 6.14.5, < 6.15 |
| Linux | Linux | 6.15 |
References
- https://git.kernel.org/stable/c/55a9a7d21309bbea1dd629cf28396521a2803bb3
- https://git.kernel.org/stable/c/985f086f281b7bbb6644851e63af1a17ffff9277Patch
- https://git.kernel.org/stable/c/b427d98d55217b53c88643579fbbd8a4c351a105Patch
- https://git.kernel.org/stable/c/b5c7397b7fd125203c60b59860c168ee92291272Patch
- https://git.kernel.org/stable/c/ee084fa96123ede8b0563a1b5a9b23adc43cd50dPatch
Timeline
- Published
- Jul 4, 2025
- Last modified
- Oct 30, 2026
- NVD status
- Modified