{"id":"CVE-2025-38195","title":"LoongArch: Fix panic caused by NULL-PMD in huge_pte_offset()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Fix panic caused by NULL-PMD in huge_pte_offset()\n\nERROR INFO:\n\nCPU 25 Unable to handle kernel paging request at virtual address 0x0\n         ...\n Call Trace…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 34256805720993e37adf6127371a1265aea8376a < 55a9a7d21309bbea1dd629cf28396521a2803bb3","Linux >= 2ca9380b12711afe95b3589bd82b59623b3c96b3 < b427d98d55217b53c88643579fbbd8a4c351a105","Linux >= 51424fd171cee6a33f01f7c66b8eb23ac42289d4 < 985f086f281b7bbb6644851e63af1a17ffff9277","Linux >= bd51834d1cf65a2c801295d230c220aeebf87a73 < b5c7397b7fd125203c60b59860c168ee92291272","Linux >= bd51834d1cf65a2c801295d230c220aeebf87a73 < ee084fa96123ede8b0563a1b5a9b23adc43cd50d","Linux b49f085cd671addbda4802d6b9382513f7dd0f30","Linux >= 6.1.136 < 6.1.191","Linux >= 6.6.89 < 6.6.95","Linux >= 6.12.26 < 6.12.35","Linux >= 6.14.5 < 6.15","Linux 6.15"],"published":"2025-07-04","updated":"2026-10-30","sourceUpdated":"2026-10-30T12:21:45.698Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-38195","references":[{"url":"https://git.kernel.org/stable/c/55a9a7d21309bbea1dd629cf28396521a2803bb3"},{"url":"https://git.kernel.org/stable/c/b427d98d55217b53c88643579fbbd8a4c351a105"},{"url":"https://git.kernel.org/stable/c/985f086f281b7bbb6644851e63af1a17ffff9277"},{"url":"https://git.kernel.org/stable/c/b5c7397b7fd125203c60b59860c168ee92291272"},{"url":"https://git.kernel.org/stable/c/ee084fa96123ede8b0563a1b5a9b23adc43cd50d"}],"tags":["cve.org"],"epss":0.00182,"epssPercentile":0.07825,"ingestedAt":"2026-11-03T18:52:04.082Z","slug":"CVE-2025-38195","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Fix panic caused by NULL-PMD in huge_pte_offset()\n\nERROR INFO:\n\nCPU 25 Unable to handle kernel paging request at virtual address 0x0\n         ...\n Call Trace:\n [<900000000023c30c>] huge_pte_offset+0x3c/0x58\n [<900000000057fd4c>] hugetlb_follow_page_mask+0x74/0x438\n [<900000000051fee8>] __get_user_pages+0xe0/0x4c8\n [<9000000000522414>] faultin_page_range+0x84/0x380\n [<9000000000564e8c>] madvise_vma_behavior+0x534/0xa48\n [<900000000056689c>] do_madvise+0x1bc/0x3e8\n [<9000000000566df4>] sys_madvise+0x24/0x38\n [<90000000015b9e88>] do_syscall+0x78/0x98\n [<9000000000221f18>] handle_syscall+0xb8/0x158\n\nIn some cases, pmd may be NULL and rely on NULL as the return value for\nprocessing, so it is necessary to determine this situation here.\n\n## Affected\n\n- `Linux >= 34256805720993e37adf6127371a1265aea8376a < 55a9a7d21309bbea1dd629cf28396521a2803bb3`\n- `Linux >= 2ca9380b12711afe95b3589bd82b59623b3c96b3 < b427d98d55217b53c88643579fbbd8a4c351a105`\n- `Linux >= 51424fd171cee6a33f01f7c66b8eb23ac42289d4 < 985f086f281b7bbb6644851e63af1a17ffff9277`\n- `Linux >= bd51834d1cf65a2c801295d230c220aeebf87a73 < b5c7397b7fd125203c60b59860c168ee92291272`\n- `Linux >= bd51834d1cf65a2c801295d230c220aeebf87a73 < ee084fa96123ede8b0563a1b5a9b23adc43cd50d`\n- `Linux b49f085cd671addbda4802d6b9382513f7dd0f30`\n- `Linux >= 6.1.136 < 6.1.191`\n- `Linux >= 6.6.89 < 6.6.95`\n- `Linux >= 6.12.26 < 6.12.35`\n- `Linux >= 6.14.5 < 6.15`\n- `Linux 6.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}