{"id":"CVE-2025-38195","state":"PUBLISHED","title":"LoongArch: Fix panic caused by NULL-PMD in huge_pte_offset()","description":"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:\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.","publishedAt":"2025-07-04T13:37:18.558Z","updatedAt":"2026-10-30T12:21:45.698Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"34256805720993e37adf6127371a1265aea8376a","status":"affected","lessThan":"55a9a7d21309bbea1dd629cf28396521a2803bb3","versionType":"git"},{"version":"2ca9380b12711afe95b3589bd82b59623b3c96b3","status":"affected","lessThan":"b427d98d55217b53c88643579fbbd8a4c351a105","versionType":"git"},{"version":"51424fd171cee6a33f01f7c66b8eb23ac42289d4","status":"affected","lessThan":"985f086f281b7bbb6644851e63af1a17ffff9277","versionType":"git"},{"version":"bd51834d1cf65a2c801295d230c220aeebf87a73","status":"affected","lessThan":"b5c7397b7fd125203c60b59860c168ee92291272","versionType":"git"},{"version":"bd51834d1cf65a2c801295d230c220aeebf87a73","status":"affected","lessThan":"ee084fa96123ede8b0563a1b5a9b23adc43cd50d","versionType":"git"},{"version":"b49f085cd671addbda4802d6b9382513f7dd0f30","status":"affected","versionType":"git"},{"version":"6.1.136","status":"affected","lessThan":"6.1.191","versionType":"semver"},{"version":"6.6.89","status":"affected","lessThan":"6.6.95","versionType":"semver"},{"version":"6.12.26","status":"affected","lessThan":"6.12.35","versionType":"semver"},{"version":"6.14.5","status":"affected","lessThan":"6.15","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/mm/hugetlbpage.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.95","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.35","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.4","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/mm/hugetlbpage.c"]}],"references":["https://git.kernel.org/stable/c/55a9a7d21309bbea1dd629cf28396521a2803bb3","https://git.kernel.org/stable/c/b427d98d55217b53c88643579fbbd8a4c351a105","https://git.kernel.org/stable/c/985f086f281b7bbb6644851e63af1a17ffff9277","https://git.kernel.org/stable/c/b5c7397b7fd125203c60b59860c168ee92291272","https://git.kernel.org/stable/c/ee084fa96123ede8b0563a1b5a9b23adc43cd50d"],"weaknesses":[],"ingestedAt":"2026-10-30T12:38:04.623Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/38xxx/CVE-2025-38195.json","commit":"db8103c5921aac81d5d90efcf3745980dafabf49","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38195","state":"PUBLISHED","datePublished":"2025-07-04T13:37:18.558Z","dateUpdated":"2026-10-30T12:21:45.698Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:23.993Z"},"containers":{"cna":{"title":"LoongArch: Fix panic caused by NULL-PMD in huge_pte_offset()","descriptions":[{"lang":"en","value":"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:\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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"34256805720993e37adf6127371a1265aea8376a","status":"affected","lessThan":"55a9a7d21309bbea1dd629cf28396521a2803bb3","versionType":"git"},{"version":"2ca9380b12711afe95b3589bd82b59623b3c96b3","status":"affected","lessThan":"b427d98d55217b53c88643579fbbd8a4c351a105","versionType":"git"},{"version":"51424fd171cee6a33f01f7c66b8eb23ac42289d4","status":"affected","lessThan":"985f086f281b7bbb6644851e63af1a17ffff9277","versionType":"git"},{"version":"bd51834d1cf65a2c801295d230c220aeebf87a73","status":"affected","lessThan":"b5c7397b7fd125203c60b59860c168ee92291272","versionType":"git"},{"version":"bd51834d1cf65a2c801295d230c220aeebf87a73","status":"affected","lessThan":"ee084fa96123ede8b0563a1b5a9b23adc43cd50d","versionType":"git"},{"version":"b49f085cd671addbda4802d6b9382513f7dd0f30","status":"affected","versionType":"git"},{"version":"6.1.136","status":"affected","lessThan":"6.1.191","versionType":"semver"},{"version":"6.6.89","status":"affected","lessThan":"6.6.95","versionType":"semver"},{"version":"6.12.26","status":"affected","lessThan":"6.12.35","versionType":"semver"},{"version":"6.14.5","status":"affected","lessThan":"6.15","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/mm/hugetlbpage.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.95","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.35","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.4","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/mm/hugetlbpage.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:21:45.698Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.136","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.89","versionEndExcluding":"6.6.95"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.26","versionEndExcluding":"6.12.35"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.15.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14.5"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}