{"identifier":"CVE-2025-71312","cve":{"id":"CVE-2025-71312","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()\n\nIn ntfs_fill_super(), the fc->fs_private pointer is set to NULL without\nfirst freeing the memory it points to. This causes the subsequent call to\nntfs_fs_free() to skip freeing the ntfs_mount_options structure.\n\nThis results in a kmemleak report:\n\n  unreferenced object 0xff1100015378b800 (size 32):\n    comm \"mount\", pid 582, jiffies 4294890685\n    hex dump (first 32 bytes):\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n      00 00 00 00 00 00 00 00 ed ff ed ff 00 04 00 00  ................\n    backtrace (crc ed541d8c):\n      __kmalloc_cache_noprof+0x424/0x5a0\n      __ntfs_init_fs_context+0x47/0x590\n      alloc_fs_context+0x5d8/0x960\n      __x64_sys_fsopen+0xb1/0x190\n      do_syscall_64+0x50/0x1f0\n      entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThis issue can be reproduced using the following commands:\n        fallocate -l 100M test.file\n        mount test.file /tmp/test\n\nSince sbi->options is duplicated from fc->fs_private and does not\ndirectly use the memory allocated for fs_private, it is unnecessary to\nset fc->fs_private to NULL.\n\nAdditionally, this patch simplifies the code by utilizing the helper\nfunction put_mount_options() instead of open-coding the cleanup logic.","published":"2026-05-27T14:16:43.763000+00:00","modified":"2026-10-26T16:17:09.720000+00:00","status":"Modified","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvss_version":"3.1","affected":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"6.19.4"}],"weaknesses":["CWE-401"],"references":[{"url":"https://git.kernel.org/stable/c/d977b979081ef2585a15453f309a6311c95ede02","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dac871d833b09495198dcac81d2ebaa8db11acbc","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f7edab0cee03a1cbe0e55a7bcab8d2d8b6b74278","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}],"kev":null,"kev_checked":true,"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.4","matchCriteriaId":"672A3E79-EC03-479D-8503-361DFBDC8092"}]}]}],"source":"nvd","retrieved_at":"2026-10-28T10:25:17.078116+00:00","exploited":false,"kev_stale":false,"products":["linux / linux kernel"],"priority":{"label":"Assess exposure and vendor guidance","reasons":["No higher-priority signal is available in the current stored evidence."]},"epss":{"probability":0.00154,"percentile":0.04477,"date":"2026-10-29","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"git.kernel.org","source_url":"https://git.kernel.org/stable/c/d977b979081ef2585a15453f309a6311c95ede02","investigate_url":"https://investigate.aeglixmind.com/#git.kernel.org"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2025-71312","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2025-71312","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2025-71312","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}