{"api_version":"1","generated_at":"2026-08-18T11:34:22+00:00","cve":"CVE-2026-72205","urls":{"html":"https://cve.report/CVE-2026-72205","api":"https://cve.report/api/cve/CVE-2026-72205.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-72205","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72205"},"summary":{"title":"ntfs: free volume-wide resources on fill_super failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: free volume-wide resources on fill_super failure\n\nntfs_fill_super()'s err_out_now path frees only the volume struct via\nkfree(vol), leaving several vol-owned allocations behind on every mount\nfailure:\n\n  - vol->nls_map, loaded by ntfs_init_fs_context() via\n    load_nls_default() (or replaced by an explicit nls= option in\n    ntfs_parse_param()), is never unload_nls()'d.\n\n  - vol->volume_label, allocated by load_system_files() through\n    ntfs_ucstonls() once the $Volume name attribute has been parsed, is\n    not released by load_system_files()'s own error labels nor by the\n    fill_super() inline cleanup that only runs on d_make_root()\n    failure.  Any later failure inside load_system_files() leaks it.\n\n  - vol->lcn_empty_bits_per_page was kvfree()'d in\n    unl_upcase_iput_tmp_ino_err_out_now without clearing the pointer,\n    so it could not be folded into a single common cleanup.\n\nBecause the failure paths never call ntfs_volume_free() and never reach\nthe d_make_root() inline cleanup block (it sits above the label and is\njumped over by the load_system_files() / kvmalloc failure gotos), these\nresources accumulate per failed mount attempt with no chance of\nrecovery short of unloading the module.  This is a silent leak: the\ninodes loaded prior to failure remain hashed but generic_shutdown_super()\nskips evict_inodes() when sb->s_root is unset, so no CHECK_DATA_CORRUPTION\nwarning is emitted either.\n\nMove the per-volume frees down to err_out_now and drop the\nlcn_empty_bits_per_page kvfree() from the upper label so the cleanup is\nperformed exactly once on every failure path.  Using unconditional\nkvfree() / kfree() / unload_nls() is safe because they all accept NULL\nand the upper labels that previously freed nls_map (the d_make_root()\ninline cleanup) already clear the pointer.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:21:39","updated_at":"2026-08-18 07:16:53"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a9523a7d3b24b3a6b25ec1eb668ee6618cacf05e","name":"https://git.kernel.org/stable/c/a9523a7d3b24b3a6b25ec1eb668ee6618cacf05e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/aca3d383a23cb7f3a2849c09fda3974f1838d941","name":"https://git.kernel.org/stable/c/aca3d383a23cb7f3a2849c09fda3974f1838d941","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72205","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72205","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6251f0b0de7d645e3591931ca4c11d8322c1866f aca3d383a23cb7f3a2849c09fda3974f1838d941 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6251f0b0de7d645e3591931ca4c11d8322c1866f a9523a7d3b24b3a6b25ec1eb668ee6618cacf05e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.1","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"72205","cve":"CVE-2026-72205","epss":"0.001980000","percentile":"0.099240000","score_date":"2026-08-17","updated_at":"2026-08-18 00:11:47"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/ntfs/super.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"aca3d383a23cb7f3a2849c09fda3974f1838d941","status":"affected","version":"6251f0b0de7d645e3591931ca4c11d8322c1866f","versionType":"git"},{"lessThan":"a9523a7d3b24b3a6b25ec1eb668ee6618cacf05e","status":"affected","version":"6251f0b0de7d645e3591931ca4c11d8322c1866f","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/ntfs/super.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.1"},{"lessThan":"7.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"7.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"7.1","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: free volume-wide resources on fill_super failure\n\nntfs_fill_super()'s err_out_now path frees only the volume struct via\nkfree(vol), leaving several vol-owned allocations behind on every mount\nfailure:\n\n  - vol->nls_map, loaded by ntfs_init_fs_context() via\n    load_nls_default() (or replaced by an explicit nls= option in\n    ntfs_parse_param()), is never unload_nls()'d.\n\n  - vol->volume_label, allocated by load_system_files() through\n    ntfs_ucstonls() once the $Volume name attribute has been parsed, is\n    not released by load_system_files()'s own error labels nor by the\n    fill_super() inline cleanup that only runs on d_make_root()\n    failure.  Any later failure inside load_system_files() leaks it.\n\n  - vol->lcn_empty_bits_per_page was kvfree()'d in\n    unl_upcase_iput_tmp_ino_err_out_now without clearing the pointer,\n    so it could not be folded into a single common cleanup.\n\nBecause the failure paths never call ntfs_volume_free() and never reach\nthe d_make_root() inline cleanup block (it sits above the label and is\njumped over by the load_system_files() / kvmalloc failure gotos), these\nresources accumulate per failed mount attempt with no chance of\nrecovery short of unloading the module.  This is a silent leak: the\ninodes loaded prior to failure remain hashed but generic_shutdown_super()\nskips evict_inodes() when sb->s_root is unset, so no CHECK_DATA_CORRUPTION\nwarning is emitted either.\n\nMove the per-volume frees down to err_out_now and drop the\nlcn_empty_bits_per_page kvfree() from the upper label so the cleanup is\nperformed exactly once on every failure path.  Using unconditional\nkvfree() / kfree() / unload_nls() is safe because they all accept NULL\nand the upper labels that previously freed nls_map (the d_make_root()\ninline cleanup) already clear the pointer."}],"providerMetadata":{"dateUpdated":"2026-08-18T06:56:24.809Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/aca3d383a23cb7f3a2849c09fda3974f1838d941"},{"url":"https://git.kernel.org/stable/c/a9523a7d3b24b3a6b25ec1eb668ee6618cacf05e"}],"title":"ntfs: free volume-wide resources on fill_super failure","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-72205","datePublished":"2026-08-15T05:54:01.803Z","dateReserved":"2026-08-09T03:40:39.912Z","dateUpdated":"2026-08-18T06:56:24.809Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:21:39","lastModifiedDate":"2026-08-18 07:16:53","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"72205","Ordinal":"1","Title":"ntfs: free volume-wide resources on fill_super failure","CVE":"CVE-2026-72205","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"72205","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: free volume-wide resources on fill_super failure\n\nntfs_fill_super()'s err_out_now path frees only the volume struct via\nkfree(vol), leaving several vol-owned allocations behind on every mount\nfailure:\n\n  - vol->nls_map, loaded by ntfs_init_fs_context() via\n    load_nls_default() (or replaced by an explicit nls= option in\n    ntfs_parse_param()), is never unload_nls()'d.\n\n  - vol->volume_label, allocated by load_system_files() through\n    ntfs_ucstonls() once the $Volume name attribute has been parsed, is\n    not released by load_system_files()'s own error labels nor by the\n    fill_super() inline cleanup that only runs on d_make_root()\n    failure.  Any later failure inside load_system_files() leaks it.\n\n  - vol->lcn_empty_bits_per_page was kvfree()'d in\n    unl_upcase_iput_tmp_ino_err_out_now without clearing the pointer,\n    so it could not be folded into a single common cleanup.\n\nBecause the failure paths never call ntfs_volume_free() and never reach\nthe d_make_root() inline cleanup block (it sits above the label and is\njumped over by the load_system_files() / kvmalloc failure gotos), these\nresources accumulate per failed mount attempt with no chance of\nrecovery short of unloading the module.  This is a silent leak: the\ninodes loaded prior to failure remain hashed but generic_shutdown_super()\nskips evict_inodes() when sb->s_root is unset, so no CHECK_DATA_CORRUPTION\nwarning is emitted either.\n\nMove the per-volume frees down to err_out_now and drop the\nlcn_empty_bits_per_page kvfree() from the upper label so the cleanup is\nperformed exactly once on every failure path.  Using unconditional\nkvfree() / kfree() / unload_nls() is safe because they all accept NULL\nand the upper labels that previously freed nls_map (the d_make_root()\ninline cleanup) already clear the pointer.","Type":"Description","Title":"ntfs: free volume-wide resources on fill_super failure"}]}}}