{"api_version":"1","generated_at":"2026-07-20T14:43:04+00:00","cve":"CVE-2026-64185","urls":{"html":"https://cve.report/CVE-2026-64185","api":"https://cve.report/api/cve/CVE-2026-64185.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64185","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64185"},"summary":{"title":"sysfs: don't remove existing directory on update failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsysfs: don't remove existing directory on update failure\n\nWhen sysfs_update_group() is called for a named group and create_files()\nfails (e.g. -ENOMEM), internal_create_group() calls kernfs_remove(kn) on\nthe group directory.  In the update path, kn was obtained via\nkernfs_find_and_get() and refers to a directory that already existed\nbefore this call.  Removing it silently destroys a sysfs group that the\ncaller did not create.\n\nOnly remove the directory if we created it ourselves.  On update failure\nthe directory remains as it is left empty by remove_files() inside\ncreate_files(), but can be repopulated by a retry.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:18:00","updated_at":"2026-07-19 16:18:00"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/237557b8a81ab948e8332f7c0058e758f081c0a3","name":"https://git.kernel.org/stable/c/237557b8a81ab948e8332f7c0058e758f081c0a3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/708f6926f61f71e09b5e9fd668b9882ccd46e69f","name":"https://git.kernel.org/stable/c/708f6926f61f71e09b5e9fd668b9882ccd46e69f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/48fa96538bd2868034d33429e4565fda384d0736","name":"https://git.kernel.org/stable/c/48fa96538bd2868034d33429e4565fda384d0736","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ccadd32cc1263802a5969c9efe0e96225450428c","name":"https://git.kernel.org/stable/c/ccadd32cc1263802a5969c9efe0e96225450428c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/31527d80234caf83dc96ad478645e57df9de4472","name":"https://git.kernel.org/stable/c/31527d80234caf83dc96ad478645e57df9de4472","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/57b285e0368290aa55f79ba11419b96d0ebdb418","name":"https://git.kernel.org/stable/c/57b285e0368290aa55f79ba11419b96d0ebdb418","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a","name":"https://git.kernel.org/stable/c/14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c5e125c828b701afaf7493b42a14aa89362ff36d","name":"https://git.kernel.org/stable/c/c5e125c828b701afaf7493b42a14aa89362ff36d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64185","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64185","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 c5e125c828b701afaf7493b42a14aa89362ff36d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 ccadd32cc1263802a5969c9efe0e96225450428c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 31527d80234caf83dc96ad478645e57df9de4472 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.209 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.175 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.142 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.92 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.34 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.11 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/sysfs/group.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c5e125c828b701afaf7493b42a14aa89362ff36d","status":"affected","version":"c855cf2759d27142f771173d9fd8e7fdf9cf5138","versionType":"git"},{"lessThan":"ccadd32cc1263802a5969c9efe0e96225450428c","status":"affected","version":"c855cf2759d27142f771173d9fd8e7fdf9cf5138","versionType":"git"},{"lessThan":"14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a","status":"affected","version":"c855cf2759d27142f771173d9fd8e7fdf9cf5138","versionType":"git"},{"lessThan":"31527d80234caf83dc96ad478645e57df9de4472","status":"affected","version":"c855cf2759d27142f771173d9fd8e7fdf9cf5138","versionType":"git"},{"lessThan":"57b285e0368290aa55f79ba11419b96d0ebdb418","status":"affected","version":"c855cf2759d27142f771173d9fd8e7fdf9cf5138","versionType":"git"},{"lessThan":"48fa96538bd2868034d33429e4565fda384d0736","status":"affected","version":"c855cf2759d27142f771173d9fd8e7fdf9cf5138","versionType":"git"},{"lessThan":"708f6926f61f71e09b5e9fd668b9882ccd46e69f","status":"affected","version":"c855cf2759d27142f771173d9fd8e7fdf9cf5138","versionType":"git"},{"lessThan":"237557b8a81ab948e8332f7c0058e758f081c0a3","status":"affected","version":"c855cf2759d27142f771173d9fd8e7fdf9cf5138","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/sysfs/group.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.142","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.258","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.142","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.92","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.34","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.11","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"4.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsysfs: don't remove existing directory on update failure\n\nWhen sysfs_update_group() is called for a named group and create_files()\nfails (e.g. -ENOMEM), internal_create_group() calls kernfs_remove(kn) on\nthe group directory.  In the update path, kn was obtained via\nkernfs_find_and_get() and refers to a directory that already existed\nbefore this call.  Removing it silently destroys a sysfs group that the\ncaller did not create.\n\nOnly remove the directory if we created it ourselves.  On update failure\nthe directory remains as it is left empty by remove_files() inside\ncreate_files(), but can be repopulated by a retry."}],"providerMetadata":{"dateUpdated":"2026-07-19T15:41:07.340Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/c5e125c828b701afaf7493b42a14aa89362ff36d"},{"url":"https://git.kernel.org/stable/c/ccadd32cc1263802a5969c9efe0e96225450428c"},{"url":"https://git.kernel.org/stable/c/14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a"},{"url":"https://git.kernel.org/stable/c/31527d80234caf83dc96ad478645e57df9de4472"},{"url":"https://git.kernel.org/stable/c/57b285e0368290aa55f79ba11419b96d0ebdb418"},{"url":"https://git.kernel.org/stable/c/48fa96538bd2868034d33429e4565fda384d0736"},{"url":"https://git.kernel.org/stable/c/708f6926f61f71e09b5e9fd668b9882ccd46e69f"},{"url":"https://git.kernel.org/stable/c/237557b8a81ab948e8332f7c0058e758f081c0a3"}],"title":"sysfs: don't remove existing directory on update failure","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64185","datePublished":"2026-07-19T15:41:07.340Z","dateReserved":"2026-07-19T07:54:57.039Z","dateUpdated":"2026-07-19T15:41:07.340Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:18:00","lastModifiedDate":"2026-07-19 16:18:00","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64185","Ordinal":"1","Title":"sysfs: don't remove existing directory on update failure","CVE":"CVE-2026-64185","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64185","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nsysfs: don't remove existing directory on update failure\n\nWhen sysfs_update_group() is called for a named group and create_files()\nfails (e.g. -ENOMEM), internal_create_group() calls kernfs_remove(kn) on\nthe group directory.  In the update path, kn was obtained via\nkernfs_find_and_get() and refers to a directory that already existed\nbefore this call.  Removing it silently destroys a sysfs group that the\ncaller did not create.\n\nOnly remove the directory if we created it ourselves.  On update failure\nthe directory remains as it is left empty by remove_files() inside\ncreate_files(), but can be repopulated by a retry.","Type":"Description","Title":"sysfs: don't remove existing directory on update failure"}]}}}