{"api_version":"1","generated_at":"2026-07-24T17:44:58+00:00","cve":"CVE-2026-63793","urls":{"html":"https://cve.report/CVE-2026-63793","api":"https://cve.report/api/cve/CVE-2026-63793.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-63793","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63793"},"summary":{"title":"ntfs: serialize volume label accesses","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: serialize volume label accesses\n\nProtect vol->volume_label with a mutex and snaphost the label before\ncopy_to_user. This prevent a use-after-free when FS_IOC_SETFSLABEL\nreplaces the vol->volume_label and FS_IOC_GETTSLABEL reads it\nconcurrently.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 12:16:51","updated_at":"2026-07-20 15:16:46"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/acd744019460bad22e43d4569a502f9c88d331ae","name":"https://git.kernel.org/stable/c/acd744019460bad22e43d4569a502f9c88d331ae","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e9e50ce4f13dc721014af622613409455c734942","name":"https://git.kernel.org/stable/c/e9e50ce4f13dc721014af622613409455c734942","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63793","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63793","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9c87959601e80b39a45250e362e6ddfec17cb0fa acd744019460bad22e43d4569a502f9c88d331ae git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9c87959601e80b39a45250e362e6ddfec17cb0fa e9e50ce4f13dc721014af622613409455c734942 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 7.1.3 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"63793","cve":"CVE-2026-63793","epss":"0.001560000","percentile":"0.051820000","score_date":"2026-07-20","updated_at":"2026-07-21 00:13:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/ntfs/file.c","fs/ntfs/super.c","fs/ntfs/volume.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"acd744019460bad22e43d4569a502f9c88d331ae","status":"affected","version":"9c87959601e80b39a45250e362e6ddfec17cb0fa","versionType":"git"},{"lessThan":"e9e50ce4f13dc721014af622613409455c734942","status":"affected","version":"9c87959601e80b39a45250e362e6ddfec17cb0fa","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/ntfs/file.c","fs/ntfs/super.c","fs/ntfs/volume.h"],"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":"7.1.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.3","versionStartIncluding":"7.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","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: serialize volume label accesses\n\nProtect vol->volume_label with a mutex and snaphost the label before\ncopy_to_user. This prevent a use-after-free when FS_IOC_SETFSLABEL\nreplaces the vol->volume_label and FS_IOC_GETTSLABEL reads it\nconcurrently."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-07-20T13:40:05.579Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/acd744019460bad22e43d4569a502f9c88d331ae"},{"url":"https://git.kernel.org/stable/c/e9e50ce4f13dc721014af622613409455c734942"}],"title":"ntfs: serialize volume label accesses","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-63793","datePublished":"2026-07-19T12:02:02.946Z","dateReserved":"2026-07-19T07:54:57.012Z","dateUpdated":"2026-07-20T13:40:05.579Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 12:16:51","lastModifiedDate":"2026-07-20 15:16:46","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"63793","Ordinal":"1","Title":"ntfs: serialize volume label accesses","CVE":"CVE-2026-63793","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"63793","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: serialize volume label accesses\n\nProtect vol->volume_label with a mutex and snaphost the label before\ncopy_to_user. This prevent a use-after-free when FS_IOC_SETFSLABEL\nreplaces the vol->volume_label and FS_IOC_GETTSLABEL reads it\nconcurrently.","Type":"Description","Title":"ntfs: serialize volume label accesses"}]}}}