CVE-2026-53023

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The converted label is later\nexposed through ntfs3_label_show() using %s, but utf16s_to_utf8s() only\nreturns the number of bytes written and does not add a trailing NUL.\n\nIf the converted label fills the entire fixed buffer,\nntfs3_label_show() can read past the end of sbi->volume.label while\nlooking for a terminator.\n\nTerminate the cached label explicitly after a successful conversion and\nclamp the exact-full case to the last byte of the buffer."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ntfs3/super.c"], "versions": [{"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "32b0686369e0afbb3549a0d93e2d8517da84cd30", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "bc7a0c34c4ca259cfddf3bc18fc5b3c6411d26ed", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "0b11fcbe80a59acdf58337d80ebb5f72201d73d6", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "54d564b762389679e2f8fb9eeb20af7e82371e1c", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "6136bbb054f7ab9f51ae99915541633b18bcef90", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "5cd0707b81cb4589f00aec5c4c1288bd0980d2a4", "status": "affected", "versionType": "git"}, {"version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "a6cd43fe9b083fa23fe1595666d5738856cb261a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ntfs3/super.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.6.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/32b0686369e0afbb3549a0d93e2d8517da84cd30"}, {"url": "https://git.kernel.org/stable/c/bc7a0c34c4ca259cfddf3bc18fc5b3c6411d26ed"}, {"url": "https://git.kernel.org/stable/c/0b11fcbe80a59acdf58337d80ebb5f72201d73d6"}, {"url": "https://git.kernel.org/stable/c/54d564b762389679e2f8fb9eeb20af7e82371e1c"}, {"url": "https://git.kernel.org/stable/c/6136bbb054f7ab9f51ae99915541633b18bcef90"}, {"url": "https://git.kernel.org/stable/c/5cd0707b81cb4589f00aec5c4c1288bd0980d2a4"}, {"url": "https://git.kernel.org/stable/c/a6cd43fe9b083fa23fe1595666d5738856cb261a"}], "title": "fs/ntfs3: terminate the cached volume label after UTF-8 conversion", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/ntfs3/super.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "32b0686369e0afbb3549a0d93e2d8517da84cd30", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "bc7a0c34c4ca259cfddf3bc18fc5b3c6411d26ed", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "0b11fcbe80a59acdf58337d80ebb5f72201d73d6", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "54d564b762389679e2f8fb9eeb20af7e82371e1c", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "6136bbb054f7ab9f51ae99915541633b18bcef90", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "5cd0707b81cb4589f00aec5c4c1288bd0980d2a4", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}, {"lessThan": "a6cd43fe9b083fa23fe1595666d5738856cb261a", "status": "affected", "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/ntfs3/super.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.15"}, {"lessThan": "5.15", "status": "unaffected", "version": "0", "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": "6.6.141", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.91", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.33", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6EDF0B07-5AB8-46F1-84C6-AAB5EF2C52B4", "versionEndExcluding": "5.15.209", "versionStartIncluding": "5.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "92385813-D91D-480D-83A1-F423D2CBB2BA", "versionEndExcluding": "6.1.175", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "97A9FFFA-22BB-4D5C-9790-5A2286E392F7", "versionEndExcluding": "6.6.141", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C918746B-DE6F-448F-A93E-A04C5481688D", "versionEndExcluding": "6.12.91", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "96D99E49-380D-43AB-BDBA-25C3AD018A9C", "versionEndExcluding": "6.18.33", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A13475D2-59BF-4716-94B5-7C1D239A2CF4", "versionEndExcluding": "7.0.10", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: terminate the cached volume label after UTF-8 conversion\n\nntfs_fill_super() loads the on-disk volume label with utf16s_to_utf8s()\nand stores the result in sbi->volume.label. The converted label is later\nexposed through ntfs3_label_show() using %s, but utf16s_to_utf8s() only\nreturns the number of bytes written and does not add a trailing NUL.\n\nIf the converted label fills the entire fixed buffer,\nntfs3_label_show() can read past the end of sbi->volume.label while\nlooking for a terminator.\n\nTerminate the cached label explicitly after a successful conversion and\nclamp the exact-full case to the last byte of the buffer."}], "id": "CVE-2026-53023", "lastModified": "2026-07-15T13:56:35.823", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-06-24T17:17:13.643", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0b11fcbe80a59acdf58337d80ebb5f72201d73d6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/32b0686369e0afbb3549a0d93e2d8517da84cd30"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/54d564b762389679e2f8fb9eeb20af7e82371e1c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5cd0707b81cb4589f00aec5c4c1288bd0980d2a4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6136bbb054f7ab9f51ae99915541633b18bcef90"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a6cd43fe9b083fa23fe1595666d5738856cb261a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bc7a0c34c4ca259cfddf3bc18fc5b3c6411d26ed"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: fs/ntfs3: terminate the cached volume label after UTF-8 conversion", "id": "2492361", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492361"}, "csaw": false, "cwe": "CWE-170", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nfs/ntfs3: terminate the cached volume label after UTF-8 conversion\nntfs_fill_super() loads the on-disk volume label with utf16s_to_utf8s()\nand stores the result in sbi->volume.label. The converted label is later\nexposed through ntfs3_label_show() using %s, but utf16s_to_utf8s() only\nreturns the number of bytes written and does not add a trailing NUL.\nIf the converted label fills the entire fixed buffer,\nntfs3_label_show() can read past the end of sbi->volume.label while\nlooking for a terminator.\nTerminate the cached label explicitly after a successful conversion and\nclamp the exact-full case to the last byte of the buffer.", "A flaw was found in the Linux kernel's NTFS3 file system driver. The `ntfs_fill_super()` function, responsible for loading the volume label, did not properly null-terminate the converted UTF-8 label. This oversight could allow the `ntfs3_label_show()` function to read beyond the allocated buffer when displaying the volume label, potentially leading to information disclosure."], "name": "CVE-2026-53023", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53023\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53023\nhttps://lore.kernel.org/linux-cve-announce/2026062452-CVE-2026-53023-5a0a@gregkh/T"]}

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