{"id":"CVE-2026-53023","state":"PUBLISHED","title":"fs/ntfs3: terminate the cached volume label after UTF-8 conversion","description":"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.","publishedAt":"2026-06-24T16:29:32.440Z","updatedAt":"2026-06-24T16:29:32.440Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"32b0686369e0afbb3549a0d93e2d8517da84cd30","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"bc7a0c34c4ca259cfddf3bc18fc5b3c6411d26ed","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"0b11fcbe80a59acdf58337d80ebb5f72201d73d6","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"54d564b762389679e2f8fb9eeb20af7e82371e1c","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"6136bbb054f7ab9f51ae99915541633b18bcef90","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"5cd0707b81cb4589f00aec5c4c1288bd0980d2a4","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"a6cd43fe9b083fa23fe1595666d5738856cb261a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ntfs3/super.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ntfs3/super.c"]}],"references":["https://git.kernel.org/stable/c/32b0686369e0afbb3549a0d93e2d8517da84cd30","https://git.kernel.org/stable/c/bc7a0c34c4ca259cfddf3bc18fc5b3c6411d26ed","https://git.kernel.org/stable/c/0b11fcbe80a59acdf58337d80ebb5f72201d73d6","https://git.kernel.org/stable/c/54d564b762389679e2f8fb9eeb20af7e82371e1c","https://git.kernel.org/stable/c/6136bbb054f7ab9f51ae99915541633b18bcef90","https://git.kernel.org/stable/c/5cd0707b81cb4589f00aec5c4c1288bd0980d2a4","https://git.kernel.org/stable/c/a6cd43fe9b083fa23fe1595666d5738856cb261a"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53023.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53023","state":"PUBLISHED","datePublished":"2026-06-24T16:29:32.440Z","dateUpdated":"2026-06-24T16:29:32.440Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.379Z"},"containers":{"cna":{"title":"fs/ntfs3: terminate the cached volume label after UTF-8 conversion","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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"32b0686369e0afbb3549a0d93e2d8517da84cd30","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"bc7a0c34c4ca259cfddf3bc18fc5b3c6411d26ed","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"0b11fcbe80a59acdf58337d80ebb5f72201d73d6","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"54d564b762389679e2f8fb9eeb20af7e82371e1c","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"6136bbb054f7ab9f51ae99915541633b18bcef90","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"5cd0707b81cb4589f00aec5c4c1288bd0980d2a4","versionType":"git"},{"version":"82cae269cfa953032fbb8980a7d554d60fb00b17","status":"affected","lessThan":"a6cd43fe9b083fa23fe1595666d5738856cb261a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ntfs3/super.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ntfs3/super.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-24T16:29:32.440Z"},"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"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}