{"api_version":"1","generated_at":"2026-09-21T16:47:54+00:00","cve":"CVE-2026-93120","urls":{"html":"https://cve.report/CVE-2026-93120","api":"https://cve.report/api/cve/CVE-2026-93120.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-93120","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-93120"},"summary":{"title":"usb: gadget: configfs: fix out-of-bounds read of qw_sign","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: configfs: fix out-of-bounds read of qw_sign\n\nos_desc_qw_sign_show() passes OS_STRING_QW_SIGN_LEN as the input\nlength to utf16s_to_utf8s(), but that argument counts UTF-16 code\nunits while OS_STRING_QW_SIGN_LEN (14) is the byte size of qw_sign[].\nThe array holds only OS_STRING_QW_SIGN_LEN / 2 (7) code units, so the\nconversion reads up to 7 units (14 bytes) past the end of qw_sign[]\ninto the following members of struct gadget_info when the stored\nsignature fills the array without a NUL terminator, exposing those\nbytes through the configfs attribute.\n\nThe store path halves the count for its input bound but passes the\nfull byte count as the utf8s_to_utf16s() output limit; use the\ndestination code-unit count in both directions.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:18:06","updated_at":"2026-09-17 17:18:06"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/afbf39c0f2297c6abef6d670a82a2079b0836191","name":"https://git.kernel.org/stable/c/afbf39c0f2297c6abef6d670a82a2079b0836191","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f6da500b0f8106882598b6dec87fe37d653946cf","name":"https://git.kernel.org/stable/c/f6da500b0f8106882598b6dec87fe37d653946cf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7e94cb967778e074411940db4db97f22ed77560c","name":"https://git.kernel.org/stable/c/7e94cb967778e074411940db4db97f22ed77560c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/36315a330e067f7773196940552feacb1debbef1","name":"https://git.kernel.org/stable/c/36315a330e067f7773196940552feacb1debbef1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9b45125501aad2dff7730970461b455b0e0658ee","name":"https://git.kernel.org/stable/c/9b45125501aad2dff7730970461b455b0e0658ee","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f63edb54d8f738f9c21e2068c777ae1c097df6b7","name":"https://git.kernel.org/stable/c/f63edb54d8f738f9c21e2068c777ae1c097df6b7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b895dbed8ac9e12a5ffa1a2165575a8469f8340d","name":"https://git.kernel.org/stable/c/b895dbed8ac9e12a5ffa1a2165575a8469f8340d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a28c486434634f6d1e120711d2b09f3eddea6c98","name":"https://git.kernel.org/stable/c/a28c486434634f6d1e120711d2b09f3eddea6c98","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93120","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93120","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76180d716f91f035d9c8639497cf5459b44e1a51 b895dbed8ac9e12a5ffa1a2165575a8469f8340d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76180d716f91f035d9c8639497cf5459b44e1a51 9b45125501aad2dff7730970461b455b0e0658ee git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76180d716f91f035d9c8639497cf5459b44e1a51 f6da500b0f8106882598b6dec87fe37d653946cf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76180d716f91f035d9c8639497cf5459b44e1a51 a28c486434634f6d1e120711d2b09f3eddea6c98 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76180d716f91f035d9c8639497cf5459b44e1a51 7e94cb967778e074411940db4db97f22ed77560c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76180d716f91f035d9c8639497cf5459b44e1a51 afbf39c0f2297c6abef6d670a82a2079b0836191 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76180d716f91f035d9c8639497cf5459b44e1a51 36315a330e067f7773196940552feacb1debbef1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76180d716f91f035d9c8639497cf5459b44e1a51 f63edb54d8f738f9c21e2068c777ae1c097df6b7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.270 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.221 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.188 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"93120","cve":"CVE-2026-93120","epss":"0.002100000","percentile":"0.115970000","score_date":"2026-09-18","updated_at":"2026-09-19 00:06:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/gadget/configfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b895dbed8ac9e12a5ffa1a2165575a8469f8340d","status":"affected","version":"76180d716f91f035d9c8639497cf5459b44e1a51","versionType":"git"},{"lessThan":"9b45125501aad2dff7730970461b455b0e0658ee","status":"affected","version":"76180d716f91f035d9c8639497cf5459b44e1a51","versionType":"git"},{"lessThan":"f6da500b0f8106882598b6dec87fe37d653946cf","status":"affected","version":"76180d716f91f035d9c8639497cf5459b44e1a51","versionType":"git"},{"lessThan":"a28c486434634f6d1e120711d2b09f3eddea6c98","status":"affected","version":"76180d716f91f035d9c8639497cf5459b44e1a51","versionType":"git"},{"lessThan":"7e94cb967778e074411940db4db97f22ed77560c","status":"affected","version":"76180d716f91f035d9c8639497cf5459b44e1a51","versionType":"git"},{"lessThan":"afbf39c0f2297c6abef6d670a82a2079b0836191","status":"affected","version":"76180d716f91f035d9c8639497cf5459b44e1a51","versionType":"git"},{"lessThan":"36315a330e067f7773196940552feacb1debbef1","status":"affected","version":"76180d716f91f035d9c8639497cf5459b44e1a51","versionType":"git"},{"lessThan":"f63edb54d8f738f9c21e2068c777ae1c097df6b7","status":"affected","version":"76180d716f91f035d9c8639497cf5459b44e1a51","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/gadget/configfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.13"},{"lessThan":"4.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.270","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.221","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.270","versionStartIncluding":"4.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"4.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"4.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"4.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"4.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"4.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"4.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"4.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: configfs: fix out-of-bounds read of qw_sign\n\nos_desc_qw_sign_show() passes OS_STRING_QW_SIGN_LEN as the input\nlength to utf16s_to_utf8s(), but that argument counts UTF-16 code\nunits while OS_STRING_QW_SIGN_LEN (14) is the byte size of qw_sign[].\nThe array holds only OS_STRING_QW_SIGN_LEN / 2 (7) code units, so the\nconversion reads up to 7 units (14 bytes) past the end of qw_sign[]\ninto the following members of struct gadget_info when the stored\nsignature fills the array without a NUL terminator, exposing those\nbytes through the configfs attribute.\n\nThe store path halves the count for its input bound but passes the\nfull byte count as the utf8s_to_utf16s() output limit; use the\ndestination code-unit count in both directions."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:11:26.548Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/b895dbed8ac9e12a5ffa1a2165575a8469f8340d"},{"url":"https://git.kernel.org/stable/c/9b45125501aad2dff7730970461b455b0e0658ee"},{"url":"https://git.kernel.org/stable/c/f6da500b0f8106882598b6dec87fe37d653946cf"},{"url":"https://git.kernel.org/stable/c/a28c486434634f6d1e120711d2b09f3eddea6c98"},{"url":"https://git.kernel.org/stable/c/7e94cb967778e074411940db4db97f22ed77560c"},{"url":"https://git.kernel.org/stable/c/afbf39c0f2297c6abef6d670a82a2079b0836191"},{"url":"https://git.kernel.org/stable/c/36315a330e067f7773196940552feacb1debbef1"},{"url":"https://git.kernel.org/stable/c/f63edb54d8f738f9c21e2068c777ae1c097df6b7"}],"title":"usb: gadget: configfs: fix out-of-bounds read of qw_sign","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-93120","datePublished":"2026-09-17T16:11:26.548Z","dateReserved":"2026-09-17T16:02:15.086Z","dateUpdated":"2026-09-17T16:11:26.548Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:18:06","lastModifiedDate":"2026-09-17 17:18:06","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"93120","Ordinal":"1","Title":"usb: gadget: configfs: fix out-of-bounds read of qw_sign","CVE":"CVE-2026-93120","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"93120","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: configfs: fix out-of-bounds read of qw_sign\n\nos_desc_qw_sign_show() passes OS_STRING_QW_SIGN_LEN as the input\nlength to utf16s_to_utf8s(), but that argument counts UTF-16 code\nunits while OS_STRING_QW_SIGN_LEN (14) is the byte size of qw_sign[].\nThe array holds only OS_STRING_QW_SIGN_LEN / 2 (7) code units, so the\nconversion reads up to 7 units (14 bytes) past the end of qw_sign[]\ninto the following members of struct gadget_info when the stored\nsignature fills the array without a NUL terminator, exposing those\nbytes through the configfs attribute.\n\nThe store path halves the count for its input bound but passes the\nfull byte count as the utf8s_to_utf16s() output limit; use the\ndestination code-unit count in both directions.","Type":"Description","Title":"usb: gadget: configfs: fix out-of-bounds read of qw_sign"}]}}}