{"cve":"CVE-2026-93120","nvd":{"published":"2026-09-17T17:18:06.667","modified":"2026-10-19T10:17:01.980","status":"Received","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/36315a330e067f7773196940552feacb1debbef1","https://git.kernel.org/stable/c/7e94cb967778e074411940db4db97f22ed77560c","https://git.kernel.org/stable/c/9b45125501aad2dff7730970461b455b0e0658ee","https://git.kernel.org/stable/c/a28c486434634f6d1e120711d2b09f3eddea6c98","https://git.kernel.org/stable/c/afbf39c0f2297c6abef6d670a82a2079b0836191"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-93120","score":0.00216,"percentile":0.11975,"date":"2026-10-26"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}