{"id":"CVE-2026-92480","summary":"scsi: ufs: core: Validate string descriptors","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Validate string descriptors\n\nThe string descriptor length includes a two-byte header while the UTF-16\npayload starts after it. utf16s_to_utf8s() expects a count of UTF-16 code\nunits, not bytes. Passing the payload byte count can make it read beyond\nthe descriptor buffer.\n\nValidate that the payload has an even byte count, pass a code-unit count to\nthe converter, and allocate sufficient UTF-8 output space.\n\nThe raw string buffer starts after the descriptor header but its size is\nbLength. Copying bLength bytes from that pointer can read beyond the\nresponse buffer.\n\nAllocate a zeroed bLength-sized buffer and copy only the UTF-16\npayload. This preserves the raw buffer size consumed by the RPMB device-ID\nABI while avoiding the overread.","modified":"2026-09-19T03:47:29.345251585Z","published":"2026-09-17T16:09:57.719Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92480.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/66da25277256b6bf4c3fdbf3c9bfd43324c9cf25"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d96e83d028d7d8762e424e49c671d49ac2ecf14f"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92480.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92480"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4b828fe156a662a4b6135019bf077040340f299b"},{"fixed":"66da25277256b6bf4c3fdbf3c9bfd43324c9cf25"},{"fixed":"d96e83d028d7d8762e424e49c671d49ac2ecf14f"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92480.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92480.json"}}],"schema_version":"1.9.0"}