{"id":"CVE-2026-93280","summary":"greybus: audio: bound the topology section sizes against the fetched size","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ngreybus: audio: bound the topology section sizes against the fetched size\n\ngb_audio_gb_get_topology() fetches a topology blob of a module-supplied\nsize, and gbaudio_tplg_parse_data() then walks it by adding the\nmodule-supplied size_dais, size_controls and size_widgets fields to\nform the control, widget and route section offsets. Those le32 sizes\nare never checked against the fetched blob, so a module reporting a\nsmall topology size but large section sizes makes the offsets point\npast the allocation, and parsing reads out of bounds.\n\nReject a topology whose section sizes do not fit within the fetched\nsize before it is parsed.","modified":"2026-09-25T03:48:54.634105513Z","published":"2026-09-24T15:52:22.253Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93280.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/33d8c7b794d2a30637c9d3fcb478f1d3222bef1e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/52daf9de692ebac813d110eb1e677dc0e1f4a5ab"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6f764363b3173d805be11e59a8f23ecee2d420d5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ba86de9f7b0d7903d2df5ea2373e34d8ca3fc43e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c9191f2e2f35f1209eb2dc24b31129dd47b48c16"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cfcc5a41a9664eb68023aae4cd0d485b256bd7c7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d0f6eaba60705bacd9bb4ce48eab50ef3f546777"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dd5593aee0a0fb353e1164aff7b65e563fe1f232"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93280.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93280"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"184992e305f1de3a3d5fa446da3a2bc76be7c54a"},{"fixed":"ba86de9f7b0d7903d2df5ea2373e34d8ca3fc43e"},{"fixed":"dd5593aee0a0fb353e1164aff7b65e563fe1f232"},{"fixed":"6f764363b3173d805be11e59a8f23ecee2d420d5"},{"fixed":"52daf9de692ebac813d110eb1e677dc0e1f4a5ab"},{"fixed":"d0f6eaba60705bacd9bb4ce48eab50ef3f546777"},{"fixed":"c9191f2e2f35f1209eb2dc24b31129dd47b48c16"},{"fixed":"cfcc5a41a9664eb68023aae4cd0d485b256bd7c7"},{"fixed":"33d8c7b794d2a30637c9d3fcb478f1d3222bef1e"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93280.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.9.0"},{"fixed":"5.10.270"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.221"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93280.json"}}],"schema_version":"1.9.0"}