{"id":"CVE-2026-89878","summary":"media: s2255: check firmware size before reading trailing marker","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: s2255: check firmware size before reading trailing marker\n\ns2255_probe() reads a 4-byte marker and version from the last 8 bytes\nof the firmware blob (fw-\u003edata[fw_size - 8] and [fw_size - 4]). If the\nfirmware file is shorter than 8 bytes, fw_size - 8 underflows and the\naccess reads out of bounds. Validate the firmware size before indexing.","modified":"2026-09-18T03:48:33.771064315Z","published":"2026-09-16T10:31:44.876Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89878.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/330f2936ab768c7215322a476f033143e8891d28"},{"type":"WEB","url":"https://git.kernel.org/stable/c/342632a4d8ba3fafc1556deee0b7a48dd7860336"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3e03f1209c1c8a45a7bc559f4ecd79d9b33f706d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5626785b0e4665326e4d96736c106161da09b2f0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6f6a5b0b0a84c2de0e152f2841e57bc226db924f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7d221859ba45d7228d0138c9a3e55bd3bb31e14e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8eca0f85eeb0789be40e637bcf9a21c4265b6c6f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ffc27411ea60b8a09f1fea3d664b65210fdeb454"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89878.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89878"},{"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":"14d962602c8bf86e63c9b9272be1f0360d0a448a"},{"fixed":"6f6a5b0b0a84c2de0e152f2841e57bc226db924f"},{"fixed":"8eca0f85eeb0789be40e637bcf9a21c4265b6c6f"},{"fixed":"ffc27411ea60b8a09f1fea3d664b65210fdeb454"},{"fixed":"5626785b0e4665326e4d96736c106161da09b2f0"},{"fixed":"3e03f1209c1c8a45a7bc559f4ecd79d9b33f706d"},{"fixed":"342632a4d8ba3fafc1556deee0b7a48dd7860336"},{"fixed":"7d221859ba45d7228d0138c9a3e55bd3bb31e14e"},{"fixed":"330f2936ab768c7215322a476f033143e8891d28"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89878.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.28"},{"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":"6.18.51"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89878.json"}}],"schema_version":"1.9.0"}