{"id":"CVE-2026-89878","revision":"00d1962cbf824833ac79f1e2567c94fd","records":[{"revision":"00d1962cbf824833ac79f1e2567c94fd","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89878","aliases":[],"title":"media: s2255: check firmware size before reading trailing marker","description":"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->data[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.","state":0,"publishedAt":"2026-09-16T10:31:44.876+00:00","modifiedAt":"2026-10-19T08:54:11.089+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/media/usb/s2255/s2255drv.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"14d962602c8bf86e63c9b9272be1f0360d0a448a\",\n                            \"lessThan\": \"6f6a5b0b0a84c2de0e152f2841e57bc226db924f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"14d962602c8bf86e63c9b9272be1f0360d0a448a\",\n                            \"lessThan\": \"8eca0f85eeb0789be40e637bcf9a21c4265b6c6f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"14d962602c8bf86e63c9b9272be1f0360d0a448a\",\n                            \"lessThan\": \"ffc27411ea60b8a09f1fea3d664b65210fdeb454\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"14d962602c8bf86e63c9b9272be1f0360d0a448a\",\n                            \"lessThan\": \"5626785b0e4665326e4d96736c106161da09b2f0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"14d962602c8bf86e63c9b9272be1f0360d0a448a\",\n                            \"lessThan\": \"3e03f1209c1c8a45a7bc559f4ecd79d9b33f706d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"14d962602c8bf86e63c9b9272be1f0360d0a448a\",\n                            \"lessThan\": \"342632a4d8ba3fafc1556deee0b7a48dd7860336\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"14d962602c8bf86e63c9b9272be1f0360d0a448a\",\n                            \"lessThan\": \"7d221859ba45d7228d0138c9a3e55bd3bb31e14e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"14d962602c8bf86e63c9b9272be1f0360d0a448a\",\n                            \"lessThan\": \"330f2936ab768c7215322a476f033143e8891d28\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/media/usb/s2255/s2255drv.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.28\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.28\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.51\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.5\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/6f6a5b0b0a84c2de0e152f2841e57bc226db924f","https://git.kernel.org/stable/c/8eca0f85eeb0789be40e637bcf9a21c4265b6c6f","https://git.kernel.org/stable/c/ffc27411ea60b8a09f1fea3d664b65210fdeb454","https://git.kernel.org/stable/c/5626785b0e4665326e4d96736c106161da09b2f0","https://git.kernel.org/stable/c/3e03f1209c1c8a45a7bc559f4ecd79d9b33f706d","https://git.kernel.org/stable/c/342632a4d8ba3fafc1556deee0b7a48dd7860336","https://git.kernel.org/stable/c/7d221859ba45d7228d0138c9a3e55bd3bb31e14e","https://git.kernel.org/stable/c/330f2936ab768c7215322a476f033143e8891d28"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89878","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89878","identifiers":["CVE-2026-89878"]},"retained":false,"historicalAffected":[]}],"coverage":[]}