{"id":"CVE-2026-93236","revision":"bbee3ba747d3423f8bb197df4f631569","records":[{"revision":"bbee3ba747d3423f8bb197df4f631569","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-93236","aliases":[],"title":"media: meson: vdec: fix NULL pointer deref in vdec_try_fmt_common","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: meson: vdec: fix NULL pointer deref in vdec_try_fmt_common\n\nWhen VIDIOC_TRY_FMT is called with an unsupported pixel format on the\nOUTPUT queue, vdec_try_fmt_common() falls back to V4L2_PIX_FMT_MPEG2.\nHowever, if a distro has locally patched MPEG2 support out (as it has\nbeen broken for some time) the platform format table does not contain\nMPEG2 so find_format() returns NULL and the subsequent dereference of\nfmt_out->max_width triggers a NULL pointer dereference.\n\nFix this by falling back to the first format in the platform's format\narray instead of hardcoding V4L2_PIX_FMT_MPEG2. This is always valid\nsince every platform defines at least one format.","state":0,"publishedAt":"2026-09-24T15:33:35.013+00:00","modifiedAt":"2026-10-19T09:07:47.914+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/staging/media/meson/vdec/vdec.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3e7f51bd96077acad6acd7b45668f65b44233c4e\",\n                            \"lessThan\": \"276f28672bb6d5d5feca78db4219c7b5adf1be26\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3e7f51bd96077acad6acd7b45668f65b44233c4e\",\n                            \"lessThan\": \"c620906fb1b2ad75d408ea9d06040d66952d4a31\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3e7f51bd96077acad6acd7b45668f65b44233c4e\",\n                            \"lessThan\": \"3839b6be2279fc4f558723f2c0fbfc9c42070958\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3e7f51bd96077acad6acd7b45668f65b44233c4e\",\n                            \"lessThan\": \"680a89683197cdfe4e03e6fd7755454c647d39c1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3e7f51bd96077acad6acd7b45668f65b44233c4e\",\n                            \"lessThan\": \"f2375a308640e401c142c5426d52c3d10e016d25\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3e7f51bd96077acad6acd7b45668f65b44233c4e\",\n                            \"lessThan\": \"96dafbae77f50bfe2228bcfedcd8652c5e5f08e8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3e7f51bd96077acad6acd7b45668f65b44233c4e\",\n                            \"lessThan\": \"d61ba609c3226af3c84268ba606ea06ee63e511b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3e7f51bd96077acad6acd7b45668f65b44233c4e\",\n                            \"lessThan\": \"20aa934ace6917262ff579a73ec018d06a7bad1c\",\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/staging/media/meson/vdec/vdec.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.3\",\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/276f28672bb6d5d5feca78db4219c7b5adf1be26","https://git.kernel.org/stable/c/c620906fb1b2ad75d408ea9d06040d66952d4a31","https://git.kernel.org/stable/c/3839b6be2279fc4f558723f2c0fbfc9c42070958","https://git.kernel.org/stable/c/680a89683197cdfe4e03e6fd7755454c647d39c1","https://git.kernel.org/stable/c/f2375a308640e401c142c5426d52c3d10e016d25","https://git.kernel.org/stable/c/96dafbae77f50bfe2228bcfedcd8652c5e5f08e8","https://git.kernel.org/stable/c/d61ba609c3226af3c84268ba606ea06ee63e511b","https://git.kernel.org/stable/c/20aa934ace6917262ff579a73ec018d06a7bad1c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-93236","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-93236","identifiers":["CVE-2026-93236"]},"retained":false,"historicalAffected":[]}],"coverage":[]}