{"id":"CVE-2026-93236","summary":"media: meson: vdec: fix NULL pointer deref in vdec_try_fmt_common","details":"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-\u003emax_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.","modified":"2026-09-25T03:48:54.491799815Z","published":"2026-09-24T15:33:35.013Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93236.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/20aa934ace6917262ff579a73ec018d06a7bad1c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/276f28672bb6d5d5feca78db4219c7b5adf1be26"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3839b6be2279fc4f558723f2c0fbfc9c42070958"},{"type":"WEB","url":"https://git.kernel.org/stable/c/680a89683197cdfe4e03e6fd7755454c647d39c1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/96dafbae77f50bfe2228bcfedcd8652c5e5f08e8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c620906fb1b2ad75d408ea9d06040d66952d4a31"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d61ba609c3226af3c84268ba606ea06ee63e511b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f2375a308640e401c142c5426d52c3d10e016d25"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93236.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93236"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3e7f51bd96077acad6acd7b45668f65b44233c4e"},{"fixed":"276f28672bb6d5d5feca78db4219c7b5adf1be26"},{"fixed":"c620906fb1b2ad75d408ea9d06040d66952d4a31"},{"fixed":"3839b6be2279fc4f558723f2c0fbfc9c42070958"},{"fixed":"680a89683197cdfe4e03e6fd7755454c647d39c1"},{"fixed":"f2375a308640e401c142c5426d52c3d10e016d25"},{"fixed":"96dafbae77f50bfe2228bcfedcd8652c5e5f08e8"},{"fixed":"d61ba609c3226af3c84268ba606ea06ee63e511b"},{"fixed":"20aa934ace6917262ff579a73ec018d06a7bad1c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93236.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.3.0"},{"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":"6.18.51"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93236.json"}}],"schema_version":"1.9.0"}