CVE-2026-93236: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: media: meson: vdec: fix NULL pointer deref in vdec_try_fmt_common When VIDIOC_TRY_FMT is called with an unsupported pixel format on the OUTPUT queue, vdec_try_fmt_common() falls back to V4L2_PIX_FMT_MPEG2. However, if a distro has locally patched MPEG2 support out (as it has been broken for some time) the platform format table does not contain MPEG2 so find_format() returns NULL and the subsequent dereference of fmt_out->max_width triggers a NULL pointer dereference. Fix this by falling back to the first format in the platform's format array instead of hardcoding V4L2_PIX_FMT_MPEG2. This is always valid since every platform defines at least one format.

Засегнати продукти

• Linux Linux: 3e7f51bd96077acad6acd7b45668f65b44233c4e преди 276f28672bb6d5d5feca78db4219c7b5adf1be26; 3e7f51bd96077acad6acd7b45668f65b44233c4e преди c620906fb1b2ad75d408ea9d06040d66952d4a31; 3e7f51bd96077acad6acd7b45668f65b44233c4e преди 3839b6be2279fc4f558723f2c0fbfc9c42070958; 3e7f51bd96077acad6acd7b45668f65b44233c4e преди 680a89683197cdfe4e03e6fd7755454c647d39c1; 3e7f51bd96077acad6acd7b45668f65b44233c4e преди f2375a308640e401c142c5426d52c3d10e016d25; 3e7f51bd96077acad6acd7b45668f65b44233c4e преди 96dafbae77f50bfe2228bcfedcd8652c5e5f08e8; 3e7f51bd96077acad6acd7b45668f65b44233c4e преди d61ba609c3226af3c84268ba606ea06ee63e511b; 3e7f51bd96077acad6acd7b45668f65b44233c4e преди 20aa934ace6917262ff579a73ec018d06a7bad1c
• Linux Linux: 5.3; преди 5.3; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.51 до 6.18.*; 7.2.5 до 7.2.*; 7.3 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-93236
• https://nvd.nist.gov/vuln/detail/CVE-2026-93236
• 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