CVE-2026-93236media: meson: vdec: fix NULL pointer deref in vdec_try_fmt_common
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 3e7f51bd96077acad6acd7b45668f65b44233c4e before 276f28672bb6d5d5feca78db4219c7b5adf1be26; from 3e7f51bd96077acad6acd7b45668f65b44233c4e before c620906fb1b2ad75d408ea9d06040d66952d4a31; from 3e7f51bd96077acad6acd7b45668f65b44233c4e before 3839b6be2279fc4f558723f2c0fbfc9c42070958; from 3e7f51bd96077acad6acd7b45668f65b44233c4e before 680a89683197cdfe4e03e6fd7755454c647d39c1; from 3e7f51bd96077acad6acd7b45668f65b44233c4e before f2375a308640e401c142c5426d52c3d10e016d25; from 3e7f51bd96077acad6acd7b45668f65b44233c4e before 96dafbae77f50bfe2228bcfedcd8652c5e5f08e8; from 3e7f51bd96077acad6acd7b45668f65b44233c4e before d61ba609c3226af3c84268ba606ea06ee63e511b; from 3e7f51bd96077acad6acd7b45668f65b44233c4e before 20aa934ace6917262ff579a73ec018d06a7bad1c | CNA record |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.