CVE-2026-93234
CVE CVE-2026-93234EUVD EUVD-2026-86239Published 2026-09-24T15:33:31.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: drm/gud: validate TV mode names before creating enum property The GUD protocol returns TV mode names as fixed-size GUD_CONNECTOR_TV_MODE_NAME_LEN entries and requires each name to be NUL-terminated. gud_connector_add_tv_mode() currently passes each fixed-size entry directly to drm_mode_create_tv_properties_legacy(), which eventually reaches drm_property_add_enum() and strlen(). If a device returns an entry without a terminating NUL byte, strlen() reads past the end of the slot and can run beyond the allocated buffer, triggering an out-of-bounds read. Validate that each returned TV mode name contains a NUL terminator within its fixed-size slot before passing it to the DRM property code. If a malformed entry is found, reject the device response with -EIO. This fixes the out-of-bounds read without changing the handling of valid devices, and avoids silently truncating malformed protocol data.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.2.5; patch: 7.3-rc2; 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <72a95df6bbc7d20c7af1e39d86b3e910cccd01ad; 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <70cffc31a380b3eae45027101647aa94c242aa0e; 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <da1ea35fea67ad841f4ada28dd61b41be65e5437; patch: 6.18.51; patch: 6.6.157; patch: 6.12.110; 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <06fcaf21c18ac88f57fee3803554f48c6026b95f; patch: 0; 5.13; patch: 5.15.221; 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <676f1fb3632bbc9ce83be7938e93fe6bfc9510fd; 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <082e378886547b5b1c4075ed307f7c68547868dc; 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <eab46d9629807db1b5647d17227e16110a18227f; patch: 6.1.188
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
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- Linux — Linux
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