CVE-2026-80749

CVE CVE-2026-80749EUVD EUVD-2026-70353Published 2026-09-03T08:26:30.000ZLast changed 2026-09-04T04:58:29.000ZCVSS 7.1

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: drm/connector/hdmi: Fix out of bounds memory read A helper function was copying a given audio infoframe into the connector's copy but using the size of the destination (a generic target, sized to accept many different data blocks) not the source (a very specific type of data block). Thus, it was copying 60 bytes of data from a 28 byte allocation. Fix that by using the source size instead, together with a build bug on the source size actually being smaller than the destination. I hit this running KUnit tests under KASAN (while debugging something else entirely). In the real world, it seems unlikely to cause an actual problem. It is a read not a write so it can't corrupt any memory. However, it could potentially fall off the end of a page and cause an accvio bug.

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: 6.12.105; f378b77227bc4732922c57f92be89438bb1018a1 <e5b527804a1ea4f70e139179d3062cf5de8c06ab; f378b77227bc4732922c57f92be89438bb1018a1 <f72bb95732bc5ca87b50c52c8f087ba501950809; patch: 6.18.46; 6.11; f378b77227bc4732922c57f92be89438bb1018a1 <9ecf8ba763d0ffe0673538eb4bf7806f20455d19; patch: 7.2; patch: 0; patch: 7.1.10; f378b77227bc4732922c57f92be89438bb1018a1 <d9f7454c185c0c7f0973e11d62ad6c06862c324c

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

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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