Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
f378b77227bc4732922c57f92be89438bb1018a1 to < d9f7454c185c0c7f0973e11d62ad6c06862c324caffectedf378b77227bc4732922c57f92be89438bb1018a1 to < e5b527804a1ea4f70e139179d3062cf5de8c06abaffectedf378b77227bc4732922c57f92be89438bb1018a1 to < f72bb95732bc5ca87b50c52c8f087ba501950809affectedf378b77227bc4732922c57f92be89438bb1018a1 to < 9ecf8ba763d0ffe0673538eb4bf7806f20455d19affected
Linux Linux
Default version status: affected
6.11affected0 to < 6.11unaffected6.12.105 to ≤ 6.12.*unaffected6.18.46 to ≤ 6.18.*unaffected7.1.10 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected