CVE-2026-80836
CVE CVE-2026-80836EUVD EUVD-2026-71286Published 2026-09-04T15:54:44.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: crypto: virtio - bound the akcipher result length virtio_crypto_dataq_akcipher_callback() sets the result length from the device-reported response length without bounding it to the destination buffer, which was allocated for the original request length. sg_copy_from_buffer() then reads that many bytes from the destination buffer; a backend reporting a larger length over-reads adjacent kernel heap into the caller's scatterlist (an out-of-bounds read). Clamp the reported length to the originally requested destination length. A conforming device reports no more than that, so valid results are unaffected.
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 a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a <3fda114a42f1510a4ec8a0b17a0cfc997952ccc2; a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a <1f9f877b1ef1fbd4ee95571cddf39c8002cee252; a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a <5545de5050cbc3594506d74f2c392b0716cf8bca; patch: 7.3-rc1; patch: 6.18.49; a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a <f77a956f6a19f9463ef1527c9d0cda50dded6b92; patch: 7.2.3; patch: 0; patch: 7.1.13; 5.19
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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