CVE-2026-74567
CVE CVE-2026-74567EUVD EUVD-2026-59632Published 2026-08-15T12:28:08.000ZLast changed 2026-08-19T16:39:09.000ZCVSS 7.1
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: keys: fix out-of-bounds read in keyring_get_key_chunk() For description-level chunks keyring_get_key_chunk() advances the read pointer by level * sizeof(long) past the inline prefix but only bounds-checks the prefix, so a long enough key description is read past its kmemdup(desc, desc_len + 1) allocation. Compute the full byte offset and bounds-check the description against it before reading. The walk only reaches a description-level chunk when two keys collide through the hash, x, type and domain_tag chunks, so this is reached from an unprivileged add_key(2) with a crafted pair of same-type keys whose index hashes collide; KASAN reports a slab-out-of-bounds read.
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 f771fde82051976a6fc0fd570f8b86de4a92124b <79916f40d4ab1b4ae694d8c024fd179454bfe46e; f771fde82051976a6fc0fd570f8b86de4a92124b <e9417d21a22ad2ec398e78fcf084b717ce92cf2f; f771fde82051976a6fc0fd570f8b86de4a92124b <8dba33c1e779d0fb9a2acb31e354cf0fc0229111; f771fde82051976a6fc0fd570f8b86de4a92124b <d1933e03e8c74a018550c31a393b79c4d95bff40; patch: 7.2; f771fde82051976a6fc0fd570f8b86de4a92124b <e5b01998cef8d7f613200230ccaadebe5de9135c; patch: 0; f771fde82051976a6fc0fd570f8b86de4a92124b <4c0c26f751e50d3027eacc4d7d0fabc31f1d7e6b; f771fde82051976a6fc0fd570f8b86de4a92124b <3a744838453fb9309ce5a5526d3252e211d60152; patch: 5.15.216; patch: 6.1.183; 5.3; patch: 5.10.265; patch: 6.12.103; f771fde82051976a6fc0fd570f8b86de4a92124b <63918731f9ae25b5deb022f118e941e6dddfcef4; patch: 6.18.44; patch: 6.6.151; patch: 7.1.8
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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