{"apiVersion":"1.0","identifier":"CVE-2026-74567","description":"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.","publishedAt":"2026-08-15T13:18:02","lastModifiedAt":"2026-08-19T17:21:11","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74567","cvssScore":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","epssProbability":0.00117,"riskScore":0.72,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74567","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74567","en":"https://www.redsauce.net/en/cves/CVE-2026-74567","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74567","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74567","de":"https://www.redsauce.net/de/cves/CVE-2026-74567","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74567","el":"https://www.redsauce.net/el/cves/CVE-2026-74567"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74567"}}