{"id":"CVE-2026-80552","summary":"s390/vfio_ccw: Ensure index for read/write regions are within range","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio_ccw: Ensure index for read/write regions are within range\n\nThe introduction of the capability chain rightly clamped the\nregion indexes to the range of the capabilities itself, but\nneglected to do so for the existing read/write regions which\nshould also be enforced.","modified":"2026-08-28T03:47:28.984949774Z","published":"2026-08-26T14:37:21.178Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80552.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99"},{"type":"WEB","url":"https://git.kernel.org/stable/c/649badf3a2fd8929e40198603a2cb21b74c21700"},{"type":"WEB","url":"https://git.kernel.org/stable/c/79ea5e0c4c8a9842ae85f45062d947b3297dfc07"},{"type":"WEB","url":"https://git.kernel.org/stable/c/988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9f5f9a78fedc45bc29d6a0a64e3a3472361afae5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d3b1e38404b22df5a1f93019f2bb656feaad5ae3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d597fa1273802941c7801202135976fecc29672b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80552.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80552"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"db8e5d17ac03a65e2e0ee0ba50bf61a99741d871"},{"fixed":"3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99"},{"fixed":"d3b1e38404b22df5a1f93019f2bb656feaad5ae3"},{"fixed":"79ea5e0c4c8a9842ae85f45062d947b3297dfc07"},{"fixed":"d597fa1273802941c7801202135976fecc29672b"},{"fixed":"649badf3a2fd8929e40198603a2cb21b74c21700"},{"fixed":"988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf"},{"fixed":"9f5f9a78fedc45bc29d6a0a64e3a3472361afae5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80552.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.2.0"},{"fixed":"5.15.218"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.184"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.153"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.105"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.46"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80552.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}