{"cve":"CVE-2026-53110","nvd":{"published":"2026-06-24T17:17:25.357","modified":"2026-10-19T20:19:04.620","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/bpf: Zero-extend bpf prog return values and kfunc arguments\n\ns390x ABI requires callers to zero-extend unsigned arguments and\nsign-extend signed arguments, and callees to zero-extend unsigned\nreturn values and sign-extend signed return values.\n\ns390 BPF JIT currently implements only sign extension. Fix this\nomission and implement zero extension too.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-190"],"references":["https://git.kernel.org/stable/c/202e42e4aa890172366354b233c42c73107a3f59","https://git.kernel.org/stable/c/366b0e05ee24f5ba62bdc7ec1346038258b9a797","https://git.kernel.org/stable/c/44c4f999b03f55debb1a0c5ab5c1796895a1adf8","https://git.kernel.org/stable/c/834918a77be51419383bf1dda9f02b81ecf26b34","https://git.kernel.org/stable/c/edc90a12073b9a530064a99945c183dde120cb99"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2026-53110","score":0.0012,"percentile":0.0183,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}