{"id":"CVE-2026-53110","revision":"656446f430be4dc38ad41749bfda54d2","records":[{"revision":"656446f430be4dc38ad41749bfda54d2","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-53110","aliases":[],"title":"s390/bpf: Zero-extend bpf prog return values and kfunc arguments","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.","state":0,"publishedAt":"2026-06-24T16:30:44.036+00:00","modifiedAt":"2026-10-19T19:57:24.88+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/s390/net/bpf_jit_comp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"528eb2cb87bc1353235a6384696b4849bde8b0ba\",\n                            \"lessThan\": \"edc90a12073b9a530064a99945c183dde120cb99\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"528eb2cb87bc1353235a6384696b4849bde8b0ba\",\n                            \"lessThan\": \"44c4f999b03f55debb1a0c5ab5c1796895a1adf8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"528eb2cb87bc1353235a6384696b4849bde8b0ba\",\n                            \"lessThan\": \"366b0e05ee24f5ba62bdc7ec1346038258b9a797\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"528eb2cb87bc1353235a6384696b4849bde8b0ba\",\n                            \"lessThan\": \"834918a77be51419383bf1dda9f02b81ecf26b34\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"528eb2cb87bc1353235a6384696b4849bde8b0ba\",\n                            \"lessThan\": \"202e42e4aa890172366354b233c42c73107a3f59\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/s390/net/bpf_jit_comp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.141\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.91\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.33\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.10\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 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,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/edc90a12073b9a530064a99945c183dde120cb99","https://git.kernel.org/stable/c/44c4f999b03f55debb1a0c5ab5c1796895a1adf8","https://git.kernel.org/stable/c/366b0e05ee24f5ba62bdc7ec1346038258b9a797","https://git.kernel.org/stable/c/834918a77be51419383bf1dda9f02b81ecf26b34","https://git.kernel.org/stable/c/202e42e4aa890172366354b233c42c73107a3f59"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53110","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-53110","identifiers":["CVE-2026-53110"]},"retained":false,"historicalAffected":[]}],"coverage":[]}