{"id":"CVE-2026-98611","revision":"0f28e8750c094030b22a65a90dafee74","records":[{"revision":"0f28e8750c094030b22a65a90dafee74","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98611","aliases":[],"title":"bpf: Check params size before reading reserved fields","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check params size before reading reserved fields\n\nbpf_crypto_ctx_create() is a kfunc whose second argument is declared\nwith the __sz annotation, so the verifier only guarantees that\nparams__sz bytes of params are valid.  The function nevertheless reads\nparams->reserved[0] and params->reserved[1] (offsets 14 and 15) before\ncomparing params__sz against the size of struct bpf_crypto_params, so a\nBPF program can pass a shorter buffer and have the kernel read past the\nregion that was validated for it.\n\nMove the size check in front of the reserved field reads.","state":0,"publishedAt":"2026-10-18T15:19:26.922+00:00","modifiedAt":"2026-10-19T09:22:38.197+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                        \"kernel/bpf/crypto.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3e1c6f35409f9e447bf37f64840f5b65576bfb78\",\n                            \"lessThan\": \"e03253f5d65ebcd2a6d479f140c3bd9c7e4fb84a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3e1c6f35409f9e447bf37f64840f5b65576bfb78\",\n                            \"lessThan\": \"cd12d3e08620257fbcaa262785d7f4b9473afc7a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3e1c6f35409f9e447bf37f64840f5b65576bfb78\",\n                            \"lessThan\": \"86a0e945fb645ea90233fde239cd2de79f01974c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3e1c6f35409f9e447bf37f64840f5b65576bfb78\",\n                            \"lessThan\": \"a11212910cf09b2fe8db9afa41ef60c4f81879c5\",\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                        \"kernel/bpf/crypto.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.10\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.10\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.55\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.9\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/e03253f5d65ebcd2a6d479f140c3bd9c7e4fb84a","https://git.kernel.org/stable/c/cd12d3e08620257fbcaa262785d7f4b9473afc7a","https://git.kernel.org/stable/c/86a0e945fb645ea90233fde239cd2de79f01974c","https://git.kernel.org/stable/c/a11212910cf09b2fe8db9afa41ef60c4f81879c5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98611","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98611","identifiers":["CVE-2026-98611"]},"retained":false,"historicalAffected":[]}],"coverage":[]}