{"id":"CVE-2025-68317","revision":"528317daf3de493f840d2bbd7dd6263e","records":[{"revision":"528317daf3de493f840d2bbd7dd6263e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-68317","aliases":[],"title":"io_uring/zctx: check chained notif contexts","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/zctx: check chained notif contexts\n\nSend zc only links ubuf_info for requests coming from the same context.\nThere are some ambiguous syz reports, so let's check the assumption on\nnotification completion.","state":0,"publishedAt":"2025-12-16T15:39:47.159+00:00","modifiedAt":"2026-10-15T22:02:49.138+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                        \"io_uring/notif.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6fe4220912d19152a26ce19713ab232f4263018d\",\n                            \"lessThan\": \"aaafd17d3f4be2c15539359a5b4bfa00237f687f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6fe4220912d19152a26ce19713ab232f4263018d\",\n                            \"lessThan\": \"d664a3ce3a604231a0b144c152a3755d03b18b60\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6fe4220912d19152a26ce19713ab232f4263018d\",\n                            \"lessThan\": \"ab3ea6eac5f45669b091309f592c4ea324003053\",\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                        \"io_uring/notif.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\": \"6.12.58\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.17.8\",\n                            \"lessThanOrEqual\": \"6.17.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18\",\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/aaafd17d3f4be2c15539359a5b4bfa00237f687f","https://git.kernel.org/stable/c/d664a3ce3a604231a0b144c152a3755d03b18b60","https://git.kernel.org/stable/c/ab3ea6eac5f45669b091309f592c4ea324003053"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-68317","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-68317","identifiers":["CVE-2025-68317"]},"retained":false,"historicalAffected":[]}],"coverage":[]}