{"id":"CVE-2026-98354","revision":"6d519d0dd59e436cb73a69ef93547d7e","records":[{"revision":"6d519d0dd59e436cb73a69ef93547d7e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98354","aliases":[],"title":"RDMA/mad: Fix receive buffer leak when PKey enforcement fails","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mad: Fix receive buffer leak when PKey enforcement fails\n\nib_mad_complete_recv() initializes mad_recv_wc->rmpp_list and then runs\nib_mad_enforce_security() before linking recv_buf onto that list.  On\nfailure it calls ib_free_recv_mad(), which only walks rmpp_list and frees\nthe ib_mad_private of every buffer found there.  As the list is still\nempty at that point, nothing is freed at all.\n\nThe caller cannot clean up either: ib_mad_recv_done() sets recv to NULL\nright after ib_mad_complete_recv() returns, assuming the MAD layer took\nownership of the buffer.  Every MAD that fails the PKey check therefore\nleaks one ib_mad_private (about 300 bytes per IB port MAD, ~2K for OPA),\nand a remote node can trigger this repeatedly by sending MADs with a\nwrong PKey.\n\nLink recv_buf onto rmpp_list right after the list is initialized, so the\nerror path has something to free.","state":0,"publishedAt":"2026-10-06T08:46:41.768+00:00","modifiedAt":"2026-10-19T09:18:04.973+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                        \"drivers/infiniband/core/mad.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"47a2b338fe63200d716d2e24131cdb49f17c77da\",\n                            \"lessThan\": \"4617c9a856188674dddb0ca66979746d07688579\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"47a2b338fe63200d716d2e24131cdb49f17c77da\",\n                            \"lessThan\": \"8e2036fb47a5b152d53eadbd35abf311bd34cc7f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"47a2b338fe63200d716d2e24131cdb49f17c77da\",\n                            \"lessThan\": \"bad289e42f512646a988f278f536d21547df73f1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"47a2b338fe63200d716d2e24131cdb49f17c77da\",\n                            \"lessThan\": \"752b30e9d339008e5ce7eed412e9446078916129\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"47a2b338fe63200d716d2e24131cdb49f17c77da\",\n                            \"lessThan\": \"39c4ea72a40503e102ae07e6776005f96ca078a6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"47a2b338fe63200d716d2e24131cdb49f17c77da\",\n                            \"lessThan\": \"5091e25ec503f7fc02723ca435226467b68caac7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"47a2b338fe63200d716d2e24131cdb49f17c77da\",\n                            \"lessThan\": \"c0d8df85db146d6275e226cb950023be69dd6c77\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"47a2b338fe63200d716d2e24131cdb49f17c77da\",\n                            \"lessThan\": \"3476c28c9addfa253f505e6bd87f1f5598b961d0\",\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                        \"drivers/infiniband/core/mad.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.13\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.13\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\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\": \"6.18.54\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.8\",\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/4617c9a856188674dddb0ca66979746d07688579","https://git.kernel.org/stable/c/8e2036fb47a5b152d53eadbd35abf311bd34cc7f","https://git.kernel.org/stable/c/bad289e42f512646a988f278f536d21547df73f1","https://git.kernel.org/stable/c/752b30e9d339008e5ce7eed412e9446078916129","https://git.kernel.org/stable/c/39c4ea72a40503e102ae07e6776005f96ca078a6","https://git.kernel.org/stable/c/5091e25ec503f7fc02723ca435226467b68caac7","https://git.kernel.org/stable/c/c0d8df85db146d6275e226cb950023be69dd6c77","https://git.kernel.org/stable/c/3476c28c9addfa253f505e6bd87f1f5598b961d0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98354","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98354","identifiers":["CVE-2026-98354"]},"retained":false,"historicalAffected":[]}],"coverage":[]}