{"id":"CVE-2026-98367","revision":"1d36e37964f84ccf974c627025b382c1","records":[{"revision":"1d36e37964f84ccf974c627025b382c1","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98367","aliases":[],"title":"RDMA/siw: Clear association under lock if siw_qp_modify fails in siw_accept","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Clear association under lock if siw_qp_modify fails in siw_accept\n\nWe need to clear cep before release state_lock as siw_qp_llp_close and\nsiw_qp_modify->siw_qp_llp_close did.\n\nOtherwise if siw_qp_modify() fails in siw_accept(), the QP's state_lock\nis released before the error path cleanup. A concurrent ibv_modify_qp()\ntransitioning the QP to ERROR can race in this window:\n\n  siw_accept()                       ibv_modify_qp(ERROR)\n  ----------------------             ----------------------\n  siw_qp_modify() fails\n  up_write(&qp->state_lock)\n                                     down_write(&qp->state_lock)\n                                     nextstate_from_idle():\n\t\t\t\t     if (qp->cep)\n                                       siw_cep_put(qp->cep) <- frees cep\n                                       qp->cep = NULL\n  goto error\n    cep->qp = NULL                   <- UAF\n\nClear qp->cep and drop the association reference taken by siw_cep_get(),\nall under the write lock held from the initial down_write(&qp->state_lock).\nThread B therefore sees qp->cep == NULL, skips its own put, and cannot free\nthe cep before siw_accept() is done with it.","state":0,"publishedAt":"2026-10-06T08:46:52.452+00:00","modifiedAt":"2026-10-19T09:18:19.262+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/sw/siw/siw_cm.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6c52fdc244b5ccc468006fd65a504d4ee33743c7\",\n                            \"lessThan\": \"f11e09fe2fc3a11ccdf8f932b68181b0bb1d2078\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6c52fdc244b5ccc468006fd65a504d4ee33743c7\",\n                            \"lessThan\": \"e3f039082856adab7e195dea1af45d93dd6a3f1c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6c52fdc244b5ccc468006fd65a504d4ee33743c7\",\n                            \"lessThan\": \"ad50d19f3d1ce052b3a146143581e930a1efb33e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6c52fdc244b5ccc468006fd65a504d4ee33743c7\",\n                            \"lessThan\": \"030306bbb9273af80f14d7af20129661964cd9a7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6c52fdc244b5ccc468006fd65a504d4ee33743c7\",\n                            \"lessThan\": \"df2584750314336edcbcc21fb388e04b260f35b7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6c52fdc244b5ccc468006fd65a504d4ee33743c7\",\n                            \"lessThan\": \"9dcc0f4e488b70cff81e0e5717a498c929cf5de3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6c52fdc244b5ccc468006fd65a504d4ee33743c7\",\n                            \"lessThan\": \"bfdc744bf20ae4c3ef2e470298de5237c5c9a13c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6c52fdc244b5ccc468006fd65a504d4ee33743c7\",\n                            \"lessThan\": \"32cd87f54dd1070020e664ccb0312a9f0fea79b4\",\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/sw/siw/siw_cm.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.3\",\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":[{"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/f11e09fe2fc3a11ccdf8f932b68181b0bb1d2078","https://git.kernel.org/stable/c/e3f039082856adab7e195dea1af45d93dd6a3f1c","https://git.kernel.org/stable/c/ad50d19f3d1ce052b3a146143581e930a1efb33e","https://git.kernel.org/stable/c/030306bbb9273af80f14d7af20129661964cd9a7","https://git.kernel.org/stable/c/df2584750314336edcbcc21fb388e04b260f35b7","https://git.kernel.org/stable/c/9dcc0f4e488b70cff81e0e5717a498c929cf5de3","https://git.kernel.org/stable/c/bfdc744bf20ae4c3ef2e470298de5237c5c9a13c","https://git.kernel.org/stable/c/32cd87f54dd1070020e664ccb0312a9f0fea79b4"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98367","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98367","identifiers":["CVE-2026-98367"]},"retained":false,"historicalAffected":[]}],"coverage":[]}