{"id":"CVE-2026-98367","title":"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_q…","summary":"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_q…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < f11e09fe2fc3a11ccdf8f932b68181b0bb1d2078","Linux >= 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < e3f039082856adab7e195dea1af45d93dd6a3f1c","Linux >= 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < ad50d19f3d1ce052b3a146143581e930a1efb33e","Linux >= 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < 030306bbb9273af80f14d7af20129661964cd9a7","Linux >= 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < df2584750314336edcbcc21fb388e04b260f35b7","Linux >= 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < 9dcc0f4e488b70cff81e0e5717a498c929cf5de3","Linux >= 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < bfdc744bf20ae4c3ef2e470298de5237c5c9a13c","Linux >= 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < 32cd87f54dd1070020e664ccb0312a9f0fea79b4","Linux 5.3"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T09:18:30.970","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98367","references":[{"url":"https://git.kernel.org/stable/c/030306bbb9273af80f14d7af20129661964cd9a7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/32cd87f54dd1070020e664ccb0312a9f0fea79b4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9dcc0f4e488b70cff81e0e5717a498c929cf5de3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ad50d19f3d1ce052b3a146143581e930a1efb33e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bfdc744bf20ae4c3ef2e470298de5237c5c9a13c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/df2584750314336edcbcc21fb388e04b260f35b7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e3f039082856adab7e195dea1af45d93dd6a3f1c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f11e09fe2fc3a11ccdf8f932b68181b0bb1d2078","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-06T08:50:17.391Z","slug":"CVE-2026-98367","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}