{"id":"CVE-2026-93154","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-93154","summary":"RDMA/irdma: Add refcounting to user ring MRs","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Add refcounting to user ring MRs\n\nPrevent userspace from deregistering the MRs that back QP/CQ/SRQ rings\nby bumping the MR's refcount upon association.","published":"2026-09-17T16:11:50.107Z","modified":"2026-09-20T11:30:39.748156597Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.18.52"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/07974c267f603a76aead348bca97deee95efdcc9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a6c0e693a7c881bfa43ac74cbcad1f8e10f1382b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f67d8a08f60c9217df6d40da56422d2049f5e334"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93154.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93154"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-20T11:30:39.748156597Z"}}