--- cve: "CVE-2026-92509" severity: "LOW" cvss: 3.1 epss: "5.9%" vendor: "Linux" kev: false exploited: false published: "2026-09-17 17:17:53" tags: [cve, security, low] source: tsecurity.de CVE-Dossier exported: "2026-09-21T14:48:40+02:00" --- # CVE-2026-92509 > 3.1 LOW ## Beschreibung In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix potential use after free in counter_release() When accessing a counter via the netlink path the only synchronization mechanism for the said counter is rdma_restrack_get(). Currently, rdma_restrack_del() is invoked at the end of counter_release(), which is too late, since by that point vendor-specific resources associated with the counter might already be freed. This can leave a short window where the counter remains accessible through restrack, leading to a potential use-after-free. Fix this by moving the rdma_restrack_del() call to be before the freeing of the vendor-specific resources, ensuring that the counter is removed from restrack before its internal resources are released. This guarantees that no new users hold references to a counter that is in the process of destruction. ## Patch verfügbar (OSV) - Kernel ≥ 6.1.188 - Kernel ≥ 6.6.157 - Kernel ≥ 6.12.110 - Kernel ≥ 6.18.52 - Kernel ≥ 7.2.6 ## Referenzen - - - - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-92509) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_