{"id":"CVE-2026-90219","published":"2026-09-17T17:17:17.290","lastModified":"2026-09-17T17:17:17.290","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cxgb4: Free debugfs on registration failure\n\nc4iw_alloc() creates the per-device debugfs tree (dev->debugfs_root via\nsetup_debugfs()), but it is removed only in c4iw_remove(), not in\nc4iw_dealloc().  When RDMA device registration fails, the registration\nworker's err_dealloc_ctx path calls c4iw_dealloc() directly, bypassing\nc4iw_remove(), so the debugfs dentries leak and outlive the freed\nc4iw_dev.\n\nMove debugfs_remove_recursive() into c4iw_dealloc() so every path that\nfrees ctx->dev also removes its debugfs tree.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/046425412529dbfca1433c8bef5641b271b4ab2a","tags":[]},{"url":"https://git.kernel.org/stable/c/459b59f7ed56511d6529311cb4e5e482ebfcfb8e","tags":[]},{"url":"https://git.kernel.org/stable/c/479a7f90060e62bdd9bb4036ec0a70bf460f6d23","tags":[]},{"url":"https://git.kernel.org/stable/c/c332d9e7dce234d8bef78271d003a68ee943b61b","tags":[]},{"url":"https://git.kernel.org/stable/c/cd60992f09b7e83bfd3c76e3bb06b29f3e2fa0a8","tags":[]},{"url":"https://git.kernel.org/stable/c/ea41b5630fa3d9877ce9ed8832cf5575f742bfbb","tags":[]},{"url":"https://git.kernel.org/stable/c/f98e894ec029a752cf9c7f7834741bead0fb463d","tags":[]},{"url":"https://git.kernel.org/stable/c/fe5c16bb6252dea6025b748257ddc3b2665495b0","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}