{"id":"CVE-2026-98560","summary":"net/rds: size a connection's path set by the transport it ends up with","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/rds: size a connection's path set by the transport it ends up with\n\n__rds_conn_create() computes npaths from the caller's transport before\nit decides whether a connection to one of the host's own addresses is\nto be handled by the loopback transport instead.  That substitution is\nwhat an RDS/TCP socket sending to a local address gets, and after it\nthe path init loop still runs for the TCP transport's RDS_MPATH_WORKERS\npaths and allocates an ordered workqueue for each, while\nrds_loop_conn_alloc() only ever provides transport data for path 0.\n\nrds_conn_destroy() sizes its teardown from c_trans, by then the\nloopback transport, so it visits path 0 only - and\nrds_conn_path_destroy() would skip the other paths anyway, since it\nreturns before destroy_workqueue() for a path without transport data.\nkfree(c_path) then drops the last pointers to seven workqueues.  That\nrepeats for every such connection, on every netns teardown or module\nunload, and every distinct local destination address is a separate\nconnection.\n\nRecompute npaths once the transport is final, so that creation and\ndestruction agree on the set of paths.  The c_path array stays sized\nfor the caller's transport; the unused entries are freed with it.","modified":"2026-10-20T02:31:00.786089648Z","published":"2026-10-18T15:18:27.162Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98560.json","cna_assigner":"Linux"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/670f303169d2d36f315c40f6d3d18b5ee8498fea"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ba3d1f480c7a3fba963e7867ad6cc557c197acbc"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98560.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98560"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4716af3897e95997d08183d351cece2dec9ee0c0"},{"fixed":"670f303169d2d36f315c40f6d3d18b5ee8498fea"},{"fixed":"ba3d1f480c7a3fba963e7867ad6cc557c197acbc"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98560.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.2.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98560.json"}}],"schema_version":"1.9.0"}