{"id":"CVE-2026-98560","state":"PUBLISHED","title":"net/rds: size a connection's path set by the transport it ends up with","description":"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.","publishedAt":"2026-10-18T15:18:27.162Z","updatedAt":"2026-10-19T09:21:44.401Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4716af3897e95997d08183d351cece2dec9ee0c0","status":"affected","lessThan":"670f303169d2d36f315c40f6d3d18b5ee8498fea","versionType":"git"},{"version":"4716af3897e95997d08183d351cece2dec9ee0c0","status":"affected","lessThan":"ba3d1f480c7a3fba963e7867ad6cc557c197acbc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/rds/connection.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"7.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.0","versionType":"semver"},{"version":"7.2.9","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/rds/connection.c"]}],"references":["https://git.kernel.org/stable/c/670f303169d2d36f315c40f6d3d18b5ee8498fea","https://git.kernel.org/stable/c/ba3d1f480c7a3fba963e7867ad6cc557c197acbc"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98560.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98560","state":"PUBLISHED","datePublished":"2026-10-18T15:18:27.162Z","dateUpdated":"2026-10-19T09:21:44.401Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.357Z"},"containers":{"cna":{"title":"net/rds: size a connection's path set by the transport it ends up with","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4716af3897e95997d08183d351cece2dec9ee0c0","status":"affected","lessThan":"670f303169d2d36f315c40f6d3d18b5ee8498fea","versionType":"git"},{"version":"4716af3897e95997d08183d351cece2dec9ee0c0","status":"affected","lessThan":"ba3d1f480c7a3fba963e7867ad6cc557c197acbc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/rds/connection.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"7.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.0","versionType":"semver"},{"version":"7.2.9","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/rds/connection.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/670f303169d2d36f315c40f6d3d18b5ee8498fea"},{"url":"https://git.kernel.org/stable/c/ba3d1f480c7a3fba963e7867ad6cc557c197acbc"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:21:44.401Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}