{"id":"CVE-2025-21805","summary":"RDMA/rtrs: Add missing deinit() call","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rtrs: Add missing deinit() call\n\nA warning is triggered when repeatedly connecting and disconnecting the\nrnbd:\n list_add corruption. prev-\u003enext should be next (ffff88800b13e480), but was ffff88801ecd1338. (prev=ffff88801ecd1340).\n WARNING: CPU: 1 PID: 36562 at lib/list_debug.c:32 __list_add_valid_or_report+0x7f/0xa0\n Workqueue: ib_cm cm_work_handler [ib_cm]\n RIP: 0010:__list_add_valid_or_report+0x7f/0xa0\n  ? __list_add_valid_or_report+0x7f/0xa0\n  ib_register_event_handler+0x65/0x93 [ib_core]\n  rtrs_srv_ib_dev_init+0x29/0x30 [rtrs_server]\n  rtrs_ib_dev_find_or_add+0x124/0x1d0 [rtrs_core]\n  __alloc_path+0x46c/0x680 [rtrs_server]\n  ? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server]\n  ? rcu_is_watching+0xd/0x40\n  ? __mutex_lock+0x312/0xcf0\n  ? get_or_create_srv+0xad/0x310 [rtrs_server]\n  ? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server]\n  rtrs_rdma_connect+0x23c/0x2d0 [rtrs_server]\n  ? __lock_release+0x1b1/0x2d0\n  cma_cm_event_handler+0x4a/0x1a0 [rdma_cm]\n  cma_ib_req_handler+0x3a0/0x7e0 [rdma_cm]\n  cm_process_work+0x28/0x1a0 [ib_cm]\n  ? _raw_spin_unlock_irq+0x2f/0x50\n  cm_req_handler+0x618/0xa60 [ib_cm]\n  cm_work_handler+0x71/0x520 [ib_cm]\n\nCommit 667db86bcbe8 (\"RDMA/rtrs: Register ib event handler\") introduced a\nnew element .deinit but never used it at all. Fix it by invoking the\n`deinit()` to appropriately unregister the IB event handler.","modified":"2026-04-02T12:45:14.398579Z","published":"2025-02-27T20:00:58.290Z","related":["SUSE-SU-2025:02254-1","SUSE-SU-2025:02307-1","SUSE-SU-2025:02333-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21805.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1af2c769032b6b334cd2a867d7d8c7cbbc527b2d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5a79cc9bc961fafe90787f86e8f53ba6fad8d63b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/81468c4058a62e84e475433b83b3edc613294f5e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21805.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21805"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"667db86bcbe82e789d82c2e8c8c40756ec2e1999"},{"fixed":"5a79cc9bc961fafe90787f86e8f53ba6fad8d63b"},{"fixed":"1af2c769032b6b334cd2a867d7d8c7cbbc527b2d"},{"fixed":"81468c4058a62e84e475433b83b3edc613294f5e"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21805.json"}}],"schema_version":"1.7.5"}