Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: svcrdma: Clear sc_cm_id when ADDR_CHANGE replacement fails When svc_rdma_listen_handler() handles RDMA_CM_EVENT_ADDR_CHANGE, it creates a replacement listener cm_id and returns 1, telling the CM core to destroy the old one. If the replacement allocation fails, sc_cm_id still points at the old cm_id that the CM core is about to destroy. Any subsequent dereference of sc_cm_id -- such as svc_rdma_detach()'s rdma_disconnect() call -- is a use-after-free. NULL sc_cm_id on the failure path and guard svc_rdma_detach()'s rdma_disconnect() call against NULL so that the listener can be torn down safely when the server shuts down.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected d1b586e75ec619dde1af47e21a41a6b1b51874c2 before 2a68aeb2de8ad0fef9c50e73a50622a35c6af1a8; affected d1b586e75ec619dde1af47e21a41a6b1b51874c2 before 65f0f82f20334e76acaf29087a59af7b3b9699ed; affected d1b586e75ec619dde1af47e21a41a6b1b51874c2 before 673e358ab7c11f8cec223c6a36a793056a67facd; affected d1b586e75ec619dde1af47e21a41a6b1b51874c2 before 01500306e1d50de7ca7a2cdcdfa28ac0523eb747; affected 5cd069ad1cf7fb46af31f0dbe2850868335f5272; affected 6.6.160 before 6.7 |
| Linux / Linux | affected 6.11; unaffected 0 before 6.11; unaffected 6.12.114 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.2.4 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.