CVE-2026-98253

The Linux kernel contains a vulnerability in the RDMA/ucma component where a race condition occurs during multicast join and leave operations. Specifically, if copy_to_user() fails during ucma_process_join(), the ctx->mutex is dropped prematurely, potentially allowing concurrent JOIN_MCAST cal...

EUVD-2026-93181

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...