CVE-2026-52939

Linux kernel vulnerability CVE-2026-52939 affects RDS over InfiniBand. A NULL dereference can occur in rds_ib_send_cqe_handler() when handling masked atomic completions, due to rds_ib_send_unmap_op() not covering masked opcodes. The issue occurs because masked atomic opcodes (IB_WR_MASKED_ATOMIC_...

EUVD-2026-38709

In the Linux kernel, the following vulnerability has been resolved: net/rds: fix NULL deref in rdsibsendcqehandler on masked atomic completion rdsibxmitatomic always programs a masked atomic opcode IBWRMASKEDATOMICCMPANDSWP or IBWRMASKEDATOMICFETCHANDADD for every RDS atomic cmsg. But the...