Null Pointer Dereference in Linux Kernel's RDMA/rtrs Client

CVE-2026-98355

What is CVE-2026-98355?

A vulnerability exists in the Linux kernel's RDMA/rtrs client where an error during the initialization path can lead to a null pointer dereference. If the init_path() function encounters an error, the cleanup process attempts to execute rtrs_clt_close_conns(). This can result in a call to event tracing code with a NULL kobj name, which attempts to copy from it, leading to a potential system crash. A safeguard has been added to check for NULL before any copy operation to mitigate this issue, enhancing the stability and security of the RDMA/rtrs component.

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