CVE-2021-47378 Information

Description

In the Linux kernel the following vulnerability has been resolved:

nvme-rdma: destroy cm id before destroy qp to avoid use after free

We should always destroy cm_id before destroy qp to avoid to get cma event after qp was destroyed which may lead to use after free. In RDMA connection establishment error flow don’t destroy qp in cm event handler.Just report cm_error to upper level qp will be destroy in nvme_rdma_alloc_queue() after destroy cm id.

Reference

https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994 https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744