drivers/infiniband/ulp/rtrs/rtrs-clt.c in the Linux kernel before 5.16.12 has a double free related to rtrs_clt_dev_release.
https://security.netapp.com/advisory/ntap-20220602-0002/
https://github.com/torvalds/linux/commit/8700af2cc18c919b2a83e74e0479038fd113c15d
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.12