In the Linux kernel, the following vulnerability has been resolved: RDMA/umem: Be careful about boundary conditions in ib_umem_find_best_pgsz() Several corner cases, especially important on 32 bits: - umem->iova is u64, the function argument should pass in u64 or iova will be truncated - Check that the length is not too large for the iova - Check that lengths > 4G don't overflow the GENMASK
https://git.kernel.org/stable/c/ae3cf7d2c4d506c5c91746321644e1a08d989e2a
https://git.kernel.org/stable/c/5fc5b73109540809b094710fac44da81dd8a3ff8
https://git.kernel.org/stable/c/09ea6837a0434fb4db99528a5055b6d822135dcf