Hello, syzbot has tested the proposed patch and the reproducer did not trigger crash: Reported-and-tested-by: syzbot+2b10b240fbbed30f10fb@xxxxxxxxxxxxxxxxxxxxxxxxx Tested on: commit: 5e29d144 RDMA/mlx5: Prevent UMR usage with RO only when we.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next kernel config: https://syzkaller.appspot.com/x/.config?x=6d613b606deeaad7 dashboard link: https://syzkaller.appspot.com/bug?extid=2b10b240fbbed30f10fb compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) Note: testing is done by a robot and is best-effort only.