Zhengchao Shao <shaozhengchao@xxxxxxxxxx> writes: > Before detach the prog, we should check detach prog exist or not. If we're adding such a check we should also check that it's the *right* program. I.e., query the ID for the program name and check that it matches what the program attached, then obtain an fd and pass that as XDP_EXPECTED_FD on detach to make sure it wasn't swapped out in the meantime... -Toke
