On Mon, Nov 15, 2021 at 05:52:27PM +0100, Andrea Righi wrote:
There might be an arbitrary free open fd slot when we run the addfd sub-test, so checking for progressive numbers of file descriptors starting from memfd is not always a reliable check and we could get the following failure:
# RUN global.user_notification_addfd ... # seccomp_bpf.c:3989:user_notification_addfd:Expected listener (18) == nextfd++ (9) # user_notification_addfd: Test terminated by assertion
Simply check if memfd and listener are valid file descriptors and start counting for progressive file checking with the listener fd.
Fixes: 93e720d710df ("selftests/seccomp: More closely track fds being assigned") Signed-off-by: Andrea Righi andrea.righi@canonical.com
Thanks! Acked-by: Christian Brauner christian.brauner@ubuntu.com