GitLab

commit 80834312

 upstream.

The overflow check for a + n * b should be (n > (ULONG_MAX - a) / b),
rather than (n > ULONG_MAX / b - a).
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>