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-rw-r--r--src/shared/socket-util.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/shared/socket-util.c b/src/shared/socket-util.c
index f8c6795e7c..6f4979853e 100644
--- a/src/shared/socket-util.c
+++ b/src/shared/socket-util.c
@@ -695,7 +695,7 @@ int in_addr_prefix_intersect(
uint32_t x, nm;
x = be32toh(a->in.s_addr ^ b->in.s_addr);
- nm = 0xFFFFFFFFUL << (32 - m);
+ nm = (m == 0) ? 0 : 0xFFFFFFFFUL << (32 - m);
return (x & nm) == 0;
}