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-rw-r--r--builtin/index-pack.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index 2e680d7a7a..e243d9d22e 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -161,7 +161,7 @@ static void use(int bytes)
input_offset += bytes;
/* make sure off_t is sufficiently large not to wrap */
- if (consumed_bytes > consumed_bytes + bytes)
+ if (signed_add_overflows(consumed_bytes, bytes))
die("pack too large for current definition of off_t");
consumed_bytes += bytes;
}