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-rw-r--r--src/diff.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/diff.c b/src/diff.c
index e23d3891f..75e9ae9a3 100644
--- a/src/diff.c
+++ b/src/diff.c
@@ -1558,8 +1558,10 @@ int git_diff_format_email(
goto on_error;
}
+ GITERR_CHECK_ALLOC_ADD(offset, 1);
summary = git__calloc(offset + 1, sizeof(char));
GITERR_CHECK_ALLOC(summary);
+
strncpy(summary, opts->summary, offset);
}