config_file: Don't crash on options without a section

(cherry picked from commit c4d7fa95)

config_file: Don't crash on options without a section
(cherry picked from commit c4d7fa95)
9023f8f6 · Nelson Elhage · Patrick Steinhardt · e1295400 · 9023f8f6
Commit 9023f8f6 authored Jul 22, 2018 by Nelson Elhage Committed by Patrick Steinhardt Oct 26, 2018
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src/config_file.c
+4 -0

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--- a/src/config_file.c
+++ b/src/config_file.c
@@ -1075,6 +1075,10 @@ static int read_on_variable(
 	GIT_UNUSED(line);
 	GIT_UNUSED(line_len);

+	if (!current_section) {
+		giterr_set(GITERR_CONFIG, "no section for key: %s", var_name);
+		return -1;
+	}
 	git__strtolower(var_name);
 	git_buf_printf(&buf, "%s.%s", current_section, var_name);
 	git__free(var_name);