commit-graph: free write-context entries before overwriting

When writing a split graph file, we replace the final element of the commit_graph_hash_after and commit_graph_filenames_after arrays. But since these are allocated strings, we need to free them before overwriting to avoid leaking the old string. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Jeff King committed Oct 3, 2023 at 16:30 UTC 274bfa7f28fea96fafa114f2508ebef53735d7b6
1 file changed +2
commit-graph.c
+2
index 4aa2f294f1..744b7eb1a3 100644 --- a/commit-graph.c +++ b/commit-graph.c @@ -2065,9 +2065,11 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx) free(graph_name); } + free(ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 1]); ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 1] = xstrdup(hash_to_hex(file_hash)); final_graph_name = get_split_graph_filename(ctx->odb, ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 1]); + free(ctx->commit_graph_filenames_after[ctx->num_commit_graphs_after - 1]); ctx->commit_graph_filenames_after[ctx->num_commit_graphs_after - 1] = final_graph_name; result = rename(ctx->graph_name, final_graph_name);