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Fix segfault in dd1_save_walk_data

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Fix null pointer dereference when input array is not allocated and walk
data isn't found.
This commit is contained in:
Nunuhara Cabbage
2025-09-28 18:52:05 -07:00
parent 2198bf5970
commit f6e1be89d3
1 changed files with 3 additions and 3 deletions
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src/dungeon/dungeon.c
+3 -3
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@@ -633,10 +633,10 @@ static bool dd1_save_walk_data(struct dungeon_context *ctx, int map, struct page
int offset = dd1_find_walk_data(array, map, ctx->dgn);
if (offset == WALK_DATA_NOT_FOUND) {
offset = array->nr_vars;
array->values[1].i += 1;
union vm_value dim = { .i = array->nr_vars + 4 + nr_cells };
offset = array ? array->nr_vars : 0;
union vm_value dim = { .i = offset + 4 + nr_cells };
*page = array = realloc_array(array, 1, &dim, AIN_ARRAY_INT, 0, false);
array->values[1].i += 1;
} else if (offset == WALK_DATA_BROKEN) {
if (array)
WARNING("Discarding broken walk data");