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-rw-r--r--ext/digest/digest.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/digest/digest.c b/ext/digest/digest.c
index a575188907..c570055322 100644
--- a/ext/digest/digest.c
+++ b/ext/digest/digest.c
@@ -73,6 +73,7 @@ rb_digest_base_alloc(klass)
algo = get_digest_base_metadata(klass);
+ /* XXX: An uninitialized buffer leads ALGO_Equal() to fail */
pctx = xcalloc(algo->ctx_size, 1);
algo->init_func(pctx);