Fix Valgrind errors (#12619)

2 files changed, 2 insertions, 0 deletions

diff --git a/database/engine/journalfile.c b/database/engine/journalfile.c
index 1541eb10aa..0b3d3eeb84 100644
--- a/database/engine/journalfile.c
+++ b/database/engine/journalfile.c
@@ -84,6 +84,7 @@ void * wal_get_transaction_buffer(struct rrdengine_worker_config* wc, unsigned s
         if (unlikely(ret)) {
             fatal("posix_memalign:%s", strerror(ret));
         }
+        memset(ctx->commit_log.buf, 0, buf_size);
         buf_pos = ctx->commit_log.buf_pos = 0;
         ctx->commit_log.buf_size =  buf_size;
     }
diff --git a/database/engine/rrdengine.c b/database/engine/rrdengine.c
index a975cfa6ec..f47738aea2 100644
--- a/database/engine/rrdengine.c
+++ b/database/engine/rrdengine.c
@@ -735,6 +735,7 @@ static int do_flush_pages(struct rrdengine_worker_config* wc, int force, struct
         fatal("posix_memalign:%s", strerror(ret));
         /* freez(xt_io_descr);*/
     }
+    memset(xt_io_descr->buf, 0, ALIGN_BYTES_CEILING(size_bytes));
     (void) memcpy(xt_io_descr->descr_array, eligible_pages, sizeof(struct rrdeng_page_descr *) * count);
     xt_io_descr->descr_count = count;