From 4383c705ab2e87acad0a9c16e4a7b39f4e60e39d Mon Sep 17 00:00:00 2001
From: Eugene Kosov <claprix@yandex.ru>
Date: Wed, 14 Oct 2020 21:30:15 +0300
Subject: MDEV-23960 UBSAN ../storage/innobase/buf/buf0buddy.cc:350:6: runtime
 error: index 4096 out of bounds for type 'byte [38]'
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Reviewed by: Marko Mäkelä
---
 storage/innobase/buf/buf0buddy.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'storage/innobase/buf')

diff --git a/storage/innobase/buf/buf0buddy.cc b/storage/innobase/buf/buf0buddy.cc
index a36fc30db9b..80d82b9e78c 100644
--- a/storage/innobase/buf/buf0buddy.cc
+++ b/storage/innobase/buf/buf0buddy.cc
@@ -346,7 +346,7 @@ buf_buddy_alloc_zip(
 		if (buf) {
 			buf_buddy_free_t* buddy =
 				reinterpret_cast<buf_buddy_free_t*>(
-					buf->stamp.bytes
+					reinterpret_cast<byte*>(buf)
 					+ (BUF_BUDDY_LOW << i));
 
 			ut_ad(!buf_pool_contains_zip(buf_pool, buddy));
-- 
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