From: Rongqi Sun <sunrongqi@huawei.com>
Date: Wed, 17 Apr 2024 03:03:43 +0000 (+0000)
Subject: bluestore/bluestore_types: avoid heap-buffer-overflow in another way to keep code... 
X-Git-Tag: v18.2.5~328^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=59534903ebad47e6f2bd9aa9bcc57a1d8a7a14e6;p=ceph.git

bluestore/bluestore_types: avoid heap-buffer-overflow in another way to keep code uniformity

Signed-off-by: Rongqi Sun <sunrongqi@huawei.com>
(cherry picked from commit 8564caf393a8fe6ef1bb1741a399ab264397648c)

 Conflicts:
	src/os/bluestore/bluestore_types.h
- No 'aux_items.end' check in reef
---

diff --git a/src/os/bluestore/bluestore_types.h b/src/os/bluestore/bluestore_types.h
index 4c96e8903260..e9b0d47eff35 100644
--- a/src/os/bluestore/bluestore_types.h
+++ b/src/os/bluestore/bluestore_types.h
@@ -1310,7 +1310,7 @@ struct sb_info_space_efficient_map_t {
       if (aux_items.size() != 0) {
 	auto it = std::lower_bound(
 	  aux_items.begin(),
-	  aux_items.end(),
+	  aux_items.end() - 1,
 	  id,
 	  [](const sb_info_t& a, const uint64_t& b) {
 	    return a < b;