From: Oguzhan Ozmen <oozmen@bloomberg.net>
Date: Mon, 24 Nov 2025 21:01:17 +0000 (+0000)
Subject: RGW/datalog: do not try to add entry if changeslog is shutting down
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=97501cb49f245656654dd62c4f09bc0b03a55c1c;p=ceph.git

RGW/datalog: do not try to add entry if changeslog is shutting down

When handling shutdown, backends are reset. As a result, accessing them
can result in derefencing nullptr.

See https://tracker.ceph.com/issues/66100#note-6 for details.

Fixes: https://tracker.ceph.com/issues/66100
Signed-off-by: Oguzhan Ozmen <oozmen@bloomberg.net>
---

diff --git a/src/rgw/driver/rados/rgw_datalog.cc b/src/rgw/driver/rados/rgw_datalog.cc
index a1d803cea77a..a8bd435ccead 100644
--- a/src/rgw/driver/rados/rgw_datalog.cc
+++ b/src/rgw/driver/rados/rgw_datalog.cc
@@ -890,7 +890,7 @@ void RGWDataChangesLog::add_entry(const DoutPrefixProvider* dpp,
 				  const rgw::bucket_log_layout_generation& gen,
 				  int shard_id, asio::yield_context y)
 {
-  if (!log_data) {
+  if (!log_data || down_flag) {
     return;
   }