librados: rados_ioctx_destroy check for initialized ioctx

If rados_ioctx_destroy called with un-initilized ioctx we will hit segmented fault
checking ioctx before calling put will prevent that.

Fixes: https://tracker.ceph.com/issues/55001
Signed-off-by: Nitzan Mordechai <nmordec@redhat.com>
(cherry picked from commit e465cfc62ae0f982edb60291c67f4d76a71efd15)

diff --git a/src/librados/librados_c.cc b/src/librados/librados_c.cc
index ca8f7c3c4890f5122b78a21b8fc54ef2f1304872..d3090c064ac5f40e49bc7131c3522b9689f4c959 100644 (file)
--- a/src/librados/librados_c.cc
+++ b/src/librados/librados_c.cc
@@ -1157,7 +1157,9 @@ extern "C" void LIBRADOS_C_API_DEFAULT_F(rados_ioctx_destroy)(rados_ioctx_t io)
 {
   tracepoint(librados, rados_ioctx_destroy_enter, io);
   librados::IoCtxImpl *ctx = (librados::IoCtxImpl *)io;
-  ctx->put();
+  if (ctx) {
+    ctx->put();
+  }
   tracepoint(librados, rados_ioctx_destroy_exit);
 }
 LIBRADOS_C_API_BASE_DEFAULT(rados_ioctx_destroy);