--- imap/imap.c.ORIG	2021-09-30 01:50:21 +0000
+++ imap/imap.c	2021-09-30 01:51:31 +0000
@@ -1422,7 +1422,7 @@
   if (!idata->ctx)
     return -1;
 
-  if (!mutt_bit_isset (idata->ctx->rights, right))
+  if (!idata->ctx || !mutt_bit_isset (idata->ctx->rights, right))
     return 0;
 
   if (right == MUTT_ACL_WRITE && !imap_has_flag (idata->flags, name))