From: Mike Yuan <me@yhndnzj.com>
Date: Mon, 8 Apr 2024 12:19:57 +0000 (+0800)
Subject: userdbctl: avoid NULL pointer deref
X-Git-Tag: v256-rc1~265^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f48b487ddbf6cfc40f7154e06a560ec1bb9ad512;p=thirdparty%2Fsystemd.git

userdbctl: avoid NULL pointer deref

Error from uid_range_load_userns is ignored,
so 'p' could be NULL.
---

diff --git a/src/userdb/userdbctl.c b/src/userdb/userdbctl.c
index f98acce29ec..761f1726824 100644
--- a/src/userdb/userdbctl.c
+++ b/src/userdb/userdbctl.c
@@ -310,6 +310,9 @@ static int table_add_uid_map(
         assert(table);
         assert(add_unavailable);
 
+        if (!p)
+                return 0;
+
         for (size_t i = 0; p && i < p->n_entries; i++) {
                 UIDRangeEntry *x = p->entries + i;