From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 20 Jun 2023 10:26:46 +0000 (+0200)
Subject: sleep-config: check if we operate on regular file in swap_device_to_device_id() in... 
X-Git-Tag: v254-rc1~164^2~6
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=08e0ed300ad369e0389dfd9335ef6d91b4f8501a;p=thirdparty%2Fsystemd.git

sleep-config: check if we operate on regular file in swap_device_to_device_id() in swap file code path

Similar to the previous commit: before we continue doing swap file
operations let's ensure this actually is a swap file.
---

diff --git a/src/shared/sleep-config.c b/src/shared/sleep-config.c
index cee0a69cb01..0db02fae87b 100644
--- a/src/shared/sleep-config.c
+++ b/src/shared/sleep-config.c
@@ -631,6 +631,10 @@ static int swap_device_to_device_id(const SwapEntry *swap, dev_t *ret_dev) {
                 return 0;
         }
 
+        r = stat_verify_regular(&sb);
+        if (r < 0)
+                return r;
+
         return get_block_device(swap->device, ret_dev);
 }