From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 24 Mar 2021 13:19:04 +0000 (+0100)
Subject: mount-util: generate failure if bind_remount_one_with_mountinfo() is called on non... 
X-Git-Tag: v249-rc1~502^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0338df47cfaeb023c7c2eaf6b698060fd133157b;p=thirdparty%2Fsystemd.git

mount-util: generate failure if bind_remount_one_with_mountinfo() is called on non-existing path
---

diff --git a/src/shared/mount-util.c b/src/shared/mount-util.c
index f226dc1aa68..13f202d7e7d 100644
--- a/src/shared/mount-util.c
+++ b/src/shared/mount-util.c
@@ -376,8 +376,12 @@ int bind_remount_one_with_mountinfo(
                 return r;
 
         fs = mnt_table_find_target(table, path, MNT_ITER_FORWARD);
-        if (!fs)
+        if (!fs) {
+                if (laccess(path, F_OK) < 0) /* Hmm, it's not in the mount table, but does it exist at all? */
+                        return -errno;
+
                 return -EINVAL; /* Not a mount point we recognize */
+        }
 
         opts = mnt_fs_get_vfs_options(fs);
         if (opts) {