c2da3bf237
Even when a mount namespace is created, previously host's sysfs is used, especially with RootDirectory= or RootImage=, thus service processes can still access the properties of the network interfaces in the main network namespace through sysfs. This makes, sysfs is remounted with the new network namespace tag, except when PrivateMounts= is explicitly disabled. Hence, the properties of the network interfaces in the main network namespace cannot be accessed by service processes through sysfs. Fixes #26422.
System and Service Manager
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