[pve-devel] applied: [PATCH v3 container] fix invalid device passthrough being added to config

[Fiona Ebner <f.ebner@proxmox.com>]

Am 16.04.24 um 11:27 schrieb Filip Schauer:
> Fix a bug that allows a device passthrough entry to be added to the
> config despite the device path not pointing to a device. Previously,
> adding an invalid device passthrough entry would throw an error, but the
> entry would still be added to the config. This is fixed by moving the
> respective checks from update_lxc_config to update_pct_config, which is
> run before the entry is written to the config file.
> 
> Signed-off-by: Filip Schauer <f.schauer@proxmox.com>

(...)

> diff --git a/src/PVE/LXC/Config.pm b/src/PVE/LXC/Config.pm
> index 5ac1446..408140f 100644
> --- a/src/PVE/LXC/Config.pm
> +++ b/src/PVE/LXC/Config.pm
> @@ -3,7 +3,8 @@ package PVE::LXC::Config;
>  use strict;
>  use warnings;
>  
> -use Fcntl qw(O_RDONLY);
> +use Errno qw(ENOENT);
> +use Fcntl qw(O_RDONLY :mode);
>  
>  use PVE::AbstractConfig;
>  use PVE::Cluster qw(cfs_register_file);

I dropped the above hunk, because it's a left-over from a previous
version AFAICT.

> @@ -1193,6 +1194,14 @@ sub update_pct_config {
>  		die "$opt: MTU size '$mtu' is bigger than bridge MTU '$bridge_mtu'\n"
>  		    if ($mtu > $bridge_mtu);
>  	    }
> +	} elsif ($opt =~ m/^dev(\d+)$/) {
> +	    my $device = $class->parse_device($value);
> +
> +	    die "Path is not defined for passthrough device $opt"
> +		if !defined($device->{path});
> +
> +            # Validate device
> +            PVE::LXC::Tools::get_device_mode_and_rdev($device->{path});
>  	}
>  	$conf->{pending}->{$opt} = $value;
>  	$class->remove_from_pending_delete($conf, $opt);

With that, applied, thanks!