[pve-devel] [PATCH pve-storage] fix #7077: Improve error message for IDS shorter than 2 characters

[Arthur Bied-Charreton]

On Wed, Jan 21, 2026 at 11:15:08AM +0100, Arthur Bied-Charreton wrote:
> The regex in Storage::parse_lvm_name requires at least 2 characters, but
> shorter IDs only failed with "contains illegal characters". Add explicit
> length check to return a clearer error message in this case.
> 
> Signed-off-by: Arthur Bied-Charreton <a.bied-charreton at proxmox.com>
> ---
>  src/PVE/Storage/Plugin.pm | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/src/PVE/Storage/Plugin.pm b/src/PVE/Storage/Plugin.pm
> index 6f3d691..58f714c 100644
> --- a/src/PVE/Storage/Plugin.pm
> +++ b/src/PVE/Storage/Plugin.pm
> @@ -333,6 +333,11 @@ PVE::JSONSchema::register_format('pve-storage-vgname', \&parse_lvm_name);
>  sub parse_lvm_name {
>      my ($name, $noerr) = @_;
>  
> +    if (length($name) < 2) {
> +        return undef if $noerr;
> +        die "lvm name '$name' can't be shorter than 2 characters\n";
> +    }
> +
>      if ($name !~ m/^[a-z0-9][a-z0-9\-\_\.]*[a-z0-9]$/i) {
>          return undef if $noerr;
>          die "lvm name '$name' contains illegal characters\n";
> -- 
> 2.47.3
> 
> 
This was supposed to be sent as part of a series, sorry about that,
please disregard and refer to:
https://lore.proxmox.com/pve-devel/20260121103407.187187-1-a.bied-charreton@proxmox.com/T/#t