[Samba] Symlink bugs with SMB3 unix extensions

[Jeremy Allison]

On 12/18/25 11:35 AM, Ralph Boehme via samba wrote:
> On 12/18/25 8:32 PM, Jeremy Allison via samba wrote:
>> On 12/18/25 10:25 AM, Nikkos Svoboda via samba wrote:
>>> I can simply think that this *might* not be intended behavior for 
>>> unix extension clients. Is this intended behavior for this setting 
>>> combo?
>>
>> Yes. Setting "wide links = yes" and "allow insecure wide links = yes" 
>> always hides all symlinks from clients. It's dangerously insecure
>> and the settings remain for legacy smb.conf files and cases where
>> the admin knows what they are doing. As I recall setting this
>> does always generate a warning in the log.
> 
> I wonder though if "follow symlinks = no" being forced by SMB3 POSIX 
> should trump "wide links = yes" and "allow insecure wide links = yes" in 
> theory? So this might be a bug.
> 

I think setting "wide links = yes" and "allow insecure wide links = yes"
deliberately turns off SMB3 POSIX, but I haven't had time to check.