Re: Bug: mount doing bad security check: only root can use -types, (effective EUID is 5013)

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Karel Zak wrote:
ruid = getuid();
    euid = geteuid();

    cxt->restricted = (uid_t) 0 == ruid && ruid == euid ? 0 : 1;

in your case geteuid() returns 5013.
----
But my EUID isn't 5013 ("LOGINUID" is). That's the complaint/bug. I looked at 'id': it doesn't show euid:

Ishtar:/tmp> sudo bash -c 'id; echo "UID=$UID, EUID=$EUID"; /bin/mount devpts /tmp/mnt -t devpts'
uid=0(root) gid=0(root) groups=...
UID=0, EUID=0
mount: only root can use "--types" option (effective UID is 5013)

I also mentioned I'm using
'sudo', which also sets both the UID & EUID to the new USER (unless
you go out of your way to configure it not to do so -- in which case
many things don't function normally -- including bash which would
operate in restricted mode (like rbash).



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