Miklos Szeredi wrote: > > Andrew, please skip this patch, for now. > > Serge found a problem with the fsuid approach: setfsuid(nonzero) will > remove filesystem related capabilities. So even if root is trying to > set the "user=UID" flag on a mount, access to the target (and in case > of bind, the source) is checked with user privileges. > > Root should be able to set this flag on any mountpoint, _regardless_ > of permissions. > Right, if you're using fsuid != 0, you're not running as root (fsuid is the equivalent to euid for the filesystem.) I fail to see how ruid should have *any* impact on mount(2). That seems to be a design flaw. -hpa - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
