Operating Systems > Linux and UNIX
Stupid bug
DukePuke:
Ok, i will explain more shit. I dont like one thing in linux (currently having 2.4.20 version of kernel, but if this bug is kernel problem, it is too shine to miss it).
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Then i work with linux (for example login as root), and do startx, do graphic interface, etc, browse net and so on.
And I plan to change user. I logout, to the text environment, login user, password, everything is ok.
i do startx.
I see strange view during X startup for about 2 seconds. Lets say you divide your screen in 2 equal parts. Top part, and bottom part. And you, during those 2 seconds, see black in top part, and in bottom part you see... half of screenshot, which was made before last session logout. yes, half of screenshot.
So imagine, you login as root, launch X interface, and watch porn. And you logout of system, and shutdown PC. Next day some kind of user will turn up comp, login in HIS account, and he will see view of gmplayer, playing porn movie, (in bottom part of screen) for 2 seconds, after that X interface will be ready and that user will do stuff in his account.
Thats damn hole, lack of privacy, to avoid serious shit you have to close all windows before logout, cuz some kind of user can see *important document* or email letter, or smth.. well i hope you understood this, and probably even encountered this problem themselves
Refalm:
Well, that's because xfree86 isn't bugfixed and updated as much as we all like to.
WMD:
You shouldn't be using root at all.
flap:
Incidentally, you should never need to login to X as root.
DukePuke:
Yes damn who cares, thats just example, but user data have to be protected too. Linux is multi-user operating system, so btw its threat that user can see other user stuff, and what he done before logout.. this *should* not to be ,damn.. And the thing its appears even after restart/shutdown, means this screenshot is stored in HDD, btw and where, if other user can access it?
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