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On 2016-12-16 14:16, Rich Freeman wrote: |
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> If you don't have USE=-suid on your xorg-server package, then X is |
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> probably running suid root. |
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> |
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> In order to not have it run this way you need support for kernel |
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> modesetting. I was surprised when I found out that X11 even worked |
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> that way (we're talking late 90s here). It seems a bit like running |
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> pppd as root so that it can directly talk to a UART because you have |
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> an aversion to using /dev/ttyS*. In any case the kernel devs have |
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> generally been making the move to kernel modesetting so that your |
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> device drivers actually are in the kernel and not in random userspace |
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> programs (I'm all for microkernels, but not like this). |
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> |
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> If you don't have kernel modesetting enabled then X11 won't be able to |
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> run with -suid set. Google for gentoo kernel modesetting for a guide |
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> on how to enable it on most modern hardware. |
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There's another dimension to this dilemma: if one wants to avoid using a |
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display manager and start X server directly (or via startx or similar), |
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then the X server must be suid for that reason, even with KMS. |
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Unfortunately. |
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I am not hotly interested in starting a subthread about why one would |
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want to do this, but if others are, go ahead :-P |
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