Re: Bug#274860: Acknowledgement (kernel-image-2.6.8-1-686: CDROM_SEND_PACKET ioctls only work as root)

From: Jens Axboe
Date: Mon Oct 04 2004 - 09:07:13 EST


On Mon, Oct 04 2004, Luke Kenneth Casson Leighton wrote:
> found it.
>
> it's a new piece of kernel code verify_command in
> drivers/block/scsi_ioctl.c, which checks for the capability
> CAP_SYS_RAWIO.
>
> ah, dammit.
>
> for k3b to work, you'd have to install it setuid root, call
> getcap(), remove all but the necessary capabilities (i.e. don't
> remove CAP_SYS_RAWIO), do a setfsuid() and setfsgid() and do
> a setcap().

it works in 2.6.9-rcX.

--
Jens Axboe

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