Messages in this thread | | | Date | Thu, 1 May 2003 13:52:19 -0700 | From | Greg KH <> | Subject | Re: [CHECKER] 5 potential user-pointer errors that allow arbitrary reads from kernel |
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On Wed, Apr 30, 2003 at 09:39:18PM -0700, Junfeng Yang wrote: > --------------------------------------------------------- > [BUG] proc_dir_entry.write_proc can take tainted inputs > > /home/junfeng/linux-2.5.63/drivers/usb/media/vicam.c:1117:vicam_write_proc_gain: > ERROR:TAINTED:1117:1117: passing tainted ptr 'buffer' to simple_strtoul > [Callstack: > /home/junfeng/linux-2.5.63/net/core/pktgen.c:991:vicam_write_proc_gain((tainted > 1))] > > static int vicam_write_proc_gain(struct file *file, const char *buffer, > unsigned long count, void *data) > { > struct vicam_camera *cam = (struct vicam_camera *)data; > > > Error ---> > cam->gain = simple_strtoul(buffer, NULL, 10);
Real bug, I'll fix this.
> --------------------------------------------------------- > [BUG] proc_dir_entry.write_proc can take tainted inputs > > /home/junfeng/linux-2.5.63/drivers/usb/media/vicam.c:1107:vicam_write_proc_shutter: > ERROR:TAINTED:1107:1107: passing tainted ptr 'buffer' to simple_strtoul > [Callstack: > /home/junfeng/linux-2.5.63/net/core/pktgen.c:991:vicam_write_proc_shutter((tainted > 1))] > > static int vicam_write_proc_shutter(struct file *file, const char *buffer, > unsigned long count, void *data) > { > struct vicam_camera *cam = (struct vicam_camera *)data; > > > Error ---> > cam->shutter_speed = simple_strtoul(buffer, NULL, 10);
Again, real bug, I'll fix it.
thanks,
greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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