Messages in this thread | ![/](/images/icornerl.gif) | | Date | Thu, 1 May 2003 13:53:59 -0700 (PDT) | From | Junfeng Yang <> | Subject | Re: [CHECKER] 5 potential user-pointer errors that allow arbitrary reads from kernel |
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Thanks!
On Thu, 1 May 2003, Greg KH wrote:
> 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 >
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