Re: [PATCH] Fix a potential NULL pointer dereference in usbat_check_status() in drivers/usb/storage/shuttle_usbat.c

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



tir, 04 09 2007 kl. 13:06 +0200, skrev Jens Axboe:
> On Tue, Sep 04 2007, Micah Gruber wrote:
> > This patch fixes a potential null dereference bug where we dereference us before a null check. This patch simply moves the dereferencing after the null check.
> > 
> > Signed-off-by: Micah Gruber <[email protected]>
> 
> Be careful with stuff like that, if you actually look at the code, a us
> == NULL doesn't seem to be possible (or usbat_flash_transport() would
> have oopsed before).
> 
If that is true, then
        if (!us)
                return USB_STOR_TRANSPORT_ERROR;
is utterly pointless.


Simon Holm Thøgersen

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux