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Date: Mon, 13 Dec 2010 00:47:34 +0100 (CET) From: Andi Kleen <andi@...stfloor.org> To: segooon@...il.com, kees.cook@...onical.com, gregkh@...e.de, ak@...ux.intel.com, linux-kernel@...r.kernel.org, stable@...nel.org Subject: [PATCH] [151/223] usb: misc: iowarrior: fix information leak to userland 2.6.35-longterm review patch. If anyone has any objections, please let me know. ------------------ From: Vasiliy Kulikov <segooon@...il.com> commit eca67aaeebd6e5d22b0d991af1dd0424dc703bfb upstream. Structure iowarrior_info is copied to userland with padding byted between "serial" and "revision" fields uninitialized. It leads to leaking of contents of kernel stack memory. Signed-off-by: Vasiliy Kulikov <segooon@...il.com> Acked-by: Kees Cook <kees.cook@...onical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de> Signed-off-by: Andi Kleen <ak@...ux.intel.com> --- drivers/usb/misc/iowarrior.c | 1 + 1 file changed, 1 insertion(+) Index: linux/drivers/usb/misc/iowarrior.c =================================================================== --- linux.orig/drivers/usb/misc/iowarrior.c +++ linux/drivers/usb/misc/iowarrior.c @@ -552,6 +552,7 @@ static long iowarrior_ioctl(struct file /* needed for power consumption */ struct usb_config_descriptor *cfg_descriptor = &dev->udev->actconfig->desc; + memset(&info, 0, sizeof(info)); /* directly from the descriptor */ info.vendor = le16_to_cpu(dev->udev->descriptor.idVendor); info.product = dev->product_id; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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