On 08/01/2018 09:37 AM, Greg KH wrote:
On Tue, Jul 31, 2018 at 03:02:13PM -0700, Mark Salyzyn wrote:
CVE-2018-9363
The buffer length is unsigned at all layers, but gets cast to int and
checked in hidp_process_report and can lead to a buffer overflow.
Switch len parameter to unsigned int to resolve issue.
This affects 3.18 and newer kernels.
Signed-off-by: Mark Salyzyn <salyzyn@xxxxxxxxxxx>
Fixes: a4b1b5877b514b276f0f31efe02388a9c2836728 ("HID: Bluetooth: hidp: make sure input buffers are big enough")
Cc: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Cc: Johan Hedberg <johan.hedberg@xxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
Cc: linux-bluetooth@xxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: security@xxxxxxxxxx
Cc: kernel-team@xxxxxxxxxxx
Nit, you only need to bother security@ if you do not have a fix and need
to figure out one.
Thanks, I thought anything with a CVE was to go there according to
netdev FAQ (dropped security from response list).
Also, you forgot to cc: stable@xxxxxxxxxxxxxxx to be included in older
kernel releases :(
netdev FAQ said to _not_ copy stable, I am so confused ;-{ (added stable
to response list b/c patch is now taken into bluetooth-next)
thanks,
greg k-h
