Brooke Basile 471b235863 USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb()
commit 2b74b0a04d upstream.

Some values extracted by ncm_unwrap_ntb() could possibly lead to several
different out of bounds reads of memory.  Specifically the values passed
to netdev_alloc_skb_ip_align() need to be checked so that memory is not
overflowed.

Resolve this by applying bounds checking to a number of different
indexes and lengths of the structure parsing logic.

Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
Signed-off-by: Brooke Basile <brookebasile@gmail.com>
Acked-by: Felipe Balbi <balbi@kernel.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-03 11:24:30 +02:00
2020-06-03 08:19:31 +02:00
2020-08-26 10:31:07 +02:00

Linux kernel
============

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