iwlwifi: fw: harden page loading code

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The page loading code trusts the data provided in the firmware images
a bit too much and may cause a buffer overflow or copy unknown data if
the block sizes don't match what we expect.

To prevent potential problems, harden the code by checking if the
sizes we are copying are what we expect.

Cc: stable@vger.kernel.org
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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This commit is contained in:

Luca Coelho 2018-02-13 11:09:40 +02:00

parent 1e5b775031

commit 9039d98581

1 changed files with 41 additions and 8 deletions

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49

drivers/net/wireless/intel/iwlwifi/fw/paging.c

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