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(parent: 2ecefa0) | patch
tpm: fix response size validation in tpm_get_random()
authorJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Mon, 3 Sep 2018 01:01:26 +0000 (04:01 +0300)
committerJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Fri, 5 Oct 2018 10:47:33 +0000 (13:47 +0300)
commit84b59f6487d82d3ab4247a099aba66d4d17e8b08
treea028dd73b36a47922eb1867bd6ca95bf0da6a784tree | snapshot
parent2ecefa0a15fd0ef88b9cd5d15ceb813008136431commit | diff
tpm: fix response size validation in tpm_get_random()

When checking whether the response is large enough to be able to contain
the received random bytes in tpm_get_random() and tpm2_get_random(),
they fail to take account the header size, which should be added to the
minimum size. This commit fixes this issue.

Cc: stable@vger.kernel.org
Fixes: c659af78eb7b ("tpm: Check size of response before accessing data")
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
drivers/char/tpm/tpm-interface.c diff | blob | history
drivers/char/tpm/tpm2-cmd.c diff | blob | history
Domain: System / Kernel;