summaryrefslogtreecommitdiffstats
path: root/crypto/Kconfig
diff options
context:
space:
mode:
authorNeil Horman <nhorman@tuxdriver.com>2013-09-17 14:33:11 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2013-09-23 22:02:23 +0200
commit714b33d15130cbb5ab426456d4e3de842d6c5b8a (patch)
tree038690f74a44de6a5c6604e5732aa05633773e6f /crypto/Kconfig
parentARM: tegra: remove tegra_chip_uid() (diff)
downloadlinux-714b33d15130cbb5ab426456d4e3de842d6c5b8a.tar.xz
linux-714b33d15130cbb5ab426456d4e3de842d6c5b8a.zip
crypto: ansi_cprng - Fix off by one error in non-block size request
Stephan Mueller reported to me recently a error in random number generation in the ansi cprng. If several small requests are made that are less than the instances block size, the remainder for loop code doesn't increment rand_data_valid in the last iteration, meaning that the last bytes in the rand_data buffer gets reused on the subsequent smaller-than-a-block request for random data. The fix is pretty easy, just re-code the for loop to make sure that rand_data_valid gets incremented appropriately Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Reported-by: Stephan Mueller <stephan.mueller@atsec.com> CC: Stephan Mueller <stephan.mueller@atsec.com> CC: Petr Matousek <pmatouse@redhat.com> CC: Herbert Xu <herbert@gondor.apana.org.au> CC: "David S. Miller" <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/Kconfig')
0 files changed, 0 insertions, 0 deletions