crypto: ccree - don't map MAC key on stack
authorGilad Ben-Yossef <gilad@benyossef.com>
Thu, 18 Apr 2019 13:39:04 +0000 (16:39 +0300)
committerHerbert Xu <herbert@gondor.apana.org.au>
Thu, 25 Apr 2019 07:38:15 +0000 (15:38 +0800)
commit874e163759f27e0a9988c5d1f4605e3f25564fd2
tree80fd12e933b85b1606b6db02795cec35d8f90bee
parent18dd574acdb70c9c5bc3878d4e98be88259a2fe3
crypto: ccree - don't map MAC key on stack

The MAC hash key might be passed to us on stack. Copy it to
a slab buffer before mapping to gurantee proper DMA mapping.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/ccree/cc_hash.c