crypto: arm64/aes-ccm - fix bugs in non-NEON fallback routine

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Commit 5092fcf349 ("crypto: arm64/aes-ce-ccm: add non-SIMD generic
fallback") introduced C fallback code to replace the NEON routines
when invoked from a context where the NEON is not available (i.e.,
from the context of a softirq taken while the NEON is already being
used in kernel process context)

Fix two logical flaws in the MAC calculation of the associated data.

Reported-by: Eric Biggers <ebiggers@kernel.org>
Fixes: 5092fcf349 ("crypto: arm64/aes-ce-ccm: add non-SIMD generic fallback")
Cc: stable@vger.kernel.org
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Ard Biesheuvel 2019-01-24 17:33:46 +01:00 • committed by Herbert Xu

parent eaf46edf6e

commit 969e2f59d5

1 changed files with 1 additions and 3 deletions

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arch/arm64/crypto/aes-ce-ccm-glue.c

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