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Commit c303e0e8 authored by Thomas Bourgoin's avatar Thomas Bourgoin Committed by Greg Kroah-Hartman
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crypto: stm32 - fix loop iterating through scatterlist for DMA



commit d9c83f71eeceed2cb54bb78be84f2d4055fd9a1f upstream.

We were reading the length of the scatterlist sg after copying value of
tsg inside.
So we are using the size of the previous scatterlist and for the first
one we are using an unitialised value.
Fix this by copying tsg in sg[0] before reading the size.

Fixes : 8a1012d3 ("crypto: stm32 - Support for STM32 HASH module")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarThomas Bourgoin <thomas.bourgoin@foss.st.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 89312657
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