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Commit a5dfefb1 authored by Gilad Ben-Yossef's avatar Gilad Ben-Yossef Committed by Herbert Xu
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crypto: drbg - wait for crypto op not signal safe



drbg_kcapi_sym_ctr() was using wait_for_completion_interruptible() to
wait for completion of async crypto op but if a signal occurs it
may return before DMA ops of HW crypto provider finish, thus
corrupting the output buffer.

Resolve this by using wait_for_completion() instead.

Reported-by: default avatarEric Biggers <ebiggers3@gmail.com>
Signed-off-by: default avatarGilad Ben-Yossef <gilad@benyossef.com>
CC: stable@vger.kernel.org
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent e68368ae
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