Files
linux/crypto
Eric Biggers 6db4341017 crypto: adiantum - initialize crypto_spawn::inst
crypto_grab_*() doesn't set crypto_spawn::inst, so templates must set it
beforehand.  Otherwise it will be left NULL, which causes a crash in
certain cases where algorithms are dynamically loaded/unloaded.  E.g.
with CONFIG_CRYPTO_CHACHA20_X86_64=m, the following caused a crash:

    insmod chacha-x86_64.ko
    python -c 'import socket; socket.socket(socket.AF_ALG, 5, 0).bind(("skcipher", "adiantum(xchacha12,aes)"))'
    rmmod chacha-x86_64.ko
    python -c 'import socket; socket.socket(socket.AF_ALG, 5, 0).bind(("skcipher", "adiantum(xchacha12,aes)"))'

Fixes: 059c2a4d8e ("crypto: adiantum - add Adiantum support")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-01-10 21:37:31 +08:00
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