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    Subject[PATCH 4.12 27/27] crypto: drbg - Fixes panic in wait_for_completion call
    Date
    4.12-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Stephan Mueller <smueller@chronox.de>

    commit b61929c654f2e725644935737c4c1ea9c741e2f8 upstream.

    Initialise ctr_completion variable before use.

    Cc: <stable@vger.kernel.org>
    Signed-off-by: Harsh Jain <harshjain.prof@gmail.com>
    Signed-off-by: Stephan Mueller <smueller@chronox.de>
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    crypto/drbg.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/crypto/drbg.c
    +++ b/crypto/drbg.c
    @@ -1691,6 +1691,7 @@ static int drbg_init_sym_kernel(struct d
    return PTR_ERR(sk_tfm);
    }
    drbg->ctr_handle = sk_tfm;
    + init_completion(&drbg->ctr_completion);

    req = skcipher_request_alloc(sk_tfm, GFP_KERNEL);
    if (!req) {

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