From: Stephan Mueller <smueller@chronox.de>
Date: Fri, 26 May 2017 10:11:31 +0000 (+0200)
Subject: crypto: drbg - Fixes panic in wait_for_completion call
X-Git-Tag: archive/raspbian/4.9.30-2+deb9u2+rpi1~4^2~33
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=2e1eeb01cfcab78a2f79e7ec688e70db47f5c52a;p=linux-4.9.git

crypto: drbg - Fixes panic in wait_for_completion call

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>
---

diff --git a/crypto/drbg.c b/crypto/drbg.c
index 123d211efa12..8cac3d31a5f8 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1691,6 +1691,7 @@ static int drbg_init_sym_kernel(struct drbg_state *drbg)
 		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) {