From patchwork Thu Apr 14 13:09:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 562569 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C7301C433FE for ; Thu, 14 Apr 2022 13:22:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244300AbiDNNYj (ORCPT ); Thu, 14 Apr 2022 09:24:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48000 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244087AbiDNNXt (ORCPT ); Thu, 14 Apr 2022 09:23:49 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE6669A9B3; Thu, 14 Apr 2022 06:18:45 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 1596ECE299A; Thu, 14 Apr 2022 13:18:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F400C385A5; Thu, 14 Apr 2022 13:18:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649942322; bh=MVbaOj3gpp4qHI/UTCdDr8GZT2f5JlweaWvLtPqB8zU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IfaUL7fKJyAA0h/YG98G0V4Sljm4YoLwSNKFgNgIrQebjZnodBlorPmpPWcuRlebU B2LnOfltOLRIlBXxxO17EAESFSv1nSLTJWPMqZg93kLK2ik/1Z8YY05AbGLZSVGZKI GtB3FZt+m0e5sKfw/hxECWzBaVfgHCy97qv+cFXQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Corentin Labbe , Herbert Xu , Sasha Levin Subject: [PATCH 4.19 067/338] crypto: authenc - Fix sleep in atomic context in decrypt_tail Date: Thu, 14 Apr 2022 15:09:30 +0200 Message-Id: <20220414110840.807541737@linuxfoundation.org> X-Mailer: git-send-email 2.35.2 In-Reply-To: <20220414110838.883074566@linuxfoundation.org> References: <20220414110838.883074566@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Herbert Xu [ Upstream commit 66eae850333d639fc278d6f915c6fc01499ea893 ] The function crypto_authenc_decrypt_tail discards its flags argument and always relies on the flags from the original request when starting its sub-request. This is clearly wrong as it may cause the SLEEPABLE flag to be set when it shouldn't. Fixes: 92d95ba91772 ("crypto: authenc - Convert to new AEAD interface") Reported-by: Corentin Labbe Signed-off-by: Herbert Xu Tested-by: Corentin Labbe Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- crypto/authenc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/crypto/authenc.c b/crypto/authenc.c index 3ee10fc25aff..02d4d8517449 100644 --- a/crypto/authenc.c +++ b/crypto/authenc.c @@ -268,7 +268,7 @@ static int crypto_authenc_decrypt_tail(struct aead_request *req, dst = scatterwalk_ffwd(areq_ctx->dst, req->dst, req->assoclen); skcipher_request_set_tfm(skreq, ctx->enc); - skcipher_request_set_callback(skreq, aead_request_flags(req), + skcipher_request_set_callback(skreq, flags, req->base.complete, req->base.data); skcipher_request_set_crypt(skreq, src, dst, req->cryptlen - authsize, req->iv);