Received: by 2002:a25:ef43:0:0:0:0:0 with SMTP id w3csp673639ybm; Wed, 27 May 2020 05:25:36 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyiHV11bdJ0SCO7aXGZOZA86PHVzl21znLGibP6AjhVnk0FvFvw7PuKc4TUMgQL8QySnzA7 X-Received: by 2002:a05:6402:1d98:: with SMTP id dk24mr22801605edb.206.1590582336463; Wed, 27 May 2020 05:25:36 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1590582336; cv=none; d=google.com; s=arc-20160816; b=dq6WX5nv0Mw8D9D7bbsC05wT+3XCwZFXu2Wla1zfzlrgg3we9XFic8C50ZJs1c/Al6 tyK7XVxbe4IaBK+P7AXsHxLJbTCXNYGbTGZeBnWfQJwvzOSbTWTfttrEax2ynf1KS3fy goxVfkAZb8U4A4lyftwok9k2/YETTMeNJePsJPKV5KaamEA99AWzRDmuD5n3nrnyymuh gVpZwaBU7u4EZRlurgWEVcr16HFzs6m5+tqsIDIABpmwQ0c/qYYGE5t3rAJe+X5EHy2m hKTLrj4AQLsVEyUUDU34IZMd0L58ftzqmDu6Sr0VPRRM2/js3HEbd4sZijRljArwDivl TpNg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature; bh=bWc2RhjzhYFoeGzIOp0t00bMitcQ7MX4ewFdu1cUq80=; b=n7qdOmfQgCGi4Um/i4rj/yfLzsP3KqISehzK4C7JoCCZ/1347MIGijqHKSTDTUH1Ho q1T4D+WNe0f9umqca2edEv4u7jfoRqv8Lvq+lttyDpqKI/Yv1vF9DF/2WOVeYjl+0I92 FiB+iuCYAgZ2TsxvjxjyFo+kOKADUYRXdRkNG1lfA00DBfcE+TxnIuRf3eK0kkB6gHbC 7H8HiRRwja7opx2YxkD1nm3EAstgPfWVCxBA+PX8nQW7y64lMRQwWJcdQ249NX91xIdT wnu9xWqIGMliTe6HC2bNeb+NxHft/CrpqC2Oxd2eO/n8foWhk7FDYaups2KZXjBRdbc6 Q0nw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=MxwAzCJO; spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id qq25si1941639ejb.173.2020.05.27.05.25.12; Wed, 27 May 2020 05:25:36 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=MxwAzCJO; spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729365AbgE0MYs (ORCPT + 99 others); Wed, 27 May 2020 08:24:48 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:35616 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729288AbgE0MYs (ORCPT ); Wed, 27 May 2020 08:24:48 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 04RCOhaH005910; Wed, 27 May 2020 07:24:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1590582283; bh=bWc2RhjzhYFoeGzIOp0t00bMitcQ7MX4ewFdu1cUq80=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=MxwAzCJOSvjD+qQ7pWZN4Vm8CUvGlnoACtge2MG7zS2nVx7vwp7RGR/qcDo2x1rla 8nX2M8YOYOo6PVyfQ8JhvYZoY2cE0q+du8uSYd5NsxD7CL3mg9g9lGA2PCA7no2brD SPIGBQJytPsks0ALIb9U0fR21tTpjygbpGStoAOU= Received: from DLEE112.ent.ti.com (dlee112.ent.ti.com [157.170.170.23]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 04RCOhBX130293 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 27 May 2020 07:24:43 -0500 Received: from DLEE100.ent.ti.com (157.170.170.30) by DLEE112.ent.ti.com (157.170.170.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Wed, 27 May 2020 07:24:43 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Wed, 27 May 2020 07:24:43 -0500 Received: from sokoban.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 04RCOYRi101979; Wed, 27 May 2020 07:24:42 -0500 From: Tero Kristo To: , , CC: Subject: [RESEND PATCHv3 5/7] crypto: omap-sham: fix very small data size handling Date: Wed, 27 May 2020 15:24:27 +0300 Message-ID: <20200527122429.14888-6-t-kristo@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200527122429.14888-1-t-kristo@ti.com> References: <20200527122429.14888-1-t-kristo@ti.com> MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org With very small data sizes, the whole data can end up in the xmit buffer. This code path does not set the sg_len properly which causes the core dma framework to crash. Fix by adding the proper size in place. Also, the data length must be a multiple of block-size, so extend the DMA data size while here. Signed-off-by: Tero Kristo --- drivers/crypto/omap-sham.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index 9823d7dfca9c..86949f1ac6a7 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -753,9 +753,11 @@ static int omap_sham_align_sgs(struct scatterlist *sg, if (!sg || !sg->length || !nbytes) { if (bufcnt) { + bufcnt = DIV_ROUND_UP(bufcnt, bs) * bs; sg_init_table(rctx->sgl, 1); sg_set_buf(rctx->sgl, rctx->dd->xmit_buf, bufcnt); rctx->sg = rctx->sgl; + rctx->sg_len = 1; } return 0; -- 2.17.1 -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki