From mboxrd@z Thu Jan 1 00:00:00 1970 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 99089C77B75 for ; Mon, 8 May 2023 11:38:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235944AbjEHLiJ (ORCPT ); Mon, 8 May 2023 07:38:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236073AbjEHLhy (ORCPT ); Mon, 8 May 2023 07:37:54 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C940C2DD5E for ; Mon, 8 May 2023 04:37:16 -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 dfw.source.kernel.org (Postfix) with ESMTPS id A91EA63372 for ; Mon, 8 May 2023 11:37:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B07B0C433EF; Mon, 8 May 2023 11:37:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683545836; bh=tlBL5eAyzhc85dbQWz/9IbJLu6EJUFszUcMny6Lk7fk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u2EXZ0GwdxRfUFATIMP/zZVim3O0ReleE1k15UZFd0Vk+EB6yMyJPt9MqbZ+9s4v2 KBh61DfRkGImcRjoTm6yKUYrvvOINyYa5gGsHxm//6nFm75L6lLZeGlyP9ELENzU7/ 4SJN82n+6MRHtRAHNkqtzvZkLAV8VuY9fOpyX7lM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Danila Chernetsov , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 5.15 170/371] scsi: megaraid: Fix mega_cmd_done() CMDID_INT_CMDS Date: Mon, 8 May 2023 11:46:11 +0200 Message-Id: <20230508094818.880537541@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094811.912279944@linuxfoundation.org> References: <20230508094811.912279944@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Danila Chernetsov [ Upstream commit 75cb113cd43f06aaf4f1bda0069cfd5b98e909eb ] When cmdid == CMDID_INT_CMDS, the 'cmds' pointer is NULL but is dereferenced below. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 0f2bb84d2a68 ("[SCSI] megaraid: simplify internal command handling") Signed-off-by: Danila Chernetsov Link: https://lore.kernel.org/r/20230317175109.18585-1-listdansp@mail.ru Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/megaraid.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 7dd6dd74d2bc2..6122cc60a8b3d 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -1443,6 +1443,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) */ if (cmdid == CMDID_INT_CMDS) { scb = &adapter->int_scb; + cmd = scb->cmd; list_del_init(&scb->list); scb->state = SCB_FREE; -- 2.39.2