From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A793EFBF6 for ; Mon, 15 May 2023 17:56:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 03DEEC433D2; Mon, 15 May 2023 17:56:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684173413; bh=XdshbZWlgobCcIvapx31NWgFuRhWYAo7FFhKaZrIq/0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RSZKqwTSA479F48uRcWYh1pRxkMISI6xXCxfeL4zY7Qvu66Jjqsq4FZt7S8KYqANi c4eX9oi/JJIgZiMXSVKWion3uzCVjHv2CYLRqoy41KVZRVJOLJSkTLASO7edD6XowA wB171/bEbPKDieDYZz8vARultuCy8elwoQr23KTY= 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 5.4 087/282] scsi: megaraid: Fix mega_cmd_done() CMDID_INT_CMDS Date: Mon, 15 May 2023 18:27:45 +0200 Message-Id: <20230515161724.876373582@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161722.146344674@linuxfoundation.org> References: <20230515161722.146344674@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 8b1ba690039b7..8c88190673c2a 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -1439,6 +1439,7 @@ 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