From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 141CC31B10B; Sat, 12 Sep 2026 14:04:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789221896; cv=none; b=UdrolS14/goU4nxg3895GGasedqbeaZ6gDUUzkO6SajQCNkFWKopc8s2VWLzOYyG91KhMFsvOETYQps7SDjPzQAtAg7nKfsZilGkHIDk3YFGOPu514bytarqzV7b7WyOp2zxgVL/e5BNAymc3N4sxRrOQF7rXr2tFljSMYMD9PE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789221896; c=relaxed/simple; bh=aGYB7nv+UfmDYImSrUZWWYG2PbHsRIH7QxRtEhO75no=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QvM0rNpPZRA5QLr6oMLd1bo0pGNy1np8kUdI4eVeblYlivz0cM1/Y96UjREelzuWoyvoAADPNMzbUhfsh9/Q40hFh6uWE0w03g4JRukwoJlqKcvfpCfqTYUgHK+5j97JXYBQsj1lTybri4iDTNDBP1J7I571EPCFiyHbGMxjlGI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=tW06WhCI; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="tW06WhCI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 82AA31F000FF; Sat, 12 Sep 2026 14:04:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789221894; bh=Ia5SmPo/WS6WgTxstPyloKr1j5hwMWBEQs+47hlN4Zg=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=tW06WhCI9g+zxS1/kGN7Suv8QXsrpkndGIt5iBtSvPDkR0DUwnEDwtMXap6+4gtkD vpu/zkqkXdJ643l3AReboNuo2rW7PyohurtXMo0/wOmHIsbk7LNIAHVWvn5BjDpm2R mxkTUwvZfwSLH8P1icSoPW76aPxkbFwTclv9ovQE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nilesh Javali , Hannes Reinecke , "Martin K. Petersen (Oracle)" Subject: [PATCH 6.6 0475/1424] scsi: qla2xxx: edif: Fix NULL pointer deref in RX SA delete check Date: Sat, 12 Sep 2026 08:48:27 +0200 Message-ID: <20260912065617.921530600@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.279695368@linuxfoundation.org> References: <20260912065607.279695368@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nilesh Javali commit c20ee380ca59c5a8646750c4849969a815924e2e upstream. qla_chk_edif_rx_sa_delete_pending() obtains the SCSI command via GET_CMD_SP(sp) and immediately dereferences cmd->sc_data_direction. That command pointer can be NULL: the firmware may post a status completion for a command that has already been returned or aborted. The caller qla2x00_status_entry() acknowledges this on the very same status path, re-fetching GET_CMD_SP(sp) and bailing out with the "Command already returned" message when it is NULL -- but that check runs only after qla_chk_edif_rx_sa_delete_pending() has already dereferenced the pointer, so a NULL cmd crashes the kernel in interrupt context. Return early when cmd is NULL, before touching cmd->sc_data_direction. Fixes: dd30706e73b7 ("scsi: qla2xxx: edif: Add key update") Cc: stable@vger.kernel.org Signed-off-by: Nilesh Javali Reviewed-by: Hannes Reinecke Link: https://patch.msgid.link/20260723050413.3897522-47-njavali@marvell.com Signed-off-by: Martin K. Petersen (Oracle) Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/qla2xxx/qla_edif.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/scsi/qla2xxx/qla_edif.c +++ b/drivers/scsi/qla2xxx/qla_edif.c @@ -3491,6 +3491,9 @@ void qla_chk_edif_rx_sa_delete_pending(s struct scsi_cmnd *cmd = GET_CMD_SP(sp); uint32_t handle; + if (!cmd) + return; + handle = (uint32_t)LSW(sts24->handle); /* find out if this status iosb is for a scsi read */