linux-kernel - [ 54/56] isci: fix isci_pci_probe() generates warning on efi failure path

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20121004211158.258739023@linuxfoundation.org>
Date:	Thu,  4 Oct 2012 14:16:15 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	alan@...rguk.ukuu.org.uk, Don Morris <don.morris@...com>,
	Dan Williams <dan.j.williams@...el.com>
Subject: [ 54/56] isci: fix isci_pci_probe() generates warning on efi failure path

3.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Williams <dan.j.williams@...el.com>

commit 6d70a74ffd616073a68ae0974d98819bfa8e6da6 upstream.

The oem parameter image embedded in the efi variable is at an offset
from the start of the variable.  However, in the failure path we try to
free the 'orom' pointer which is only valid when the paramaters are
being read from the legacy option-rom space.

Since failure to load the oem parameters is unlikely and we keep the
memory around in the success case just defer all de-allocation to devm.

Reported-by: Don Morris <don.morris@...com>
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/isci/init.c       |    1 -
 drivers/scsi/isci/probe_roms.c |    1 -
 2 files changed, 2 deletions(-)

--- a/drivers/scsi/isci/init.c
+++ b/drivers/scsi/isci/init.c
@@ -644,7 +644,6 @@ static int __devinit isci_pci_probe(stru
 						orom->hdr.version)) {
 			dev_warn(&pdev->dev,
 				 "[%d]: invalid oem parameters detected, falling back to firmware\n", i);
-			devm_kfree(&pdev->dev, orom);
 			orom = NULL;
 			break;
 		}
--- a/drivers/scsi/isci/probe_roms.c
+++ b/drivers/scsi/isci/probe_roms.c
@@ -104,7 +104,6 @@ struct isci_orom *isci_request_oprom(str
 
 	if (i >= len) {
 		dev_err(&pdev->dev, "oprom parse error\n");
-		devm_kfree(&pdev->dev, rom);
 		rom = NULL;
 	}
 	pci_unmap_biosrom(oprom);


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/