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[CVE,2/2] cpqarray: fix info leak in ida_locked_ioctl()

Message ID 1380643504-20774-3-git-send-email-luis.henriques@canonical.com
State New
Headers show

Commit Message

Luis Henriques Oct. 1, 2013, 4:05 p.m. UTC 
From: Dan Carpenter <dan.carpenter@oracle.com>

BugLink: http://bugs.launchpad.net/bugs/1188355

CVE-2013-2147

The pciinfo struct has a two byte hole after ->dev_fn so stack
information could be leaked to the user.

This was assigned CVE-2013-2147.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 627aad1c01da6f881e7f98d71fd928ca0c316b1a)
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/block/cpqarray.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 6422651..f9caa45 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -1181,6 +1181,7 @@  out_passthru:
 		ida_pci_info_struct pciinfo;
 
 		if (!arg) return -EINVAL;
+		memset(&pciinfo, 0, sizeof(pciinfo));
 		pciinfo.bus = host->pci_dev->bus->number;
 		pciinfo.dev_fn = host->pci_dev->devfn;
 		pciinfo.board_id = host->board_id;