| Message ID | 1384260336-5786-1-git-send-email-luis.henriques@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c index 27325f7..03dcd1b 100644 --- a/drivers/staging/ozwpan/ozcdev.c +++ b/drivers/staging/ozwpan/ozcdev.c @@ -150,6 +150,9 @@ ssize_t oz_cdev_write(struct file *filp, const char __user *buf, size_t count, struct oz_app_hdr *app_hdr; struct oz_serial_ctx *ctx; + if (count > sizeof(ei->data) - sizeof(*elt) - sizeof(*app_hdr)) + return -EINVAL; + spin_lock_bh(&g_cdev.lock); pd = g_cdev.active_pd; if (pd)
This is a note to let you know that I have just added a patch titled staging: ozwpan: prevent overflow in oz_cdev_write() to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ From b19a1cc19d7e7b2eba6f5e116d2b51d4091fbdab Mon Sep 17 00:00:00 2001 From: Dan Carpenter <dan.carpenter@oracle.com> Date: Tue, 29 Oct 2013 22:07:47 +0300 Subject: staging: ozwpan: prevent overflow in oz_cdev_write() commit c2c65cd2e14ada6de44cb527e7f1990bede24e15 upstream. We need to check "count" so we don't overflow the ei->data buffer. Reported-by: Nico Golde <nico@ngolde.de> Reported-by: Fabian Yamaguchi <fabs@goesec.de> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/staging/ozwpan/ozcdev.c | 3 +++ 1 file changed, 3 insertions(+) -- 1.8.3.2