This is a note to let you know that I've just added the patch titled
usb: gadget: gadgetfs: Free memory allocated by memdup_user()
to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From b44be2462dbe3e23f0aedff64de52a1e8e47a1cd Mon Sep 17 00:00:00 2001
From: Mario Schuknecht <mario.schuknecht@xxxxxxxxxxxxxxx>
Date: Tue, 16 Dec 2014 08:58:57 +0100
Subject: usb: gadget: gadgetfs: Free memory allocated by memdup_user()
Commit 3b74c73f8d6f053f422e85fce955b61fb181cfe7 switched over to memdup_user()
in ep_write() function and removed kfree (kbuf).
memdup_user() function allocates memory which is never freed.
Fixes: 3b74c73 (usb: gadget: inode: switch over to memdup_user())
Cc: <stable@xxxxxxxxxxxxxxx> # v3.15+
Signed-off-by: Mario Schuknecht <mario.schuknecht@xxxxxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---
drivers/usb/gadget/legacy/inode.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index c744e4975d74..08048613eed6 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -449,6 +449,7 @@ ep_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
data->name, len, (int) value);
free1:
mutex_unlock(&data->lock);
+ kfree (kbuf);
return value;
}
--
2.2.1
--
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