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 the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-gadget-gadgetfs-free-memory-allocated-by-memdup_user.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>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()
From: Mario Schuknecht <mario.schuknecht@xxxxxxxxxxxxxxx>
commit b44be2462dbe3e23f0aedff64de52a1e8e47a1cd upstream.
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())
Signed-off-by: Mario Schuknecht <mario.schuknecht@xxxxxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/legacy/inode.c | 1 +
1 file changed, 1 insertion(+)
--- 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 __
data->name, len, (int) value);
free1:
mutex_unlock(&data->lock);
+ kfree (kbuf);
return value;
}
Patches currently in stable-queue which might be from mario.schuknecht@xxxxxxxxxxxxxxx are
queue-3.18/usb-gadget-gadgetfs-free-memory-allocated-by-memdup_user.patch
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