This is a note to let you know that I've just added the patch titled

usb: gadget: f_fs: Fix ExtCompat descriptor validation

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: usb-gadget-f_fs-fix-extcompat-descriptor-validation.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Wed Dec 6 17:39:55 CET 2017

From: Vincent Pelletier plr.vincent@gmail.com Date: Thu, 15 Dec 2016 12:47:42 +0000 Subject: usb: gadget: f_fs: Fix ExtCompat descriptor validation

From: Vincent Pelletier plr.vincent@gmail.com

[ Upstream commit 354bc45bf329494ef6051f3229ef50b9e2a7ea2a ]

Reserved1 is documented as expected to be set to 0, but this test fails when it it set to 0. Reverse the condition.

Signed-off-by: Vincent Pelletier plr.vincent@gmail.com Signed-off-by: Felipe Balbi felipe.balbi@linux.intel.com Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/gadget/function/f_fs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -2263,7 +2263,7 @@ static int __ffs_data_do_os_desc(enum ff

if (len < sizeof(*d) || d->bFirstInterfaceNumber >= ffs->interfaces_count || - !d->Reserved1) + d->Reserved1) return -EINVAL; for (i = 0; i < ARRAY_SIZE(d->Reserved2); ++i) if (d->Reserved2[i])

Patches currently in stable-queue which might be from plr.vincent@gmail.com are

queue-4.9/usb-gadget-f_fs-fix-extcompat-descriptor-validation.patch