This is a note to let you know that I've just added the patch titled
usb: musb: tusb6010: uninitialized data in
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 517c7bf99bad3d6b9360558414aae634b7472d80 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Thu, 16 Sep 2021 16:57:37 +0300
Subject: usb: musb: tusb6010: uninitialized data in
tusb_fifo_write_unaligned()
This is writing to the first 1 - 3 bytes of "val" and then writing all
four bytes to musb_writel(). The last byte is always going to be
garbage. Zero out the last bytes instead.
Fixes: 550a7375fe72 ("USB: Add MUSB and TUSB support")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210916135737.GI25094@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/musb/tusb6010.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index c42937692207..c968ecda42aa 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -190,6 +190,7 @@ tusb_fifo_write_unaligned(void __iomem *fifo, const u8 *buf, u16 len)
}
if (len > 0) {
/* Write the rest 1 - 3 bytes to FIFO */
+ val = 0;
memcpy(&val, buf, len);
musb_writel(fifo, 0, val);
}
--
2.33.0
