diff options
| author | Oliver Neukum | 2026-02-09 15:37:20 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2026-03-19 16:08:25 +0100 |
| commit | a41d3d9202e951995cfac6248c565423079c71fa (patch) | |
| tree | 50a9dfca086260eb72a0e1377f9f552d4f01a7a0 /drivers/usb | |
| parent | cd41e0d1df8fcf5eae294657da52b50d1ce03246 (diff) | |
usb: yurex: fix race in probe
commit 7a875c09899ba0404844abfd8f0d54cdc481c151 upstream.
The bbu member of the descriptor must be set to the value
standing for uninitialized values before the URB whose
completion handler sets bbu is submitted. Otherwise there is
a window during which probing can overwrite already retrieved
data.
Cc: stable <stable@kernel.org>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://patch.msgid.link/20260209143720.1507500-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/misc/yurex.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index 70dff0db5354..6d03e689850a 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -272,6 +272,7 @@ static int yurex_probe(struct usb_interface *interface, const struct usb_device_ dev->int_buffer, YUREX_BUF_SIZE, yurex_interrupt, dev, 1); dev->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + dev->bbu = -1; if (usb_submit_urb(dev->urb, GFP_KERNEL)) { retval = -EIO; dev_err(&interface->dev, "Could not submitting URB\n"); @@ -280,7 +281,6 @@ static int yurex_probe(struct usb_interface *interface, const struct usb_device_ /* save our data pointer in this interface device */ usb_set_intfdata(interface, dev); - dev->bbu = -1; /* we can register the device now, as it is ready */ retval = usb_register_dev(interface, &yurex_class); |