5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Prashanth K <prashanth.k@xxxxxxxxxxxxxxxx>
commit 8e812e9355a6f14dffd54a33d951ca403b9732f5 upstream.
If the USB configuration is not valid, then avoid checking for
bmAttributes to prevent null pointer deference.
Cc: stable <stable@xxxxxxxxxx>
Fixes: 40e89ff5750f ("usb: gadget: Set self-powered based on MaxPower and bmAttributes")
Signed-off-by: Prashanth K <prashanth.k@xxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20250224085604.417327-1-prashanth.k@xxxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/composite.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1005,7 +1005,7 @@ static int set_config(struct usb_composi
usb_gadget_set_remote_wakeup(gadget, 0);
done:
if (power > USB_SELF_POWER_VBUS_MAX_DRAW ||
- !(c->bmAttributes & USB_CONFIG_ATT_SELFPOWER))
+ (c && !(c->bmAttributes & USB_CONFIG_ATT_SELFPOWER)))
usb_gadget_clear_selfpowered(gadget);
else
usb_gadget_set_selfpowered(gadget);
