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KASAN reporting bug in ath6kl

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Hi,

I am looking at this report:

Title:              general protection fault in
ath6kl_usb_alloc_urb_from_pipe
Last occurred:      0 days ago
Reported:           102 days ago
Branches:           Mainline (with usb-fuzzer patches)
Dashboard link:     https://syzkaller.appspot.com/bug?id=cd8b9cfe50a0bf
36ee19eda2d7e2e06843dfbeaf
Original thread:    https://lkml.kernel.org/lkml/0000000000008e82510586
5615e3@xxxxxxxxxx/T/#u

This bug has a C reproducer.

No one replied to the original thread for this bug.

This looks like a bug in a net/wireless USB driver.

If you fix this bug, please add the following tag to the commit:
    Reported-by: syzbot+ead4037ec793e025e66f@xxxxxxxxxxxxxxxxxxxxxxxxx

--

It looks like a bug in
static int ath6kl_usb_setup_pipe_resources(struct ath6kl_usb *ar_usb)
to me, which happily does nothing if the device has no endpoints.
THis needs sanity checking, but it looks like the driver
really uses 8 endpoints. Can you confirm that all 8 of them
are indeed needed?

	Regards
		Oliver




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