* KASAN reporting bug in ath6kl
@ 2019-07-29 12:58 Oliver Neukum
0 siblings, 0 replies; only message in thread
From: Oliver Neukum @ 2019-07-29 12:58 UTC (permalink / raw)
To: Kalle Valo; +Cc: linux-usb, linux-wireless
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@google.com/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@syzkaller.appspotmail.com
--
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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