Re: [PATCH net] hso: fix NULL-deref on tty open

From
David Miller <davem@davemloft.net>
Date
2019-10-02 01:08:19
Also in
linux-usb, lkml
Reply to
Johan Hovold, 2019-09-30
From: Johan Hovold <johan@kernel.org>
Date: Mon, 30 Sep 2019 17:12:41 +0200

Fix NULL-pointer dereference on tty open due to a failure to handle a
missing interrupt-in endpoint when probing modem ports:

	BUG: kernel NULL pointer dereference, address: 0000000000000006
	...
	RIP: 0010:tiocmget_submit_urb+0x1c/0xe0 [hso]
	...
	Call Trace:
	hso_start_serial_device+0xdc/0x140 [hso]
	hso_serial_open+0x118/0x1b0 [hso]
	tty_open+0xf1/0x490

Fixes: 542f54823614 ("tty: Modem functions for the HSO driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Applied, thanks.
Thread (2 messages) 2 messages, 2 authors, last reply 2019-10-02
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