From: Felipe Balbi <balbi@kernel.org>
To: Krzysztof Opasiak <kopasiak90@gmail.com>
Cc: gregkh@linuxfoundation.org, k.opasiak@samsung.com,
eu@felipetonello.com, zonque@gmail.com, david@lechnology.com,
linux-usb@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH 4/4] usb: gadget: f_hid: fix: Move IN request allocation to set_alt()
Date: Mon, 23 Jan 2017 13:33:43 +0200 [thread overview]
Message-ID: <874m0q80yw.fsf@linux.intel.com> (raw)
In-Reply-To: <1484848530-13040-4-git-send-email-k.opasiak@samsung.com>
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Krzysztof Opasiak <kopasiak90@gmail.com> writes:
> Since commit ba1582f22231 ("usb: gadget: f_hid: use alloc_ep_req()")
> we cannot allocate any requests in bind() as we check if we should
> align request buffer based on endpoint descriptor which is assigned
> in set_alt().
>
> Allocating request in bind() function causes a NULL pointer
> dereference.
>
> This commit moves allocation of IN request from bind() to set_alt()
> to prevent this issue.
>
> Fixes: ba1582f22231 ("usb: gadget: f_hid: use alloc_ep_req()")
> Cc: stable@vger.kernel.org
> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
please rebase on testing/next:
checking file drivers/usb/gadget/function/f_hid.c
Hunk #1 succeeded at 338 (offset 54 lines).
Hunk #2 succeeded at 348 (offset 54 lines).
Hunk #3 succeeded at 363 (offset 54 lines).
Hunk #4 succeeded at 376 (offset 54 lines).
Hunk #5 succeeded at 611 (offset 54 lines).
Hunk #6 succeeded at 648 (offset 54 lines).
Hunk #7 FAILED at 611.
Hunk #8 succeeded at 686 (offset 54 lines).
Hunk #9 succeeded at 765 (offset 54 lines).
Hunk #10 succeeded at 802 (offset 65 lines).
Hunk #11 succeeded at 1068 (offset 65 lines).
1 out of 11 hunks FAILED
previous 3 patches applied fine, though.
--
balbi
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next prev parent reply other threads:[~2017-01-23 11:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-19 17:55 [PATCH 1/4] usb: gadget: f_hid: fix: Free out requests Krzysztof Opasiak
2017-01-19 17:55 ` [PATCH 2/4] usb: gadget: f_hid: fix: Prevent accessing released memory Krzysztof Opasiak
2017-01-19 17:55 ` [PATCH 3/4] usb: gadget: f_hid: Use spinlock instead of mutex Krzysztof Opasiak
2017-01-19 17:55 ` [PATCH 4/4] usb: gadget: f_hid: fix: Move IN request allocation to set_alt() Krzysztof Opasiak
2017-01-20 20:28 ` David Lechner
2017-01-23 11:33 ` Felipe Balbi [this message]
2017-01-24 2:27 ` [PATCH v2] " Krzysztof Opasiak
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