From patchwork Mon Aug 26 13:01:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Edward Adam Davis X-Patchwork-Id: 13777917 Received: from out203-205-221-231.mail.qq.com (out203-205-221-231.mail.qq.com [203.205.221.231]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BBFC17E1; Mon, 26 Aug 2024 13:02:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.205.221.231 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724677324; cv=none; b=nKwzU032D2x2+FXT8pUkWcYdmzMSptfg/wGLKJr1uPXn2pXgFa78qKBgJ5vp8Cf3SJTVxHXdUVTIzTJMmn3stb431EbFM96kP24vhFcC84oHk4T77m5RTLdaNtdWtS3NYRoCH5U/zWR6VtN7OUC3YetxzBwFm9UuC3nXw5On4I4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724677324; c=relaxed/simple; bh=ccZU3a24KVP9awOdU/7n6f47/VRFRXbCEIAY3d6o7uM=; h=Message-ID:From:To:Cc:Subject:Date:In-Reply-To:References: MIME-Version; b=aKmyz7LXaLfdJZX+i+yBahaeN5GG8n2jvLLVZvqLfeuRVNJg2SURjjyKYKcInBleRwqHqCSQLW8t3LBr6AbSpweijtzZzIiMz9Zq/bdzwlqGa6xjJ6PlRgG4SDZqy7rxTJ7+r4yA1O3sybyQTst8D/jOOKkCteQTGsMwgoy8v7k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com; spf=pass smtp.mailfrom=qq.com; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b=xy6hpfPj; arc=none smtp.client-ip=203.205.221.231 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qq.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b="xy6hpfPj" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1724677318; bh=bYvkknN4lY/PzXuYKt7WBFdDB1eWxCqDPPaUzeINxOc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=xy6hpfPjzkgMBvmaUBrPaycYp9nNEGhhRSKOG4/JqoRZ3CrVGRQMqozXEsu0VguLx MqcdHp/oyz17Orx1w9Dl5kXaVjjviQqHEdruAXsrW9fK+UB4WNs+eGDVlIMtlkwlXk 1UE0/tkCgR4v/W30NlEuW/QLEnY9PYFoFW4degZo= Received: from pek-lxu-l1.wrs.com ([111.198.225.4]) by newxmesmtplogicsvrsza15-1.qq.com (NewEsmtp) with SMTP id 771A2A8; Mon, 26 Aug 2024 21:01:55 +0800 X-QQ-mid: xmsmtpt1724677315tf7m5rx88 Message-ID: X-QQ-XMAILINFO: M1rD3f8svNzn/LR6TrDyrzWLVwUKg8NNpXgZaDAVYEFwLZZeMd3vzd46K6TEU0 As715XwSA+fYEH8z4PRxoThPD3Nh31bZFAvQrrPiqvl+/dxz6GtV0d9dTksZNhAnkhkSNZOrxBfZ Kcc4AHDgNWrIUmPo9BysEwTZvR3ZuXlTmEeOnHxUHuvlC4MeTuNL8jNUSU3UPwSi4Qm+rrx/I1ES ta7c01eQUbDsl93DrbeTCi6R7BbOJZKHaKBfOoTJragwAokkJYl1rui8yHWUw7qe74jHJCn/tVE2 lTs+XVtaovVF8Vuw2lnjaO1n1yNAX0ddk1buNnTzeLUPqe/2aQOUFln+c2NoQGabjwUKYkOAQHRm M8CvOx0kincHPdexwMCaEg5V/Q9F0FFNY6WixYmWUm3mBHrFZtTbam2RQ78HvoTbt7CIAVNkTOn0 EOcFduoxGpEySImtLsVjJITec9hUSf/+aMyggh1dKuB6ZhH/DO4F9euxl0DRYdYGGavzeqRPbAhB f3TFFx14+0P8txfU5kCGZVcpWFb3+DKF0TlHUiziuahm2jqzQ8pMeim7M7bSfwvS8QDrYFOqTYRQ K0A2dCOC+8jX2eIgk5quJ1rh1i7PMMw0BvO3cR690l8NLOkZkjcs1ZghB1Qsm1yU4h3PWMkVYVHM 6IjKrHXh7pOYastXR6ZzxbPE0j+anASEDGcyhyhi8o4ogHmBT2/5tpsHg2Z6Flh21oTn3TBuDiPa LcZywsT2HENQJdC0q/CZUhTYBAh38wPPtKc0RBro3xYQw949HUHO8EP2YLeRX2XJHX3XDKS/hewb Vxc1Lx0fMOf8KFWdzPXN1vhSDpJvbjOV5rtMRyc5RQ14mw+eAQ8GJ3VxP3GA2hcs4mSrRTyc1MOZ 5zDfBTZ3Ygglx6b9IONyiAl7aKXaa3Gpa0MVzCQAExEuEKtSVYhYioqI2PeDL3B0xdLRfCok5oEK v33Diw5YmdVYoxtfmI/1+SCUEduPx2ZqYPYQpO58ziMuIFdgF385rUCWd3DnReMMjf1/N1GHUg78 Azmt4pKXYjWFlydpH3xIAdCSnWvuxgZAU1lzwdDfZeoz5/4B8pOiDjWonjo7c= X-QQ-XMRINFO: NyFYKkN4Ny6FSmKK/uo/jdU= From: Edward Adam Davis To: gregkh@linuxfoundation.org Cc: eadavis@qq.com, kvalo@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, sergei.shtylyov@gmail.com, syzbot+92c6dd14aaa230be6855@syzkaller.appspotmail.com, syzkaller-bugs@googlegroups.com Subject: [PATCH V4 1/2] wifi: ath6kl: Replace ath6kl_usb_submit_ctrl_in with usb_control_msg_recv Date: Mon, 26 Aug 2024 21:01:55 +0800 X-OQ-MSGID: <20240826130154.2706792-3-eadavis@qq.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: <2024082631-upward-zips-f7b8@gregkh> References: <2024082631-upward-zips-f7b8@gregkh> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 ath6kl_usb_submit_ctrl_in() did not take into account the situation where the length of the data read from the device is not equal to the len, and such missing judgments will result in subsequent code using incorrect data. usb_control_msg_recv() handles the abnormal length of the returned data, so using it directly can fix this warning. Reported-by: syzbot+92c6dd14aaa230be6855@syzkaller.appspotmail.com Signed-off-by: Edward Adam Davis --- V4: Adjust indentation style drivers/net/wireless/ath/ath6kl/usb.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c index 5220809841a6..0458b5a078e1 100644 --- a/drivers/net/wireless/ath/ath6kl/usb.c +++ b/drivers/net/wireless/ath/ath6kl/usb.c @@ -1027,9 +1027,10 @@ static int ath6kl_usb_bmi_read(struct ath6kl *ar, u8 *buf, u32 len) int ret; /* get response */ - ret = ath6kl_usb_submit_ctrl_in(ar_usb, - ATH6KL_USB_CONTROL_REQ_RECV_BMI_RESP, - 0, 0, buf, len); + ret = usb_control_msg_recv(ar_usb->udev, 0, + ATH6KL_USB_CONTROL_REQ_RECV_BMI_RESP, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, 0, buf, len, 2000, GFP_KERNEL); if (ret) { ath6kl_err("Unable to read the bmi data from the device: %d\n", ret);