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Date: Sun, 6 Feb 2022 18:48:56 +0100 From: Oleksij Rempel <linux@...pel-privat.de> To: Pavel Skripkin <paskripkin@...il.com>, davem@...emloft.net, kuba@...nel.org, andrew@...n.ch, oneukum@...e.com, robert.foss@...labora.com, freddy@...x.com.tw Cc: linux-usb@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, syzbot+6ca9f7867b77c2d316ac@...kaller.appspotmail.com Subject: Re: [PATCH RFT] net: asix: add proper error handling of usb read errors Am 06.02.22 um 18:23 schrieb Pavel Skripkin: > On 1/5/22 16:19, Pavel Skripkin wrote: >> Syzbot once again hit uninit value in asix driver. The problem still the >> same -- asix_read_cmd() reads less bytes, than was requested by caller. >> >> Since all read requests are performed via asix_read_cmd() let's catch >> usb related error there and add __must_check notation to be sure all >> callers actually check return value. >> >> So, this patch adds sanity check inside asix_read_cmd(), that simply >> checks if bytes read are not less, than was requested and adds missing >> error handling of asix_read_cmd() all across the driver code. >> >> Fixes: d9fe64e51114 ("net: asix: Add in_pm parameter") >> Reported-and-tested-by: syzbot+6ca9f7867b77c2d316ac@...kaller.appspotmail.com >> Signed-off-by: Pavel Skripkin <paskripkin@...il.com> >> --- > > gentle ping :) Please resend patch against latest net-next with "net-next" tag instead of "RFT". -- Regards, Oleksij
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