From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 117C616FF2B for ; Fri, 5 Apr 2024 15:38:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712331511; cv=none; b=W/ZgQQIzY0hdxg9VWyxreduxNr3PgriCt5EyIyIPdPS/DMdQ9Wa5atxH69mNnP/EOiIW+edjf2zFZf7tCM/ecF5xbk0mFcTwOp4BioJ932jIwAkFX8NKLukg2UO8RnprqR9Tga2Nm5epAai27bDf8GEkjs2LK8RaiOu3eMRLAC8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712331511; c=relaxed/simple; bh=ytYzoahinejCpQ2R5x0v/K/VoJy/00UGWBOd8vALhYk=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=DD4dheYpv4cDZc0rEcI7CyxALemH/MwnSi6JJEOGp++aC/jBVEt9CtohV/jwJyhAtB+n40Zlc5ZwX3YdCLwVxNxbQalqnw4Jn7dR6BrDOQK0uqTcnjQzz6cfvXvzUComMuMy8wXb1XFFoM9C44sCISYBjC2PBmXw+lUVRyZUQ/0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f199.google.com with SMTP id e9e14a558f8ab-368a360baabso19600815ab.3 for ; Fri, 05 Apr 2024 08:38:29 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712331509; x=1712936309; h=cc:to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=kKzucjLpr0I1V5YLQUy7+tP5incwpmn1FHi9dn7tKpQ=; b=cRXKZZ+Mvyb4XUFoNF1ZNcSk6iCJ0vS3D2taoRxnYjHt2Jy3IX3CNEvl+f14x4kywa oE9vXHsfwouAWxk8GBAjidzwm2+CIYskjP3npsIFBWt+bfiDvt8ghtMJ/iDqQHApngJc nvT56//fKE8Th0RFp68GigSAfbi5O/YmNZw3RprEtyR9XiAhbdw82m3lB6XVkgolXjDZ YJ45/PGcRcjANUA2fY0h9OxbOkBCB7uK9CkhdC1JC3XIlMkAfEAbWx9E4NZwADDqSMue tmSDteUvH2sv3gA4EH5RbmmJ7n6OvgEG71DsfqfDY/Mzz9+FIgD1KzfWc2i0lsch5xXE QPOg== X-Forwarded-Encrypted: i=1; AJvYcCUJ6MuBvGXfJOuNRmkQIeEBNGr3+3lazxxF72MC0pm5MbLYl0ha/x5hJR+84SbnXIlOpwuocP51KX/jbzrI36mSPPQyvoC7GAIfWOs+ X-Gm-Message-State: AOJu0Yw1uYzxbU4Zc3ofFjaWqHizgA4DuwAHitPVr3p68LoWsro/IsqE h2Tt3/kCFHMdLb5G/EKrjVl0um0RJcReuGzY0K01xDNPPcw7XC5gp3QrM+l4BO4kaO3cerSbZ6d oPA/AaJpkwYLUs/CDEzKGgI/zB8uBuQiTPU0FcFL9NOqevteY3u8AmLY= X-Google-Smtp-Source: AGHT+IEYaulUjnHJhIE1cZ1KiOZsb8PzwwBqn42XUaEf/Mpohq0DQN8irH6DApDXVfREmrUyE0kYlDJoc4feBEYkLdqGEpRtkd8q Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:cdae:0:b0:369:b97e:7e49 with SMTP id g14-20020a92cdae000000b00369b97e7e49mr116579ild.1.1712331509296; Fri, 05 Apr 2024 08:38:29 -0700 (PDT) Date: Fri, 05 Apr 2024 08:38:29 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000059838206155b3fbb@google.com> Subject: Re: [PATCH net] nfc: nci: Fix uninit-value in nci_rx_work From: syzbot To: ryasuoka@redhat.com Cc: ryasuoka@redhat.com, syzkaller-bugs@googlegroups.com, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" > #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git want either no args or 2 args (repo, branch), got 5 > > diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c > index 0d26c8ec9993..b7a020484131 100644 > --- a/net/nfc/nci/core.c > +++ b/net/nfc/nci/core.c > @@ -1516,7 +1516,7 @@ static void nci_rx_work(struct work_struct *work) > nfc_send_to_raw_sock(ndev->nfc_dev, skb, > RAW_PAYLOAD_NCI, NFC_DIRECTION_RX); > > - if (!nci_plen(skb->data)) { > + if (!skb->len || !nci_plen(skb->data)) { > kfree_skb(skb); > break; > } >