From nobody Sat Feb 7 20:58:18 2026 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (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 377C42F7ABB for ; Fri, 31 Oct 2025 06:45:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761893105; cv=none; b=SRbvJi6KyD4JkXCIj9dcuw2I4qshUVVx4G99xXM3LmjOMYgeHMGY36h1FxxVWJ8MS+1XlIKl38htPeeFUY+xSZQnlQ8jrNqiUiLJwh6Nhi1F8b2ncR7yWVdBf0PUsI3XRFEKbwkTpL/FN5uJ8E1PQZFtBsrUgRF2GioAs6ngNJ8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761893105; c=relaxed/simple; bh=6OowjB9orD1CHywv3l0ULBS5+U4i1WAVTOislAtkrkw=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=vDEFmhAHj1ZqmX7ooVsXl2xhCOWhbaggOpjksLgOneM3GiGSuSYIqzQ1tCn5fWoCMR3CnIUCQytuiiAEb38D1rLKwZbO1/fiqdw6GvtAzXP1POmFdIXj7nCtXMDq51ZZ+gI8wiyh8SQIECiyXR3rxB6JTV0Wjex3pgzC/6JB1nw= 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=209.85.166.72 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-io1-f72.google.com with SMTP id ca18e2360f4ac-945c705df24so355049639f.0 for ; Thu, 30 Oct 2025 23:45:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761893102; x=1762497902; h=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=Eu3tgcD8OjLMYXfT/s/p2VJrdoIBjeArHlIv1rvNgoU=; b=BEFjaf8OMxs3fd+7h1xVxhgcWGRmNT5rva7RbfZjse/Z5AHWKgQaAYEfECBV3JUGOI ZOyNG1+2r4jim7J6YrunqAdXLVbat/FEdYT6fBfmFi0W0obZPgrSCEsbLaJl3DWrVQX9 8qW+HnVNjbWzUCPOT0TrHQtGAVULPD4y3qhhcPlxEPmsAbE2jr/aa19/okHlJaCI3UC1 4NROuLbOzGFmAnrwOkRjEo6MRAu6JczZ28xGeAQwZE7ruwEfq35XPSqCvLINoW8ph5lj oC6GRmq/zWUj6lrAJlL+jyE53/eMgN4PVYaGwqtp8SCdUJOxdBbBJn9Kvgf7LqyPRr4g TBTQ== X-Gm-Message-State: AOJu0Yyg1hgm6yIEfPYHGIJSpSPJ3GawfWatbt7BEfAewsWw5nlYfECl kQARnLmd9ID8jXR1QZxrqJGz4d+6XMRiQVb67UtDPYPBrwyMLrYwOGjBiB8y5ZL2M0XSnsJkLyT S1+FJP1doSSCPzvcsivCBmTDMqCqjbyB7Lz/xR0rgy+IVdB7EZh4geypsY2M= X-Google-Smtp-Source: AGHT+IH3EQN3RQNYxaPT4iIe+IFhGXjDXdXXM4z1rZcTGLWFTn0J7QP/H6rFgBR94R4CuXHZxbQ6osjFNIccr0ld3sZCUkZ0y5D5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1:b0:431:da98:3519 with SMTP id e9e14a558f8ab-4330bcf69e9mr48176355ab.0.1761893102447; Thu, 30 Oct 2025 23:45:02 -0700 (PDT) Date: Thu, 30 Oct 2025 23:45:02 -0700 In-Reply-To: <69039850.a70a0220.5b2ed.005d.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69045aee.050a0220.e9cb8.0000.GAE@google.com> Subject: Forwarded: general protection fault in sigd_send From: syzbot To: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: general protection fault in sigd_send Author: hsukrut3@gmail.com #syz test --- net/atm/signaling.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/atm/signaling.c b/net/atm/signaling.c index e70ae2c113f9..0fda16975c70 100644 --- a/net/atm/signaling.c +++ b/net/atm/signaling.c @@ -63,6 +63,11 @@ static void modify_qos(struct atm_vcc *vcc, struct atmsv= c_msg *msg) =20 static int sigd_send(struct atm_vcc *vcc, struct sk_buff *skb) { + if (vcc !=3D sigd || !test_bit(ATM_VF_SESSION, &vcc->flags)) { + dev_kfree_skb(skb); + return -EPERM; + } + struct atmsvc_msg *msg; struct atm_vcc *session_vcc; struct sock *sk; --=20 2.43.0