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 42914323D for ; Fri, 6 Jun 2025 05:16:18 +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=1749186979; cv=none; b=OihnPRCXyZXX/lJnBgcxPf45bNvS+PTkOrInuoACq+VYu5IJnrvhQ/Zspo2a9PLkiDBxT+pIKaGGjEd8J3Vk0QTOPjBwBU6X611n0J1Rv5tyJKPcZKeSyaIt5CjY3PbymPDN1oKo6fH+QbteTzQKkv4Cd1T0xIqiRo2d0befrcY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749186979; c=relaxed/simple; bh=IxwqCHrACqYgymgSUXeVUNou/uoy837foUaUXgA+0k8=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=V9CxZdUvZ19f16ziUdM8KunjwkTZT+DYAFyRfolwQk0MgtR7uvhsj+xN/faojlmGSAPwxjsHWvX8QbMkW7j5Zl4hQ1lznrU0jVjB8HIT8TZIrG/93G/NfqiUmFnQkFhmCWfZkPyvxlwcAkKbwNPQXEOzy3AhM0my1NKyb5ZHP1E= 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-3ddbfe1fc8fso35769865ab.2 for ; Thu, 05 Jun 2025 22:16:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749186977; x=1749791777; 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=cCYACXMzeBDcelPE4ghIGAS5eRuewYDXuoVSiKWHsIc=; b=faoBMfZ4BzsQKW0feUETltHiz17rchDbrBrEjzlA1ekVg06sOYU8ZRqRqOyEkIi7kw wQt6NIXLdoZTNQqmemMpHgFolvbougyaDHTLTdaOHSA5jdiok4cDoWKOluq9elBrjQUH bvKFfq4WOP+8n3JtCBaw8d+xPBisvsH7O7oQionglJbtrRh9GQWLBwKrzXvx5alO43db Hc+Hezuzjq7boRTdu/6zdC5a0GxFqSlFkD/1KJswxPrvp4djgkF2wi48phc3S+gbFHdP P3d4tIi5RFI2sAasHul5pIduqeAtdQXI+rY0wG3vM50rk5KPXbgkcP+Tep1ee87AMraH isrg== X-Forwarded-Encrypted: i=1; AJvYcCUpPvymbWb4zdcUdfjAz464i5qESZl2MrkHqlkEcvCFI1g7MjdKGnYFnxiFA+wWAmoUAN+xyusrChY=@vger.kernel.org X-Gm-Message-State: AOJu0Yy2nbGia79bZoOIDCfojhr2wxTuRCNnW8EB9KlbpzG3bwUJg24i yzcZ5gpt8K/dKfaIh4TUF2901g/1CtocUMtK12AhBKTRTH6rMxJX85j/7tnpr3pKy6u56JQzEKB OmEwD/G+xd4ImqKjbwizNVzhI9hhAQ/5kmfbJB7EXBSEzC8O0QFRQvw54GPA= X-Google-Smtp-Source: AGHT+IGhuvLpAqQS7I+2m7Z9XzaPSkpAbybNsBDhKs5bekdBoj/OxhLRNHPqegbI4xxKRxzGwDGBXZgJ2CNvGDnzLy8AZrhAqumS Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:74a:b0:3dd:cdff:2160 with SMTP id e9e14a558f8ab-3ddce505a66mr23928265ab.17.1749186977327; Thu, 05 Jun 2025 22:16:17 -0700 (PDT) Date: Thu, 05 Jun 2025 22:16:17 -0700 In-Reply-To: <4a7f4d21-8b1c-4616-82bb-210395215035@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <684279a1.050a0220.2461cf.0038.GAE@google.com> Subject: Re: [syzbot] [usb?] KASAN: slab-use-after-free Read in raw_event_queue_add From: syzbot To: ipravdin.official@gmail.com Cc: ipravdin.official@gmail.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" > #syz test This crash does not have a reproducer. I cannot test it. > > diff --git a/drivers/usb/gadget/legacy/raw_gadget.c b/drivers/usb/gadget/legacy/raw_gadget.c > index 20165e1582d9..d7fca01afbf1 100644 > --- a/drivers/usb/gadget/legacy/raw_gadget.c > +++ b/drivers/usb/gadget/legacy/raw_gadget.c > @@ -120,9 +120,13 @@ static struct usb_raw_event *raw_event_queue_fetch( > static void raw_event_queue_destroy(struct raw_event_queue *queue) > { > int i; > + unsigned long flags; > > + spin_lock_irqsave(&queue->lock, flags); > for (i = 0; i < queue->size; i++) > kfree(queue->events[i]); > + spin_unlock_irqrestore(&queue->lock, flags); > + > queue->size = 0; > } > > Ivan Pravdin >