From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: Jason Wang <jasowang@redhat.com>, qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Mauro Matteo Cascella" <mcascell@redhat.com>,
"Daniel P . Berrange" <berrange@redhat.com>,
"Michael S . Tsirkin" <mst@redhat.com>,
"P J P" <ppandit@redhat.com>,
"Stefan Hajnoczi" <stefanha@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>
Subject: [RFC PATCH-for-5.2 0/2] net: Do not accept packets with invalid huge size
Date: Fri, 27 Nov 2020 16:45:22 +0100 [thread overview]
Message-ID: <20201127154524.1902024-1-philmd@redhat.com> (raw)
Hi,
This is a simple attempt to avoid the following pattern:
ssize_t pkt_size = get_pkt_size(); // returns errno
// no check
send_packet(size_t size=pkt_size); // size casted to unsigned
// -> overflow
Regards,
Phil.
Philippe Mathieu-Daudé (2):
net: Do not accept packets bigger then NET_BUFSIZE
net: Assert no packet bigger than NET_BUFSIZE is queued
net/net.c | 4 ++++
net/queue.c | 7 +++++++
2 files changed, 11 insertions(+)
--
2.26.2
next reply other threads:[~2020-11-27 15:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-27 15:45 Philippe Mathieu-Daudé [this message]
2020-11-27 15:45 ` [RFC PATCH-for-5.2 1/2] net: Do not accept packets bigger then NET_BUFSIZE Philippe Mathieu-Daudé
2020-11-30 2:36 ` Jason Wang
2020-11-30 9:20 ` Mauro Matteo Cascella
2020-11-30 9:59 ` Philippe Mathieu-Daudé
2020-12-04 10:03 ` P J P
2020-12-04 14:01 ` Philippe Mathieu-Daudé
2020-11-27 15:45 ` [RFC PATCH-for-5.2 2/2] net: Assert no packet bigger than NET_BUFSIZE is queued Philippe Mathieu-Daudé
2020-11-30 2:50 ` Jason Wang
2020-11-27 15:47 ` [RFC PATCH-for-5.2 0/2] net: Do not accept packets with invalid huge size Philippe Mathieu-Daudé
2020-11-28 20:59 ` Peter Maydell
2020-11-30 10:02 ` Philippe Mathieu-Daudé
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