From: Sascha Hauer <s.hauer@pengutronix.de>
To: BAREBOX <barebox@lists.infradead.org>
Cc: "Claude Opus 4.6" <noreply@anthropic.com>
Subject: [PATCH 00/10] net: prevent buffer overflows in UDP packets
Date: Thu, 02 Apr 2026 08:36:39 +0200 [thread overview]
Message-ID: <20260402-net-eth-do-udp-v1-0-af5d9fd6beec@pengutronix.de> (raw)
Our UDP handlers all use a UDP packets length without checking if it
fits into the incoming ethernet frame. Create a net_eth_to_udp() helper
which does the bounds checking and use it throughout the code.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
Sascha Hauer (10):
net: add net_eth_to_udp() helper for validated UDP extraction
fs: tftp: use net_eth_to_udp() for packet parsing
net: dhcp: use net_eth_to_udp() for packet parsing
fs: nfs: use net_eth_to_udp() for packet parsing
net: dns: use net_eth_to_udp() for packet parsing
net: sntp: use net_eth_to_udp() for packet parsing
net: netconsole: use net_eth_to_udp() for packet parsing
net: fastboot: use net_eth_to_udp() for packet parsing
net: fastboot: stop using net_eth_to_udp_payload() for PACKET_SIZE
net: remove unused net_eth_to_udp{hdr,_payload,len}() helpers
fs/nfs.c | 11 +++++++----
fs/tftp.c | 9 +++++----
include/net.h | 21 +++++++--------------
net/dhcp.c | 16 +++++++++-------
net/dns.c | 9 ++++++---
net/fastboot.c | 25 ++++++++++++++++---------
net/net.c | 40 ++++++++++++++++++++++++++++++++++++++++
net/netconsole.c | 7 +++++--
net/sntp.c | 14 +++++++++-----
9 files changed, 104 insertions(+), 48 deletions(-)
---
base-commit: 0933e8f2ebf0d91dfcf177a4e4292b02921a53f1
change-id: 20260402-net-eth-do-udp-327f4e65ddd5
Best regards,
--
Sascha Hauer <s.hauer@pengutronix.de>
next reply other threads:[~2026-04-02 6:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-02 6:36 Sascha Hauer [this message]
2026-04-02 6:36 ` [PATCH 01/10] net: add net_eth_to_udp() helper for validated UDP extraction Sascha Hauer
2026-04-02 6:36 ` [PATCH 02/10] fs: tftp: use net_eth_to_udp() for packet parsing Sascha Hauer
2026-04-02 6:36 ` [PATCH 03/10] net: dhcp: " Sascha Hauer
2026-04-02 6:36 ` [PATCH 04/10] fs: nfs: " Sascha Hauer
2026-04-02 6:36 ` [PATCH 05/10] net: dns: " Sascha Hauer
2026-04-02 6:36 ` [PATCH 06/10] net: sntp: " Sascha Hauer
2026-04-02 6:36 ` [PATCH 07/10] net: netconsole: " Sascha Hauer
2026-04-02 6:36 ` [PATCH 08/10] net: fastboot: " Sascha Hauer
2026-04-02 6:36 ` [PATCH 09/10] net: fastboot: stop using net_eth_to_udp_payload() for PACKET_SIZE Sascha Hauer
2026-04-02 6:36 ` [PATCH 10/10] net: remove unused net_eth_to_udp{hdr,_payload,len}() helpers Sascha Hauer
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