Thread (10 messages) 10 messages, 4 authors, 2022-01-02

[PATCH net 0/5] net: Length checks for attributes within multipath routes

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From: David Ahern <dsahern@kernel.org>
Date: 2021-12-31 00:36:48
Subsystem: networking [general], networking [ipv4/ipv6], the rest · Maintainers: "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Ahern, Ido Schimmel, Linus Torvalds

Add length checks for attributes within a multipath route (attributes
within RTA_MULTIPATH). Motivated by the syzbot report in patch 1 and
then expanded to other attributes as noted by Ido.

David Ahern (5):
  ipv4: Check attribute length for RTA_GATEWAY in multipath route
  ipv4: Check attribute length for RTA_FLOW in multipath route
  ipv6: Check attribute length for RTA_GATEWAY in multipath route
  ipv6: Check attribute length for RTA_GATEWAY when deleting multipath
    route
  lwtunnel: Validate RTA_ENCAP_TYPE attribute is at least 2 bytes

 net/core/lwtunnel.c      |  4 ++++
 net/ipv4/fib_semantics.c | 49 +++++++++++++++++++++++++++++++++++-----
 net/ipv6/route.c         | 31 +++++++++++++++++++++++--
 3 files changed, 76 insertions(+), 8 deletions(-)

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