From: Alice Mikityanska <[email protected]> These are fixes for rare edge cases of 16-bit UDP length field overflow that might happen on netdevs with MTU >= 64k.
Exposed by the new WARN added to udp_set_len_short, reported by syzbot. v1: https://lore.kernel.org/netdev/[email protected]/ Alice Mikityanska (2): net: Fix UDP length overflow with PMTU discover and big MTU net: ipv6: Clamp to IP6_MAX_MTU in ip6_dst_mtu_maybe_forward include/net/ip6_route.h | 2 + net/ipv4/ip_output.c | 2 + net/ipv6/ip6_output.c | 2 +- tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/cork_fragsize.py | 77 ++++++++++++++++++++ 5 files changed, 83 insertions(+), 1 deletion(-) create mode 100755 tools/testing/selftests/net/cork_fragsize.py -- 2.55.0
