Hi, This fix, originally intended for XFRM/IPsec, has been recommended by Steffen Klassert to submit to the net tree.
The patch addresses a minor issue related to the IPv4 source address of ICMP error messages, which originated from an old 2011 commit:
415b3334a21a ("icmp: Fix regression in nexthop resolution during replies.")
The omission of a "Fixes" tag in the following commit is deliberate to prevent potential test failures and subsequent regression issues that may arise from backporting this patch all stable kerenels. This is a minor fix, anot not security fix. With a seleftest I am submitting this to net-next tree.
v1->v2 : add kernel selftest script
Antony Antony (2): xfrm: fix source address in icmp error generation from IPsec gateway selftests: add ICMP unreachable over IPsec tunnel
net/ipv4/icmp.c | 1 - tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/xfrm_state.sh | 624 ++++++++++++++++++++++ 3 files changed, 625 insertions(+), 1 deletion(-) create mode 100755 tools/testing/selftests/net/xfrm_state.sh
-- 2.30.2