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92191dd107
Some lwtunnels have a dst cache for post-transformation dst. If the packet destination did not change we may end up recording a reference to the lwtunnel in its own cache, and the lwtunnel state will never be freed. Discovered by the ioam6.sh test, kmemleak was recently fixed to catch per-cpu memory leaks. I'm not sure if rpl and seg6 can actually hit this, but in principle I don't see why not. Fixes:8cb3bf8bff("ipv6: ioam: Add support for the ip6ip6 encapsulation") Fixes:6c8702c60b("ipv6: sr: add support for SRH encapsulation and injection with lwtunnels") Fixes:a7a29f9c36("net: ipv6: add rpl sr tunnel") Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250130031519.2716843-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>