netdev - [PATCH net v3 0/2] fixes for seg6 and rpl lwtunnels on input

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Message-Id: <20250225175139.25239-1-justin.iurman@uliege.be>
Date: Tue, 25 Feb 2025 18:51:37 +0100
From: Justin Iurman <justin.iurman@...ege.be>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	dsahern@...nel.org,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	horms@...nel.org,
	justin.iurman@...ege.be
Subject: [PATCH net v3 0/2] fixes for seg6 and rpl lwtunnels on input

v3:
- split patch #1 from -v2 into two separate patches
- drop patches #2 and #3 from -v2: they will be addressed later with
  another series, so that we don't block this one
v2:
- https://lore.kernel.org/netdev/20250211221624.18435-1-justin.iurman@uliege.be/
v1:
- https://lore.kernel.org/netdev/20250209193840.20509-1-justin.iurman@uliege.be/

As a follow up to commit 92191dd10730 ("net: ipv6: fix dst ref loops in
rpl, seg6 and ioam6 lwtunnels"), we also need a conditional dst cache on
input for seg6_iptunnel and rpl_iptunnel to prevent dst ref loops (i.e.,
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). This series provides a fix to respectively prevent a
dst ref loop on input in seg6_iptunnel and rpl_iptunnel.

Justin Iurman (2):
  net: ipv6: fix dst ref loop on input in seg6 lwt
  net: ipv6: fix dst ref loop on input in rpl lwt

 net/ipv6/rpl_iptunnel.c  | 14 ++++++++++++--
 net/ipv6/seg6_iptunnel.c | 14 ++++++++++++--
 2 files changed, 24 insertions(+), 4 deletions(-)

-- 
2.34.1