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Merge tag 'ipsec-2026-05-29' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says: ==================== pull request (net): ipsec 2026-05-29 1) xfrm: route MIGRATE notifications to caller's netns Thread the caller's netns through km_migrate() so that MIGRATE notifications go to the issuing netns, fixing both the init_net listener leak and MOBIKE notifications inside non-init netns. From Maoyi Xie. 2) xfrm: ipcomp: Free destination pages on acomp errors Move the out_free_req label up so that allocated destination pages are released on decompression errors, not only on success. From Herbert Xu. 3) xfrm: Check for underflow in xfrm_state_mtu Reject configurations that cause xfrm_state_mtu() to underflow, preventing a negative TFCPAD value from becoming a memset size that triggers an out-of-bounds write of several terabytes. From David Ahern. 4) xfrm: ah: use skb_to_full_sk in async output callbacks Convert the possibly-incomplete skb->sk to a full socket pointer in async AH callbacks so that a request_sock or timewait_sock never reaches xfrm_output_resume() downstream consumers. From Michael Bommarito. 5) Add and revert: esp: fix page frag reference leak on skb_to_sgvec failure The patch does not fix te issue completely. 6) xfrm: esp: restore combined single-frag length gate Check the aligned post-trailer combined length against a page limit in the fast path, preventing skb_page_frag_refill() from falling back to a page too small for the destination scatterlist. From Jingguo Tan. 7) xfrm: iptfs: reset runtime state when cloning SAs Reinitialise the clone's mode_data runtime objects before publishing it, preventing queued skbs from being freed with list state copied from the original SA when migration fails. From Shaomin Chen. 8) xfrm: move policy_bydst RCU sync from per-netns .exit to .pre_exit Flush policy tables and drain the workqueue in a .pre_exit handler so that cleanup_net() pays one RCU grace period per batch instead of one per namespace, fixing stalls at high CLONE_NEWNET rates. From Usama Arif. 9) xfrm: input: hold netns during deferred transport reinjection Take a netns reference when queueing deferred transport reinjection work and drop it after the callback completes, keeping the skb->cb net pointer valid until the deferred work runs. From Zhengchuan Liang. * tag 'ipsec-2026-05-29' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec: Revert "esp: fix page frag reference leak on skb_to_sgvec failure" xfrm: input: hold netns during deferred transport reinjection xfrm: move policy_bydst RCU sync from per-netns .exit to .pre_exit xfrm: iptfs: reset runtime state when cloning SAs xfrm: esp: restore combined single-frag length gate esp: fix page frag reference leak on skb_to_sgvec failure xfrm: ah: use skb_to_full_sk in async output callbacks xfrm: Check for underflow in xfrm_state_mtu xfrm: ipcomp: Free destination pages on acomp errors xfrm: route MIGRATE notifications to caller's netns ==================== Link: https://patch.msgid.link/20260529092648.3878973-1-steffen.klassert@secunet.com Signed-off-by:Jakub Kicinski <kuba@kernel.org>