From: Steffen Klassert Date: Mon, 14 Jul 2025 06:59:48 +0000 (+0200) Subject: Merge branch 'ipsec: fix splat due to ipcomp fallback tunnel' X-Git-Tag: v6.16~15^2^2 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=28712d6ed32028b0f2e0defe6681411496971ca3;p=thirdparty%2Flinux.git Merge branch 'ipsec: fix splat due to ipcomp fallback tunnel' Sabrina Dubroca says: ==================== IPcomp tunnel states have an associated fallback tunnel, a keep a reference on the corresponding xfrm_state, to allow deleting that extra state when it's not needed anymore. These states cause issues during netns deletion. Commit f75a2804da39 ("xfrm: destroy xfrm_state synchronously on net exit path") tried to address these problems but doesn't fully solve them, and slowed down netns deletion by adding one synchronize_rcu per deleted state. The first patch solves the problem by moving the fallback state deletion earlier (when we delete the user state, rather than at destruction), then we can revert the previous fix. ==================== Signed-off-by: Steffen Klassert --- 28712d6ed32028b0f2e0defe6681411496971ca3