fix: wgengine: fix TSMP/ICMP callback leak#122
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ethanndickson
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identical to the upstream fix, sgtm!
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Updates `github.com/coder/tailscale` to [`v1.1.1-0.20260519043957-6f014ff9434f`](coder/tailscale@6f014ff) to include the fix from [coder/tailscale#122](coder/tailscale#122), which ports the upstream [tailscale/tailscale#18113](tailscale/tailscale#18113) fix for TSMP/ICMP callback leaks. Fixes #25380 > Generated with [Coder Agents](https://coder.com) by @rowansmithau
This was referenced May 19, 2026
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….29) (#25470) Backport of #25469 to `release/2.29`. Updates `github.com/coder/tailscale` to [`v1.1.1-0.20260519043957-6f014ff9434f`](coder/tailscale@6f014ff) to include the fix from [coder/tailscale#122](coder/tailscale#122), which ports the upstream [tailscale/tailscale#18113](tailscale/tailscale#18113) fix for TSMP/ICMP callback leaks. Fixes #25380 > Generated with [Coder Agents](https://coder.com) by @rowansmithau
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….32) (#25473) Backport of #25469 to `release/2.32`. Updates `github.com/coder/tailscale` to [`v1.1.1-0.20260519043957-6f014ff9434f`](coder/tailscale@6f014ff) to include the fix from [coder/tailscale#122](coder/tailscale#122), which ports the upstream [tailscale/tailscale#18113](tailscale/tailscale#18113) fix for TSMP/ICMP callback leaks. Fixes #25380 > Generated with [Coder Agents](https://coder.com) by @rowansmithau
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….31) (#25471) Backport of #25469 to `release/2.31`. Updates `github.com/coder/tailscale` to [`v1.1.1-0.20260519043957-6f014ff9434f`](coder/tailscale@6f014ff) to include the fix from [coder/tailscale#122](coder/tailscale#122), which ports the upstream [tailscale/tailscale#18113](tailscale/tailscale#18113) fix for TSMP/ICMP callback leaks. Fixes #25380 > Generated with [Coder Agents](https://coder.com) by @rowansmithau
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….33) (#25472) Backport of #25469 to `release/2.33`. Updates `github.com/coder/tailscale` to [`v1.1.1-0.20260519043957-6f014ff9434f`](coder/tailscale@6f014ff) to include the fix from [coder/tailscale#122](coder/tailscale#122), which ports the upstream [tailscale/tailscale#18113](tailscale/tailscale#18113) fix for TSMP/ICMP callback leaks. Fixes #25380 > Generated with [Coder Agents](https://coder.com) by @rowansmithau
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this is an attempted fix for the issue detailed in coder/coder#25380.
it adds the changes in the upstream PR at tailscale#18113 as well as some tests which were created specifically to highlight the before/after changes (and as a result don't necessarily need to be merged)