[PR #5154] [client] Fix IPv4-only in bind proxy #22199

New Issue

saavagebueno · 2026-08-05T05:09:27-04:00

saavagebueno commented

2026-08-05 05:09:27 -04:00

Original Pull Request: https://github.com/netbirdio/netbird/pull/5154

State: closed
Merged: Yes

Describe your changes

Fixes:

2026-01-22T17:01:45+01:00 WARN client/iface/bind/activity.go:85: could not find record for address invalid AddrPort
panic: As4 called on IP zero value

goroutine 382 [running]:
net/netip.Addr.As4(...)
	/home/vma/dev/go/go/src/net/netip/netip.go:719
golang.zx2c4.com/wireguard/conn.(*StdNetBind).Send(0xc0000bc5a0, {0xc000ca27c8, 0x1, 0x1}, {0x121b03e0, 0xc000e96d00})
	/home/vma/dev/go/pkg/mod/github.com/netbirdio/wireguard-go@v0.0.0-20260107100953-33b7c9d03db0/conn/bind_std.go:389 +0xc05
github.com/netbirdio/netbird/client/iface/bind.(*ICEBind).Send(0xc0002089c0, {0xc000ca27c8, 0x1, 0x1}, {0x121b03e0, 0xc000e96d00})
	/home/vma/dev/netbird/client/iface/bind/ice_bind.go:159 +0x176
golang.zx2c4.com/wireguard/device.(*Peer).SendBuffers(0xc0006de308, {0xc000ca27c8, 0x1, 0x1})
	/home/vma/dev/go/pkg/mod/github.com/netbirdio/wireguard-go@v0.0.0-20260107100953-33b7c9d03db0/device/peer.go:136 +0x272
golang.zx2c4.com/wireguard/device.(*Peer).RoutineSequentialSender(0xc0006de308, 0x1)
	/home/vma/dev/go/pkg/mod/github.com/netbirdio/wireguard-go@v0.0.0-20260107100953-33b7c9d03db0/device/send.go:519 +0x686
created by golang.zx2c4.com/wireguard/device.(*Peer).Start in goroutine 269
	/home/vma/dev/go/pkg/mod/github.com/netbirdio/wireguard-go@v0.0.0-20260107100953-33b7c9d03db0/device/peer.go:208 +0x427

Issue ticket number and link

Stack

Checklist

Is it a bug fix
Is a typo/documentation fix
Is a feature enhancement
It is a refactor
Created tests that fail without the change (if possible)

By submitting this pull request, you confirm that you have read and agree to the terms of the Contributor License Agreement.

Documentation

Select exactly one:

I added/updated documentation for this change
Documentation is not needed for this change (explain why)

Docs PR URL (required if "docs added" is checked)

Paste the PR link from https://github.com/netbirdio/docs here:

https://github.com/netbirdio/docs/pull/__

Summary by CodeRabbit

Bug Fixes
- Strengthened network address conversion with improved error handling to detect and properly handle conversion failures
- Added defensive validation checks for endpoint assignments to prevent edge cases with nil or invalid values
- Enhanced error propagation in endpoint operations to improve overall proxy stability and reliability

_{✏️ Tip: You can customize this high-level summary in your review settings.}

**Original Pull Request:** https://github.com/netbirdio/netbird/pull/5154 **State:** closed **Merged:** Yes --- ## Describe your changes Fixes: ``` 2026-01-22T17:01:45+01:00 WARN client/iface/bind/activity.go:85: could not find record for address invalid AddrPort panic: As4 called on IP zero value goroutine 382 [running]: net/netip.Addr.As4(...) /home/vma/dev/go/go/src/net/netip/netip.go:719 golang.zx2c4.com/wireguard/conn.(*StdNetBind).Send(0xc0000bc5a0, {0xc000ca27c8, 0x1, 0x1}, {0x121b03e0, 0xc000e96d00}) /home/vma/dev/go/pkg/mod/github.com/netbirdio/wireguard-go@v0.0.0-20260107100953-33b7c9d03db0/conn/bind_std.go:389 +0xc05 github.com/netbirdio/netbird/client/iface/bind.(*ICEBind).Send(0xc0002089c0, {0xc000ca27c8, 0x1, 0x1}, {0x121b03e0, 0xc000e96d00}) /home/vma/dev/netbird/client/iface/bind/ice_bind.go:159 +0x176 golang.zx2c4.com/wireguard/device.(*Peer).SendBuffers(0xc0006de308, {0xc000ca27c8, 0x1, 0x1}) /home/vma/dev/go/pkg/mod/github.com/netbirdio/wireguard-go@v0.0.0-20260107100953-33b7c9d03db0/device/peer.go:136 +0x272 golang.zx2c4.com/wireguard/device.(*Peer).RoutineSequentialSender(0xc0006de308, 0x1) /home/vma/dev/go/pkg/mod/github.com/netbirdio/wireguard-go@v0.0.0-20260107100953-33b7c9d03db0/device/send.go:519 +0x686 created by golang.zx2c4.com/wireguard/device.(*Peer).Start in goroutine 269 /home/vma/dev/go/pkg/mod/github.com/netbirdio/wireguard-go@v0.0.0-20260107100953-33b7c9d03db0/device/peer.go:208 +0x427 ``` ## Issue ticket number and link ## Stack  ### Checklist - [x] Is it a bug fix - [ ] Is a typo/documentation fix - [ ] Is a feature enhancement - [ ] It is a refactor - [ ] Created tests that fail without the change (if possible) > By submitting this pull request, you confirm that you have read and agree to the terms of the [Contributor License Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md). ## Documentation Select exactly one: - [ ] I added/updated documentation for this change - [x] Documentation is **not needed** for this change (explain why) ### Docs PR URL (required if "docs added" is checked) Paste the PR link from https://github.com/netbirdio/docs here: https://github.com/netbirdio/docs/pull/__  ## Summary by CodeRabbit * **Bug Fixes** * Strengthened network address conversion with improved error handling to detect and properly handle conversion failures * Added defensive validation checks for endpoint assignments to prevent edge cases with nil or invalid values * Enhanced error propagation in endpoint operations to improve overall proxy stability and reliability <sub>✏️ Tip: You can customize this high-level summary in your review settings.</sub>

saavagebueno added the pull-request label 2026-08-05 05:09:27 -04:00

saavagebueno closed this issue

2026-08-05 05:09:28 -04:00

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Reference: DYNR/netbird#22199