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control/controlclient: fix data race on tkaHead (#16855)

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Grab a copy under mutex in sendMapRequest.

Updates #cleanup

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
This commit is contained in:
Andrew Lytvynov
2025-08-13 13:49:27 -07:00
committed by GitHub
parent 16bc0a5558
commit 0f7facfeee
1 changed files with 2 additions and 1 deletions
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3
control/controlclient/direct.go
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@@ -856,6 +856,7 @@ func (c *Direct) sendMapRequest(ctx context.Context, isStreaming bool, nu Netmap
hi := c.hostInfoLocked()
backendLogID := hi.BackendLogID
connectionHandleForTest := c.connectionHandleForTest
tkaHead := c.tkaHead
var epStrs []string
var eps []netip.AddrPort
var epTypes []tailcfg.EndpointType
@@ -906,7 +907,7 @@ func (c *Direct) sendMapRequest(ctx context.Context, isStreaming bool, nu Netmap
Hostinfo: hi,
DebugFlags: c.debugFlags,
OmitPeers: nu == nil,
TKAHead: c.tkaHead,
TKAHead: tkaHead,
ConnectionHandleForTest: connectionHandleForTest,
}
var extraDebugFlags []string