From ae6bc4dd64e149270a86d649c92728432a50945f Mon Sep 17 00:00:00 2001 From: Alexander Neumann Date: Fri, 4 Mar 2022 10:38:10 +0100 Subject: tun/netstack: check error returned by SetDeadline() Signed-off-by: Alexander Neumann [Jason: don't wrap deadline error.] Signed-off-by: Jason A. Donenfeld --- tun/netstack/tun.go | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tun/netstack/tun.go b/tun/netstack/tun.go index ebdd5f1..8b1bb7f 100644 --- a/tun/netstack/tun.go +++ b/tun/netstack/tun.go @@ -690,7 +690,10 @@ func (tnet *Net) exchange(ctx context.Context, server netip.Addr, q dnsmessage.Q return dnsmessage.Parser{}, dnsmessage.Header{}, err } if d, ok := ctx.Deadline(); ok && !d.IsZero() { - c.SetDeadline(d) + err := c.SetDeadline(d) + if err != nil { + return dnsmessage.Parser{}, dnsmessage.Header{}, err + } } var p dnsmessage.Parser var h dnsmessage.Header -- cgit v1.2.3-59-g8ed1b