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DNS: Avoid panic on domain too long (#6207)

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Fixes https://github.com/XTLS/Xray-core/issues/6204
This commit is contained in:
Meow
2026-05-29 04:06:32 +08:00
committed by GitHub
parent 1cd7d25fec
commit a2cec2e580
6 changed files with 75 additions and 10 deletions
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app/dns/dnscommon.go
+9 -4
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@@ -127,15 +127,20 @@ func genEDNS0Options(clientIP net.IP, padding int) *dnsmessage.Resource {
return opt
}
func buildReqMsgs(domain string, option dns_feature.IPOption, reqIDGen func() uint16, reqOpts *dnsmessage.Resource) []*dnsRequest {
func buildReqMsgs(domain string, option dns_feature.IPOption, reqIDGen func() uint16, reqOpts *dnsmessage.Resource) ([]*dnsRequest, error) {
name, err := dnsmessage.NewName(domain)
if err != nil {
return nil, err
}
qA := dnsmessage.Question{
Name: dnsmessage.MustNewName(domain),
Name: name,
Type: dnsmessage.TypeA,
Class: dnsmessage.ClassINET,
}
qAAAA := dnsmessage.Question{
Name: dnsmessage.MustNewName(domain),
Name: name,
Type: dnsmessage.TypeAAAA,
Class: dnsmessage.ClassINET,
}
@@ -175,7 +180,7 @@ func buildReqMsgs(domain string, option dns_feature.IPOption, reqIDGen func() ui
})
}
return reqs
return reqs, nil
}
// parseResponse parses DNS answers from the returned payload