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fix(cache): data race when updating the TTL of cached messages (#7397)

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This commit is contained in:
Sebastian Mayr
2025-07-03 04:20:47 +02:00
committed by GitHub
parent e34fda5d46
commit 06da7dcd98
1 changed files with 3 additions and 3 deletions
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6
plugin/cache/dnssec.go vendored
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@@ -3,8 +3,8 @@ package cache
import "github.com/miekg/dns" import "github.com/miekg/dns"
// filterRRSlice filters out OPT RRs, and sets all RR TTLs to ttl. // filterRRSlice filters out OPT RRs, and sets all RR TTLs to ttl.
// If dup is true the RRs in rrs are _copied_ into the slice that is // If dup is true the RRs in rrs are _copied_ before adjusting their
// returned. // TTL and the slice of copied RRs is returned.
func filterRRSlice(rrs []dns.RR, ttl uint32, dup bool) []dns.RR { func filterRRSlice(rrs []dns.RR, ttl uint32, dup bool) []dns.RR {
j := 0 j := 0
rs := make([]dns.RR, len(rrs)) rs := make([]dns.RR, len(rrs))
@@ -12,12 +12,12 @@ func filterRRSlice(rrs []dns.RR, ttl uint32, dup bool) []dns.RR {
if r.Header().Rrtype == dns.TypeOPT { if r.Header().Rrtype == dns.TypeOPT {
continue continue
} }
r.Header().Ttl = ttl
if dup { if dup {
rs[j] = dns.Copy(r) rs[j] = dns.Copy(r)
} else { } else {
rs[j] = r rs[j] = r
} }
rs[j].Header().Ttl = ttl
j++ j++
} }
return rs[:j] return rs[:j]