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fix(logql): Handle nil entry in blocked queries slice #21735

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fix(logql): Handle nil entry in blocked queries slice #21735

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3 changes: 3 additions & 0 deletions pkg/logql/blocker.go
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,9 @@ func (qb *queryBlocker) isBlocked(ctx context.Context, tenant string) bool {
logger := log.With(qb.logger, "user", tenant, "type", typ)

for _, b := range blocks {
if b == nil {
continue
}

if b.Hash > 0 {
if b.Hash == util.HashedQuery(query) {
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6 changes: 6 additions & 0 deletions pkg/logql/blocker_test.go
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Expand Up @@ -28,6 +28,12 @@ func TestEngine_ExecWithBlockedQueries(t *testing.T) {
blocked []*validation.BlockedQuery
expectedErr error
}{
{
name: "edge case: slice contains nil value",
q: defaultQuery,
blocked: []*validation.BlockedQuery{nil},
expectedErr: nil,
},
{
"exact match all types",
defaultQuery, []*validation.BlockedQuery{
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