dns: validate address type in lookupService - #64878
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nodejs-github-bot merged 1 commit intoAug 21, 2026
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Signed-off-by: Lazizbek Ergashev <lazerg2@gmail.com>
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #64878 +/- ##
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Coverage 90.16% 90.17%
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Files 746 746
Lines 242763 242768 +5
Branches 45761 45768 +7
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+ Hits 218898 218921 +23
+ Misses 15352 15321 -31
- Partials 8513 8526 +13
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dns.lookupService()anddns.promises.lookupService()abort the process with a native assertion whenaddressis a non-string that still coerces to a valid IP, like aBuffer.isIP()stringifies its argument, so the existing guard passes and the raw value reaches the C++ binding, where it tripsCHECK(args[1]->IsString()). Validating thataddressis a string first, asdgramalready does, makes a bad type throwERR_INVALID_ARG_TYPEinstead of crashing.Fixes: #64877