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Hi @xiehuanyi! Thanks for the fix - this descriptor leak on failed reads is real, and your patch looks good. Sadly, cross-spawn doesn't seem to be actively maintained anymore. If you're still using it, I maintain Thanks again! |
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readShebang only closed the file descriptor after a successful read, so it leaked when fs.readSync threw, e.g.: when the file is a directory. Based on #184. Co-authored-by: Huanyi Xie <74809554+xiehuanyi@users.noreply.github.com>
satazor
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Nov 1, 2026
readShebang only closed the file descriptor after a successful read, so it leaked when fs.readSync threw, e.g.: when the file is a directory. Based on #184. Co-authored-by: Huanyi Xie <74809554+xiehuanyi@users.noreply.github.com>
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landed in #187 Thanks! |
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readShebangcloses its file descriptor only after a successful read. Iffs.readSyncthrows (for example, when a directory is encountered), the error is ignored but the opened descriptor leaks.Close opened descriptors in
finally, including descriptor zero. Read and close failures retain the existing non-throwing fallback, and failed opens do not attempt a close.The new read-failure regression fails on the original code. Additional checks cover failed opens, close errors, and a valid shebang. Validation on Node 22:
npm test -- --runInBandpasses all 72 tests;npm run lintandgit diff --checkpass.