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fix(cron): catch ValueError on os.open in lifecycle guard #77974

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fix(cron): catch ValueError on os.open in lifecycle guard #77974

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5 changes: 4 additions & 1 deletion cron/lifecycle_guard.py
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Original file line number Diff line number Diff line change
Expand Up @@ -258,7 +258,10 @@ def _read_referenced_script(path: Path) -> tuple[Optional[str], bool]:
flags = os.O_RDONLY | getattr(os, "O_NONBLOCK", 0)
try:
descriptor = os.open(path, flags)
except OSError:
except (OSError, ValueError):
# ValueError catches `embedded null byte` from a malformed path the
# model put in a command (e.g. a NUL in a filename). Gracefully skip
# instead of letting the uncaught exception hang the turn for minutes.
return None, False
try:
metadata = os.fstat(descriptor)
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