Paul Meyer
6212baaf82
qemu_config_section()/qemu_config_key() write section types and keys unquoted ([type], key = …), but the type check only rejected '\n' while the structurally identical id/key checks rejected more, even though the unquoted type slot is the most sensitive. Replace the three ad-hoc denylists with one allowlist matching QEMU's identifier grammar ([A-Za-z0-9._-], non-empty). This is merely hardening, all callers pass constant input today. For the value check use string_is_safe() for now, which is a bit stricter than QEMUs own config validation. Add test-vmspawn-qemu-config covering both. Co-developed-by: Claude Opus 4.8 <noreply@anthropic.com> Signed-off-by: Paul Meyer <katexochen0@gmail.com>
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