Luca Boccassi
39bc1dfa0f
bus_message_map_all_properties() fed the peer-supplied wire signature straight
into the variant dispatch and never compared it against the declared
prop->signature, so map_basic() wrote at the wire type's native width into a
slot sized for the declared type (over-wide numeric writes, peer-controlled
pointers into char** slots later freed by strv_free()). Compare against
prop->signature and skip the variant on mismatch.
This is in practice not a problem as the servers are trusted, and this
only affects clients.
Follow-up for 9f6eb1cd58
Assisted-by: kres (claude-opus-4-7)
Co-developed-by: Claude Opus 4.8 <noreply@anthropic.com>
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