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fix #4536 - stack buffer overflow for size_of 0 types in struct unmarshal

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Laytan Laats
2024-12-06 22:12:52 +01:00
parent 676fe34863
commit 7edd332993
1 changed files with 1 additions and 1 deletions
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core/encoding/json/unmarshal.odin
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@@ -433,7 +433,7 @@ unmarshal_object :: proc(p: ^Parser, v: any, end_token: Token_Kind) -> (err: Unm
}
field_used_bytes := (reflect.size_of_typeid(ti.id)+7)/8
field_used := intrinsics.alloca(field_used_bytes, 1)
field_used := intrinsics.alloca(field_used_bytes + 1, 1) // + 1 to not overflow on size_of 0 types.
intrinsics.mem_zero(field_used, field_used_bytes)
use_field_idx := -1