JsonSerializer throws AccessViolationException for struct with field initializers #62983
Description
Description
Deserialize a struct with field initializer causes AccessViolationException .
Reproduction Steps
JsonSerializer.Deserialize<Foo>("{}");
public struct Foo
{
public float A = 1;
}Expected behavior
The struct is deserialized successfully with the field initialized using the default field initializer.
Actual behavior
Throws this exception:
Fatal error. System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
at System.Runtime.CompilerServices.CastHelpers.IsInstanceOfInterface(Void*, System.Object)
at System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[[Foo, console, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].OnTryRead(System.Text.Json.Utf8JsonReader ByRef, System.Type, System.Text.Json.JsonSerializerOptions, System.Text.Json.ReadStack ByRef, Foo ByRef)
at System.Text.Json.Serialization.JsonConverter`1[[Foo, console, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].TryRead(System.Text.Json.Utf8JsonReader ByRef, System.Type, System.Text.Json.JsonSerializerOptions, System.Text.Json.ReadStack ByRef, Foo ByRef)
at System.Text.Json.Serialization.JsonConverter`1[[Foo, console, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].ReadCore(System.Text.Json.Utf8JsonReader ByRef, System.Text.Json.JsonSerializerOptions, System.Text.Json.ReadStack ByRef)
at System.Text.Json.JsonSerializer.ReadFromSpan[[Foo, console, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]](System.ReadOnlySpan`1<Byte>, System.Text.Json.Serialization.Metadata.JsonTypeInfo, System.Nullable`1<Int32>)
at System.Text.Json.JsonSerializer.ReadFromSpan[[Foo, console, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]](System.ReadOnlySpan`1<Char>, System.Text.Json.Serialization.Metadata.JsonTypeInfo)
at System.Text.Json.JsonSerializer.Deserialize[[Foo, console, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]](System.String, System.Text.Json.JsonSerializerOptions)
at Program.<Main>$(System.String[])
Regression?
No response
Known Workarounds
No response
Configuration
.NET SDK Version: 6.0.101
Other information
No response