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server/storage/wal: fix oss-fuzz issue 44433 #13689

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merged 1 commit into from
Feb 14, 2022
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server/storage/wal: fix oss-fuzz issue 44433 #13689

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7 changes: 6 additions & 1 deletion server/storage/wal/version.go
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Original file line number Diff line number Diff line change
Expand Up @@ -213,7 +213,12 @@ func visitEnumNumber(enum protoreflect.EnumDescriptor, number protoreflect.EnumN
if err != nil {
return err
}
return visitEnumValue(enum.Values().Get(int(number)), visitor)
intNumber := int(number)
fields := enum.Values()
if intNumber >= fields.Len() || intNumber < 0 {
return fmt.Errorf("could not visit EnumNumber [%d]", intNumber)
}
return visitEnumValue(fields.Get(intNumber), visitor)
}

func visitEnumValue(enum protoreflect.EnumValueDescriptor, visitor Visitor) error {
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