GHSA-955P-RC5H-HG6H Double free in arenavec

Affected versions of this crate did not guard against potential panics that may happen from user-provided functions T::default and T::drop. Panic within T::default leads to dropping uninitialized T, when it is invoked from common::Slice::::new. Panic within T::drop leads to double drop of T, when...

panic safety: double drop or uninitialized drop of T upon panic

Affected versions of this crate did not guard against potential panics that may happen from user-provided functions T::default and T::drop. Panic within T::default leads to dropping uninitialized T, when it is invoked from common::Slice::::new. Panic within T::drop leads to double drop of T, when...