Build corruption when using PYO3_CONFIG_FILE environment variable

swap_index can write out of bounds and return uninitialized memory

Reference counting error in From<Py<T>>

futures_task::waker may cause a use-after-free if used on a type that isn't 'static

Improper Sync implementation on FuturesUnordered in futures-utils can cause data corruption

MutexGuard::map can cause a data race in safe code

fix unsound APIs that could lead to UB

Bug in SliceDeque::move_head_unchecked corrupts its memory

Bug in SliceDeque::move_head_unchecked allows read of corrupted memory

array_queue pop_back() may cause a use-after-free

Possible double free during unwinding in SmallVec::insert_many

Use after free in CMS Signing

Integer overflow leads to heap-based buffer overflow in encode_config_buf

Use-after-free in buffer conversion implementation

Vec-to-vec transmutations could lead to heap overflow/corruption

MsQueue and SegQueue suffer from double-free