RUSTSEC-2026-0298 Use-after-free when a future's `Drop` panics while the container is dropped

Storage::clear walks the slab, empties each entry and frees the Task allocation once its reference count reaches zero. self.tasks.setlen0 only runs after the loop. Emptying an entry drops the user future it holds, and T carries no bounds excluding a panicking Drop. If one unwinds, the length is...

PT-2026-96196

Chunk::clear, drop left, drop right and InlineArray::clear, truncate drop the removed elements before updating the metadata that records which slots hold live values — the left/right index pair for Chunk, the length field for InlineArray. If an element's Drop panics during the drop, that update i...

Double free in `Map::into_iter` and an uninitialized `Arc` in `SharedIncin::clear`

Two independent soundness problems, both reachable from safe Rust. Map::intoiter drops builder the caller-supplied hasher H and incin by hand, then commits the ownership transfer with mem::forgetself. H::drop is user code and may panic. If it does, mem::forgetself is skipped and the still-live Ma...

RUSTSEC-2026-0284 Double free in `Map::into_iter` and an uninitialized `Arc` in `SharedIncin::clear`

Two independent soundness problems, both reachable from safe Rust. Map::intoiter drops builder the caller-supplied hasher H and incin by hand, then commits the ownership transfer with mem::forgetself. H::drop is user code and may panic. If it does, mem::forgetself is skipped and the still-live Ma...

RUSTSEC-2026-0267 Panic-safety unsoundness in `BitVecCore::clear` (double-free / use-after-free)

BitVecCore::clear drops every occupied element with dropinplace and only afterwards clears the occupancy bits and resets len. If an element's Drop panics, those metadata updates are skipped, so the slot of the already-dropped element stays marked as occupied. BitVecCore::drop calls clear again,...

RUSTSEC-2026-0254 Panic-safety unsoundness in `Chunk` and `InlineArray` (use-after-free / double-free)

Several methods in sp-sized-chunks drop elements before updating the container's length/boundary metadata. If an element's Drop panics during the drop, the metadata update is skipped, so the container still treats the already-dropped elements as live. When the container is later dropped, its own...

RUSTSEC-2026-0256 Panic-safety unsoundness in `truncate_back`, `truncate_front`, `clear`, and `extend_from_slice` (use-after-free / double-free)

Several methods in circular-buffer drop elements before updating the buffer's start/end metadata. If an element's Drop panics during the drop, the metadata update is skipped, so the buffer still treats the already-dropped elements as live. When the buffer is later dropped or used after the panic ...

RUSTSEC-2026-0252 Panic-safety unsoundness in `SplitVec::extend_from_slice` (uninitialized read)

SplitVec::extendfromslice increments the logical length self.len before cloning the incoming elements into the reserved slots. If an element's Clone panics mid-fill, unwinding leaves self.len counting slots that were never initialized. A later safe read get, indexing, iter then reads one of those...

RUSTSEC-2026-0255 Panic-safety unsoundness in `Chunk`, `RingBuffer`, and `InlineArray` (use-after-free / double-free)

Several methods in sized-chunks drop elements before updating the length/boundary metadata. If an element's Drop panics during the drop, the metadata update is skipped, so the container still treats the already-dropped elements as live. When the container's own Drop runs, those elements are visit...

Panic-safety unsoundness in `truncate_back`, `truncate_front`, `clear`, and `extend_from_slice` (use-after-free / double-free)

Several methods in circular-buffer drop elements before updating the buffer's start/end metadata. If an element's Drop panics during the drop, the metadata update is skipped, so the buffer still treats the already-dropped elements as live. When the buffer is later dropped or used after the panic ...

Panic-safety unsoundness in `Chunk` and `InlineArray` (use-after-free / double-free)

Several methods in sp-sized-chunks drop elements before updating the container's length/boundary metadata. If an element's Drop panics during the drop, the metadata update is skipped, so the container still treats the already-dropped elements as live. When the container is later dropped, its own...

Panic-safety unsoundness in `Chunk`, `RingBuffer`, and `InlineArray` (use-after-free / double-free)

Several methods in sized-chunks drop elements before updating the length/boundary metadata. If an element's Drop panics during the drop, the metadata update is skipped, so the container still treats the already-dropped elements as live. When the container's own Drop runs, those elements are visit...

PT-2026-80711

Several methods in sized-chunks drop elements before updating the length/boundary metadata. If an element's Drop panics during the drop, the metadata update is skipped, so the container still treats the already-dropped elements as live. When the container's own Drop runs, those elements are visit...

PT-2026-80712

Several methods in circular-buffer drop elements before updating the buffer's start/end metadata. If an element's Drop panics during the drop, the metadata update is skipped, so the buffer still treats the already-dropped elements as live. When the buffer is later dropped or used after the panic ...

PT-2026-80710

Several methods in sp-sized-chunks drop elements before updating the container's length/boundary metadata. If an element's Drop panics during the drop, the metadata update is skipped, so the container still treats the already-dropped elements as live. When the container is later dropped, its own...

Double free / use-after-free in `ReadChunk::commit` when an element's `Drop` panics

ReadChunk::commit and ReadChunk::commitall drop the committed elements before advancing the consumer head. If an element's Drop panics during the drop loop, head is never advanced, so the ring buffer still treats those slots as holding live elements. When the RingBuffer is later dropped it walks...

SUSE CVE-2026-41681

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.39 to before 0.10.78, EVPDigestFinal always writes EVPMDCTXsizectx to the out buffer. If out is smaller than that, MdCtxRef::digestfinal writes past its end, usually corrupting the stack. This is reachable from sa...

Double-free in `vmem` storage reachable from safe Rust

When the vmem feature is enabled, VmemStorage::newBox and every public constructor that funnels through it — ConcurrentHeapRB::defaultcap, ConcurrentHeapRB::fromVec, From, etc. bit-copies the input buffer into a freshly mmap'd region with ptr::copynonoverlapping, then lets the source Box drop...

RUSTSEC-2026-0142 Double-free in `vmem` storage reachable from safe Rust (predecessor of `oneringbuf`)

mutringbuf is the archived predecessor of oneringbuf — the crate was renamed and the GitHub repository was archived on 2025-11-20. All released versions up to 1.0.0 carry the same vmem-feature double-free bug that affects oneringbuf, with the same code paths and the same reproduction shape. When...

Potential use-after-free due to lack of panic safety in `LruCache::pop()`

LruCache::pop in lru was not panic-safe. If the Drop implementation of a stored key panics during pop, self.detach is never called, leaving dangling pointers in the internal doubly-linked list. A subsequent cache operation that triggers eviction can then dereference these dangling pointers: - The...