unbounded-spsc: Sender::send pointer-as-value transmute causes OOB read and fake-Arc drop under TX/RX race

Summary Sender::send in src/lib.rs contains an unsafe block in the DISCONNECTED arm that transmutes a raw pointer mut Producer into the bytes of a value-level Consumer. The author's intent, visible in the surrounding comment at lines 386-390, was a value transmute. The shipped code is one level o...

move_elements can double-free objects on panic

Affected versions of scratchpad used ptr::read to read elements while calling a user provided function f on them. Since the pointer read duplicates ownership, a panic inside the user provided f function could cause a double free when unwinding. The flaw was fixed in commit 891561bea by removing t...

GHSA-3QM2-RFQW-FMRW move_elements can double-free objects on panic

Affected versions of scratchpad used ptr::read to read elements while calling a user provided function f on them. Since the pointer read duplicates ownership, a panic inside the user provided f function could cause a double free when unwinding. The flaw was fixed in commit 891561bea by removing t...

Deserializing an array can drop uninitialized memory on panic

The readbytesdefaultle function for T; n arrays, used to deserialize arrays of T from bytes created a T; n array with std::mem::uninitialized and then called T's deserialization method. If T's deserialization method panicked, the uninitialized memory could drop invalid objects. This flaw was...

RUSTSEC-2021-0032 Deserializing an array can drop uninitialized memory on panic

The readbytesdefaultle function for T; n arrays, used to deserialize arrays of T from bytes created a T; n array with std::mem::uninitialized and then called T's deserialization method. If T's deserialization method panicked, the uninitialized memory could drop invalid objects. This flaw was...

move_elements can double-free objects on panic

Affected versions of scratchpad used ptr::read to read elements while calling a user provided function f on them. Since the pointer read duplicates ownership, a panic inside the user provided f function could cause a double free when unwinding. The flaw was fixed in commit 891561bea by removing t...

RUSTSEC-2021-0029 Tape::take_bytes exposes uninitialized memory to a user-provided Read

Affected versions of this crate passed an unininitialized buffer to a user-provided Read instance in Tape::takebytes. This can result in safe Read implementations reading from the uninitialized buffer leading to undefined behavior. The flaw was corrected in commit 1f2dc7f37dd by removing the unsa...