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License: Apache License 2.0
A seekable wrapper for input streams in Rust
License: Apache License 2.0
Hello fellow Rustacean,
we (Rust group @sslab-gatech) found a memory-safety/soundness issue in this crate while scanning Rust code on crates.io for potential vulnerabilities.
Lines 244 to 271 in 95a54aa
Lines 190 to 219 in 95a54aa
fill_buf()
and read_up_to()
methods create an uninitialized buffer and pass it to user-provided Read
implementation. This is unsound, because it allows safe Rust code to exhibit an undefined behavior (read from uninitialized memory).
This part from the Read
trait documentation explains the issue:
It is your responsibility to make sure that
buf
is initialized before callingread
. Calling read with an uninitializedbuf
(of the kind one obtains viaMaybeUninit<T>
) is not safe, and can lead to undefined behavior.
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