[Security] Bump smallvec from 0.6.8 to 0.6.14

[dependabot-preview]

Bumps smallvec from 0.6.8 to 0.6.14. This update includes security fixes.

Vulnerabilities fixed

Sourced from The RustSec Advisory Database.

Memory corruption in SmallVec::grow() Attempting to call grow on a spilled SmallVec with a value less than the current capacity causes corruption of memory allocator data structures.

An attacker that controls the value passed to grow may exploit this flaw to obtain memory contents or gain remote code execution.

Credits to @ehuss for discovering, reporting and fixing the bug.

Patched versions: >= 0.6.10 Unaffected versions: < 0.6.3

Sourced from The RustSec Advisory Database.

Double-free and use-after-free in SmallVec::grow() Attempting to call grow on a spilled SmallVec with a value equal to the current capacity causes it to free the existing data. This performs a double free immediately and may lead to use-after-free on subsequent accesses to the SmallVec contents.

An attacker that controls the value passed to grow may exploit this flaw to obtain memory contents or gain remote code execution.

Credits to @ehuss for discovering, reporting and fixing the bug.

Patched versions: >= 0.6.10 Unaffected versions: < 0.6.5

Release notes

Sourced from smallvec's releases.

v0.6.14

• Fix a possible buffer overflow in insert_many (#252, #254).

v0.6.13

• Use the maybe-unit crate in place of soon-to-be-deprecated std::mem::uninitialized (#180). When built with Rust 1.36 or later, this fixes a source of undefined behavior. It also fixes deprecation warnings in Rust 1.39 and later, and test failures when run in MIRI. In Rust 1.35 and earlier it provides some safety improvements but does not completely eliminate undefined behavior. (However, we are not aware of any cases where the undefined behavior causes bugs in practice in those toolchains.)

v0.6.12

• Move code using default fn into its own module (#161).

v0.6.11

• The unstable alloc feature is no longer needed. This crate can now build with the std feature disabled on stable Rust 1.36 or later (#159).

v0.6.10

• Fix a bug in extend with certain iterators (#150).
• Fix soundness bugs in the grow method (#151, #152).
• Fix typo in docs (#144).

v0.6.9

• Remove dependency on unreachable crate (#140)

Commits

• 5757ac5 Fix potential buffer overflow in insert_many
• 7852204 Merge pull request #180 from mbrubeck/maybe_uninit
• 58d5416 Add a test for #139.
• 26ea2ca Run miri in CI
• e64afc8 Use MaybeUninit for storage of inline items.
• 87f156b Version 0.6.12
• e60df76 Version 0.6.11
• 3ee6d1e Auto merge of #161 - Centril:master, r=emilio
• 92122e2 Move use of 'default fn' to its own module.
• c83bb71 Auto merge of #159 - CryZe:no-std, r=emilio
• Additional commits viewable in compare view

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