CVE-2022-36086: linked_list_allocator is an allocator usable for no_std systems

Q: How do I fix CVE-2022-36086?

linked-list-allocator: upgrade to 0.10.2. Exact commands for each OS are on this page.

Q: Is CVE-2022-36086 being exploited?

CVE-2022-36086 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-36086 affect?

CVE-2022-36086 affects linked-list-allocator. Severity is high (CVSS 8.4). linked_list_allocator is an allocator usable for no_std systems. Prior to version 0.10.2, the heap initialization methods were missing a minimum size check for the given heap size argument. This could lead to out-of-bound writes when a heap

Q: How urgent is CVE-2022-36086?

Priority 49/100. High severity; Public exploit reference

This month

HIGH 8.4UPGRADE

CVE-2022-36086 is a high-severity flaw (CVSS 8.4) affecting linked-list-allocator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

linked_list_allocator is an allocator usable for no_std systems. Prior to version 0.10.2, the heap initialization methods were missing a minimum size check for the given heap size argument. This could lead to out-of-bound writes when a heap was initialized with a size smaller than `3 * size_of::<usize>` because of metadata write operations. This vulnerability impacts all the initialization functions on the `Heap` and `LockedHeap` types, including

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.4 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 42%)
CISA exploited list	No
Weakness	CWE-119, CWE-787, CWE-1284
Published	2022-09-07
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: rust-osdev

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-09-07 23:15 UTCPublished CVE record published
2026-06-17 04:52 UTCUpdated Record last modified

rust-osdev linked-list-allocator UPGRADE

Affected: < 0.10.2

Fixed in: 0.10.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy linked-list-allocator || rpm -q linked-list-allocator || linked-list-allocator --version

2. UPGRADE to 0.10.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade linked-list-allocator

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade linked-list-allocator

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-36086?

linked-list-allocator: upgrade to 0.10.2. Exact commands for each OS are on this page.

Is CVE-2022-36086 being exploited?

CVE-2022-36086 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-36086 affect?

CVE-2022-36086 affects linked-list-allocator. Severity is high (CVSS 8.4). linked_list_allocator is an allocator usable for no_std systems. Prior to version 0.10.2, the heap initialization methods were missing a minimum size check for the given heap size argument. This could lead to out-of-bound writes when a heap

How urgent is CVE-2022-36086?

Priority 49/100. High severity; Public exploit reference

References

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