{"id":"CVE-2022-36086","revision":"18b116e9bd484518a8d6462f38cd4370","records":[{"revision":"18b116e9bd484518a8d6462f38cd4370","observedAt":"2026-10-24T20:17:36.139+00:00","statement":{"source":"nvd","id":"CVE-2022-36086","aliases":[],"title":"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…","description":"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 `Heap::new`, `Heap::init`, `Heap::init_from_slice`, and `LockedHeap::new`. It also affects multiple uses of the `Heap::extend` method. Version 0.10.2 contains a patch for the issue. As a workaround, ensure that the heap is only initialized with a size larger than `3 * size_of::<usize>` and that the `Heap::extend` method is only called with sizes larger than `2 * size_of::<usize>()`. Also, ensure that the total heap size is (and stays) a multiple of `2 * size_of::<usize>()`.","state":0,"publishedAt":"2022-09-07T23:15:14.097+00:00","modifiedAt":"2026-06-17T04:52:53.377+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.4,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://github.com/rust-osdev/linked-list-allocator/commit/013b0758643943e8df5b17bbb495460ff47e8bbf","https://github.com/rust-osdev/linked-list-allocator/security/advisories/GHSA-xg8p-34w2-j49j"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-36086","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Modified","weaknesses":["CWE-119","CWE-787","CWE-1284"],"productCriteria":["cpe:2.3:a:rust-osdev:linked-list-allocator:*:*:*:*:*:rust:*:*"],"sourceDates":{"published":"2022-09-07T23:15:14.097","lastModified":"2026-06-17T04:52:53.377"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2022-36086","identifiers":["CVE-2022-36086"]},"retained":false,"historicalAffected":[]}],"coverage":[]}