# CVE-2022-40307: linux: An issue was discovered in the Linux kernel through 5.19.8

CVE-2022-40307 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2022-40307, released September 9, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-40307
- Priority: Routine
- CVSS: 4.7 (medium)
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 9, 2022

## Description

An issue was discovered in the Linux kernel through 5.19.8. drivers/firmware/efi/capsule-loader.c has a race condition with a resultant use-after-free.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | bpftool-debuginfo amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-debuginfo amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-devel amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-headers amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-libbpf amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-libbpf-devel amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-libbpf-static amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-livepatch-6.1.10-15.42 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-tools amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-tools-debuginfo amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-tools-devel amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | linux Debian 12.15 (bookworm) | 5.19.11-1 | [DEBIAN-CVE-2022-40307](https://patchblox.com/security/data/fix/linux/debian-cve-2022-40307.md) | Sep 9, 2022 |
| Linux | linux Debian 13.5 (trixie) | 5.19.11-1 | [DEBIAN-CVE-2022-40307](https://patchblox.com/security/data/fix/linux/debian-cve-2022-40307.md) | Sep 9, 2022 |
| Linux | linux Debian 14 | 5.19.11-1 | [DEBIAN-CVE-2022-40307](https://patchblox.com/security/data/fix/linux/debian-cve-2022-40307.md) | Sep 9, 2022 |
| Linux | perf amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | perf-debuginfo amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | python3-perf amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | python3-perf-debuginfo amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |

---

Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.