# CVE-2022-20422: linux: In emulation_proc_handler of armv8_deprecated.c, there is a possible way to corrupt memory due to a race condition

CVE-2022-20422 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-20422, released October 11, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-20422
- Priority: High
- CVSS: 7.0 (high)
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 11, 2022

## Description

In emulation_proc_handler of armv8_deprecated.c, there is a possible way to corrupt memory due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-237540956References: Upstream kernel

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.19.6-1 | [DEBIAN-CVE-2022-20422](https://patchblox.com/security/data/fix/linux/debian-cve-2022-20422.md) | Oct 11, 2022 |
| Linux | linux Debian 13.5 (trixie) | 5.19.6-1 | [DEBIAN-CVE-2022-20422](https://patchblox.com/security/data/fix/linux/debian-cve-2022-20422.md) | Oct 11, 2022 |
| Linux | linux Debian 14 | 5.19.6-1 | [DEBIAN-CVE-2022-20422](https://patchblox.com/security/data/fix/linux/debian-cve-2022-20422.md) | Oct 11, 2022 |

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Data as of 2026-11-08T13:06:02Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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