# CVE-2022-49455: linux: In the Linux kernel, the following vulnerability has been resolved:  misc: ocxl: fix possible double free in ocxl_fil...

CVE-2022-49455 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49455, released February 26, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-49455
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0028
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  misc: ocxl: fix possible double free in ocxl_file_register_afu  info_release() will be called in device_unregister() when info->dev's reference count is 0. So there is no need to call ocxl_afu_put() and kfree() again.  Fix this by adding free_minor() and return to err_unregister error path.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.18.5-1 | [DEBIAN-CVE-2022-49455](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49455.md) | Feb 26, 2025 |
| Linux | linux Debian 13.5 (trixie) | 5.18.5-1 | [DEBIAN-CVE-2022-49455](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49455.md) | Feb 26, 2025 |
| Linux | linux Debian 14 | 5.18.5-1 | [DEBIAN-CVE-2022-49455](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49455.md) | Feb 26, 2025 |

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Data as of 2026-11-08T06:59:42Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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