# CVE-2021-47514: linux: In the Linux kernel, the following vulnerability has been resolved:  devlink: fix netns refcount leak in devlink_nl_c...

CVE-2021-47514 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47514, released May 24, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-47514
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 24, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  devlink: fix netns refcount leak in devlink_nl_cmd_reload()  While preparing my patch series adding netns refcount tracking, I spotted bugs in devlink_nl_cmd_reload()  Some error paths forgot to release a refcount on a netns.  To fix this, we can reduce the scope of get_net()/put_net() section around the call to devlink_reload().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.15.15-1 | [DEBIAN-CVE-2021-47514](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47514.md) | May 24, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.15.15-1 | [DEBIAN-CVE-2021-47514](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47514.md) | May 24, 2024 |
| Linux | linux Debian 14 | 5.15.15-1 | [DEBIAN-CVE-2021-47514](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47514.md) | May 24, 2024 |

---

Data as of 2026-11-09T01:18:40Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo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.