# CVE-2020-36766: linux: An issue was discovered in the Linux kernel before 5.8.6

CVE-2020-36766 is fixed in linux on 1 platform, first by DEBIAN-CVE-2020-36766, released September 18, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-36766
- Priority: Routine
- CVSS: 3.3 (low)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 18, 2023

## Description

An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.8.7-1 | [DEBIAN-CVE-2020-36766](https://patchblox.com/security/data/fix/linux/debian-cve-2020-36766.md) | Sep 18, 2023 |
| Linux | linux Debian 13.5 (trixie) | 5.8.7-1 | [DEBIAN-CVE-2020-36766](https://patchblox.com/security/data/fix/linux/debian-cve-2020-36766.md) | Sep 18, 2023 |
| Linux | linux Debian 14 | 5.8.7-1 | [DEBIAN-CVE-2020-36766](https://patchblox.com/security/data/fix/linux/debian-cve-2020-36766.md) | Sep 18, 2023 |

---

Data as of 2026-11-07T18:46:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo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.