# CVE-2022-50830: linux: In the Linux kernel, the following vulnerability has been resolved:  auxdisplay: hd44780: Fix potential memory leak i...

CVE-2022-50830 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50830, released December 30, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-50830
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 30, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  auxdisplay: hd44780: Fix potential memory leak in hd44780_remove()  hd44780_probe() allocates a memory chunk for hd with kzalloc() and makes "lcd->drvdata->hd44780" point to it. When we call hd44780_remove(), we should release all relevant memory and resource. But "lcd->drvdata ->hd44780" is not released, which will lead to a memory leak.  We should release the "lcd->drvdata->hd44780" in hd44780_remove() to fix the memory leak bug.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.20-1 | [DEBIAN-CVE-2022-50830](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50830.md) | Dec 30, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.1.20-1 | [DEBIAN-CVE-2022-50830](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50830.md) | Dec 30, 2025 |
| Linux | linux Debian 14 | 6.1.20-1 | [DEBIAN-CVE-2022-50830](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50830.md) | Dec 30, 2025 |

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