CVE-2022-50830

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.

• https://git.kernel.org/stable/c/5d407911e605702ffcc0e97a6db546592ab27dd0
• https://git.kernel.org/stable/c/6cd37f8232f5e169a723e1d5fbe3b2139c2ef763
• https://git.kernel.org/stable/c/8311961a1724bfc64390c539dedc31e067a80315
• https://git.kernel.org/stable/c/ddf75a86aba2cfb7ec4497e8692b60c8c8fe0ee7

Published

Dec 30, 2025

Last Modified

Jun 17, 2026

Status

Deferred

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