CVE-2022-50830

auxdisplay: hd44780: Fix potential memory leak in hd44780_remove()

N/A
Published: December 30, 2025 at 12:10 PM UTC
Updated: June 17, 2026 at 05:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.11 ≤ v < 5.15.1005.11 ≤ v < 6.1.185.11 ≤ v < 6.2.55.11 ≤ v < 6.35.11718e05ed92ecac0d9d3954bcc8064527c3ce7565
Vendor states this is fixed in 5d407911e605702ffcc0e97a6db546592ab27dd0 (fixed)
Vendor states this is fixed in 6cd37f8232f5e169a723e1d5fbe3b2139c2ef763 (fixed)
Vendor states this is fixed in 8311961a1724bfc64390c539dedc31e067a80315 (fixed)
Vendor states this is fixed in ddf75a86aba2cfb7ec4497e8692b60c8c8fe0ee7 (fixed)
Vendor states this is fixed in 5.11 (unaffected)
Vendor states this is fixed in 5.15.100 (unaffected)
Vendor states this is fixed in 6.1.18 (unaffected)
Vendor states this is fixed in 6.2.5 (unaffected)
Vendor states this is fixed in 6.3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

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