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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.

PUBLISHED Reserved 2025-12-30 | Published 2025-12-30 | Updated 2025-12-30 | Assigner Linux

Product status

Default status
unaffected

718e05ed92ecac0d9d3954bcc8064527c3ce7565 (git) before 8311961a1724bfc64390c539dedc31e067a80315
affected

718e05ed92ecac0d9d3954bcc8064527c3ce7565 (git) before 6cd37f8232f5e169a723e1d5fbe3b2139c2ef763
affected

718e05ed92ecac0d9d3954bcc8064527c3ce7565 (git) before 5d407911e605702ffcc0e97a6db546592ab27dd0
affected

718e05ed92ecac0d9d3954bcc8064527c3ce7565 (git) before ddf75a86aba2cfb7ec4497e8692b60c8c8fe0ee7
affected

Default status
affected

5.11
affected

Any version before 5.11
unaffected

5.15.100 (semver)
unaffected

6.1.18 (semver)
unaffected

6.2.5 (semver)
unaffected

6.3 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/8311961a1724bfc64390c539dedc31e067a80315

git.kernel.org/...c/6cd37f8232f5e169a723e1d5fbe3b2139c2ef763

git.kernel.org/...c/5d407911e605702ffcc0e97a6db546592ab27dd0

git.kernel.org/...c/ddf75a86aba2cfb7ec4497e8692b60c8c8fe0ee7

cve.org (CVE-2022-50830)

nvd.nist.gov (CVE-2022-50830)

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Data based on CVE®. Copyright © 1999-2025, The MITRE Corporation. All rights reserved.