CVE-2022-50830
auxdisplay: hd44780: Fix potential memory leak in hd44780_remove()
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.24% · top 84% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 718e05ed92ecac0d9d3954bcc8064527c3ce7565 – < 8311961a1724bfc64390c539dedc31e067a80315
- affected 718e05ed92ecac0d9d3954bcc8064527c3ce7565 – < 6cd37f8232f5e169a723e1d5fbe3b2139c2ef763
- affected 718e05ed92ecac0d9d3954bcc8064527c3ce7565 – < 5d407911e605702ffcc0e97a6db546592ab27dd0
- affected 718e05ed92ecac0d9d3954bcc8064527c3ce7565 – < ddf75a86aba2cfb7ec4497e8692b60c8c8fe0ee7
- affected 5.11
- unaffected < 5.11
- unaffected 5.15.100 – ≤ 5.15.*
- unaffected 6.1.18 – ≤ 6.1.*
- unaffected 6.2.5 – ≤ 6.2.*
- unaffected 6.3 – ≤ *
References (4)
- https://git.kernel.org/stable/c/8311961a1724bfc64390c539dedc31e067a80315 (opens in a new tab)
- https://git.kernel.org/stable/c/6cd37f8232f5e169a723e1d5fbe3b2139c2ef763 (opens in a new tab)
- https://git.kernel.org/stable/c/5d407911e605702ffcc0e97a6db546592ab27dd0 (opens in a new tab)
- https://git.kernel.org/stable/c/ddf75a86aba2cfb7ec4497e8692b60c8c8fe0ee7 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2022-50830)Record last updated .