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.
Affected versions
Linux kernel versions
5.11
and later are affected. Fixed in
5.15.100,
6.1.18,
6.2.5,
6.3
and their respective stable series.
References
The following references provide additional information about CVE-2022-50830 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/5d407911e605702ffcc0e97a6db546592ab27dd0
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PatchKernel patch commithttps://git.kernel.org/stable/c/6cd37f8232f5e169a723e1d5fbe3b2139c2ef763
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PatchKernel patch commithttps://git.kernel.org/stable/c/8311961a1724bfc64390c539dedc31e067a80315
Frequently asked questions
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What is CVE-2022-50830?
CVE-2022-50830 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.11 onward and has been patched in 5.15.100, 6.1.18, 6.2.5 and others. CVE-2022-50830 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2022-50830?
Yes — CVE-2022-50830 has been patched. Fixed versions include 5.15.100, 6.1.18, 6.2.5 and others. If you are running Linux kernel 5.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-50830 actively exploited?
No — CVE-2022-50830 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.