CVE-2026-63861
In the Linux kernel, the following vulnerability has been resolved: spi: mtk-snfi: unregister ECC engine on probe failure and remove() callback mtk_snand_probe() registers the on-host NAND ECC engine, but teardown was missing from both probe unwind and remove-time cleanup. Add a devm cleanup action after successful registration so nand_ecc_unregister_on_host_hw_engine() runs automatically on probe failures and during device removal.
Affected versions
Linux kernel versions
5.19
and later are affected. Fixed in
6.1.175,
6.6.141,
6.12.91,
6.18.33,
7.0.10,
7.1
and their respective stable series.
References
6 totalFrequently asked questions
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What is CVE-2026-63861?
CVE-2026-63861 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.19 onward and has been patched in 6.1.175, 6.6.141, 6.12.91 and others. CVE-2026-63861 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-2026-63861?
Yes — CVE-2026-63861 has been patched. Fixed versions include 6.1.175, 6.6.141, 6.12.91 and others. If you are running Linux kernel 5.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-63861 actively exploited?
No — CVE-2026-63861 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.