CVE-2026-63861 spi: mtk-snfi: unregister ECC engine on probe failure and remove() callback

What is CVE-2026-63861?

CVE-2026-63861 is a medium-severity vulnerability in Linux kernel, published on 19 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Which versions are affected by CVE-2026-63861?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-63861?

Apply the vendor's patch.

Is CVE-2026-63861 being exploited?

There is no known exploitation of CVE-2026-63861 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2026-63861, DEBIAN-CVE-2026-63861, GHSA-g8cm-gmx3-562c, UBUNTU-CVE-2026-63861.