CVE-2026-31783: spi: amlogic: spifc-a4: unregister ECC engine on probe failure and remove() callback

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-01 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: spi: amlogic: spifc-a4: unregister ECC engine on probe failure and remove() callback aml_sfc_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 products

Linux kernel: from 6.18.1 before 6.18.22; from 6.19 before 6.19.12; 6.18, 7.0-rc1, 7.0-rc2, 7.0-rc3, 7.0-rc4, 7.0-rc5 (+1) — fixed in 6.18.22, 6.19.12

How to fix

Upgrade to a fixed version: Linux kernel 6.18.22, 6.19.12. Check the vendor advisory for mitigations.

References

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