CVE-2026-63861
Published: July 22, 2026Last modified: July 22, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.175-r0) |
| 25 LTS | linux-lts | Fixed (6.12.92-r0) | |
| Stream | linux-lts | Fixed (6.18.35-r1) |
References
- https://git.kernel.org/stable/c/3e79a563377a319d016ed0d3cd8c43171670c0f3
- https://git.kernel.org/stable/c/6aea4a99410615912d80a4ba0827c4e8d4a8312d
- https://git.kernel.org/stable/c/86357e1d0157d8408b78f8768a69ab263d010316
- https://git.kernel.org/stable/c/98cf4b58299e0c6a537c68cd32155d9e7569e7cb
- https://git.kernel.org/stable/c/ab00febad191d7a4400aa1c3468279fb508258d4
- https://git.kernel.org/stable/c/e0b049bd7b279d7b6ad22a637cddced93198a51b