CVE-2024-56771: mtd: spinand: winbond: Fix 512GW, 01GW, 01JW and 02JW ECC information
First published: Wed Jan 08 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: mtd: spinand: winbond: Fix 512GW, 01GW, 01JW and 02JW ECC information These four chips: * W25N512GW * W25N01GW * W25N01JW * W25N02JW all require a single bit of ECC strength and thus feature an on-die Hamming-like ECC engine. There is no point in filling a ->get_status() callback for them because the main ECC status bytes are located in standard places, and retrieving the number of bitflips in case of corrected chunk is both useless and unsupported (if there are bitflips, then there is 1 at most, so no need to query the chip for that). Without this change, a kernel warning triggers every time a bit flips.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.7<6.12.4 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 |
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Reference Links
- https://git.kernel.org/stable/c/234d5f75c3ae911b52c5e4442b8a87fbbd129836
- https://git.kernel.org/stable/c/fee9b240916df82a8b07aef0fdfe96785417a164
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56771
- https://nvd.nist.gov/vuln/detail/CVE-2024-56771
- https://launchpad.net/bugs/cve/CVE-2024-56771
- https://security-tracker.debian.org/tracker/CVE-2024-56771
- https://ubuntu.com/security/CVE-2024-56771
- https://git.kernel.org/linus/fee9b240916df82a8b07aef0fdfe96785417a164
Frequently Asked Questions
What is the severity of CVE-2024-56771?
CVE-2024-56771 has been classified with a moderate severity due to its impact on specific hardware compatibility.
How do I fix CVE-2024-56771?
To address CVE-2024-56771, you should update the Linux kernel to a version above 6.12.4 that includes the necessary patches.
Which systems are affected by CVE-2024-56771?
CVE-2024-56771 affects versions of the Linux kernel between 6.7 and 6.12.4.
What components does CVE-2024-56771 involve?
CVE-2024-56771 specifically involves the spinand subsystem related to certain Winbond NAND flash chips.
Is there a workaround for CVE-2024-56771?
Currently, there are no known workarounds for CVE-2024-56771, and the best course of action is to apply the kernel update.
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