CVE-2025-38277

Summary

In the Linux kernel, the following vulnerability has been resolved:

mtd: nand: ecc-mxic: Fix use of uninitialized variable ret

If ctx->steps is zero, the loop processing ECC steps is skipped, and the variable ret remains uninitialized. It is later checked and returned, which leads to undefined behavior and may cause unpredictable results in user space or kernel crashes.

This scenario can be triggered in edge cases such as misconfigured geometry, ECC engine misuse, or if ctx->steps is not validated after initialization.

Initialize ret to zero before the loop to ensure correct and safe behavior regardless of the ctx->steps value.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux48e6633a9fa2400b53a964358753769f291a7eb0 < 4d9d6e4be09472aa72953caca3dbefdc27846170affected
LinuxLinux48e6633a9fa2400b53a964358753769f291a7eb0 < a0d9d9b5a4634e146ae41cb25667322e5c7d74d2affected
LinuxLinux48e6633a9fa2400b53a964358753769f291a7eb0 < 7a23cc510ecaabab4f6df7e9d910d16e279b72adaffected
LinuxLinux48e6633a9fa2400b53a964358753769f291a7eb0 < 49482f4a39620f6afedcd3f6aa9e0d558b6a460baffected
LinuxLinux48e6633a9fa2400b53a964358753769f291a7eb0 < d95846350aac72303036a70c4cdc69ae314aa26daffected
LinuxLinux5.18affected
LinuxLinux0 < 5.18unaffected
LinuxLinux6.1.142 <= 6.1.*unaffected
LinuxLinux6.6.94 <= 6.6.*unaffected
LinuxLinux6.12.34 <= 6.12.*unaffected
LinuxLinux6.15.3 <= 6.15.*unaffected
LinuxLinux6.16 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References