CVE-2026-68473

HighCVSS 7.8

Published: 15/08/2026(UTC)Updated: 17/08/2026(UTC)Translated: 15/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.15%

5th percentile - higher than 5% of all known CVEs

Summary

In the Linux kernel, the mask_user_address() function incorrectly checks for CONFIG_E500 instead of CONFIG_PPC_E500, preventing mask_user_address_isel() from being used on E500 hardware. The fix corrects the check to use the proper name.

Risk Assessment

Incorrect configuration may lead to improper user address masking on E500 platforms, potentially causing system errors or security issues related to memory access.

Recommendation

Apply the Linux kernel update containing the fix for CVE-2026-68473. Ensure systems using PowerPC E500 architecture have the updated kernel.

Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: powerpc/uaccess: correct check for CONFIG_PPC_E500 in mask_user_address() mask_user_address() incorrectly checks for CONFIG_E500 instead of CONFIG_PPC_E500, causing mask_user_address_isel() to not be used on E500 hardware. Fix the check to use the correct name.