Stride Validation Bypass in Linux Kernel SimpleDRM

Executive Summary

This vulnerability in the Linux kernel involves a flaw in the simpledrm driver where the computed stride value is not properly validated against the maximum allowed value (INT_MAX). This could potentially lead to memory corruption or other issues if an attacker provides a maliciously crafted stride value.

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Detection Guidance

This vulnerability is specific to the Linux kernel's simpledrm driver and involves improper stride validation. Detection requires checking the kernel version and examining the simpledrm driver for the affected code path. No direct network detection commands are applicable.

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Impact Analysis

If exploited, this vulnerability could allow an attacker to cause memory corruption, leading to system crashes, privilege escalation, or unauthorized access to sensitive data. Users running affected Linux kernel versions with the simpledrm driver enabled may be at risk.

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Mitigation Strategies

Update the Linux kernel to a patched version that resolves the stride validation issue in the simpledrm driver. Monitor vendor advisories for kernel updates addressing CVE-2026-93244.

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