Buffer Handling Vulnerability in Linux Kernel Affecting ISOs

CVE-2026-98879

What is CVE-2026-98879?

A vulnerability in the Linux kernel's ISO filesystem (isofs) could lead to issues when handling block sizes larger than the page size. This flaw can trigger a critical error during the mounting process, particularly at the first read call, where the system might encounter an unexpected bug condition if the offset exceeds the allowed size. Proper handling of buffer heads is essential to prevent system instability and ensure reliable file access.

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