Out-of-Bounds Write Vulnerability in Linux Kernel Affects Network Messaging

CVE-2026-98419

What is CVE-2026-98419?

A vulnerability has been identified in the Linux kernel relating to improper buffer handling in network messaging. Specifically, an out-of-bounds write occurs during the execution of the reset_per_cpu_data() function. When calculating the size of a message, an incorrect computation leads to memory corruption by exceeding the allocated buffer. This flaw can potentially affect the integrity of network message handling, thereby impacting system stability and security. The issue has been mitigated by ensuring that memory allocation accurately reflects the payload size, preventing writes beyond the buffer limits.

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