Memory Allocation Warning in Linux Kernel Affecting Various Modules

CVE-2026-23219

What is CVE-2026-23219?

A warning may occur when the Linux kernel's memory allocation profiling debug is enabled, indicating that the alloc tag was not cleared during memory allocation processes. This warning indicates potential issues related to memory management within the kernel, particularly when certain conditions in the memory control group (memcg) allocation process are met. Affected modules are hinted through call trace outputs and can lead to confusion in memory handling, suggesting that appropriate hooks need to be added to ensure robust memory allocation management.

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