Null Pointer Dereference in Linux Kernel's Memory Management

CVE-2026-53335

What is CVE-2026-53335?

A vulnerability in the Linux kernel related to memory management can lead to a null pointer dereference in DAMON LRU sort. The issue arises when the allocation of the damon_ctx object fails, but the code incorrectly assumes that allocation success is guaranteed. When the context allocation is unsuccessful, subsequent attempts to access the NULL pointer can result in application crashes or unexpected behavior. The vulnerability has been addressed by ensuring the system returns an error code when allocation fails, thus preventing NULL dereferences.

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