CyberRota Analysis
AI-GeneratedThe vulnerability arises from a race condition in the FIOSSHMLPGCNF ioctl operation, which allows unprivileged local users to set conflicting page sizes for a largepage shared memory object without proper synchronization. This can lead to an inconsistent state of the memory object, enabling attackers to escalate their privileges on the system. Organizations using affected systems should prioritize remediation to mitigate the risk of local privilege escalation.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
The FIOSSHMLPGCNF ioctl(2) operation configures the page size for a largepage shared memory object. This is intended to be used immediately after creating the object, before any memory is allocated for the object. The handler checked whether a page size had already been configured without holding the rangelock. Two concurrent callers could both observe an unconfigured object and set conflicting page sizes, leaving the object in an inconsistent state. An unprivileged local user can exploit this race to escalate privileges.