highmem

  1. Linux Kernel CVE-2025-68231 Fix: HIGHMEM Mempool Order >0 Page Faults

    A small but consequential fix landed in the Linux kernel tree this winter to address CVE-2025-68231 — a bug in the mempool poisoning path that can trigger kernel page faults when mempools allocate order > 0 pages on systems configured with CONFIG_HIGHMEM. The patch corrects how the kernel maps...
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    • highmem linux kernel mempool poisoning page fault
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    • Forum: Security Alerts