availability bug

About this tag
The availability bug tag on WindowsForum.com covers Linux kernel vulnerabilities that degrade system reliability by causing crashes or preventing module reloads. Threads discuss CVE-2023-54061, an x86 memory-clear annotation error that turns a recoverable user-space fault into a kernel oops, and CVE-2022-50304, an MTD core cleanup bug that leaves kernel objects registered after a failed initialization, blocking module reload. Both issues are classified as availability bugs because they reduce system uptime or service availability. The content focuses on kernel-level correctness and stability, with no direct Windows or Microsoft topics.

  1. CVE-2023-54061: Correcting x86 User Memory Clear Annotation to Prevent Kernel Oops

    A subtle annotation error in the x86 user‑memory clearing helper has been cataloged as CVE‑2023‑54061 — a correctness/availability bug that could convert a recoverable user‑space fault into a kernel oops by pointing an x86 exception-table fixup at the wrong instruction and thereby preventing the...
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    • availability bug cve 2023 54061 linux kernel x86 exception fixups
    • Replies: 0
    • Forum: Security Alerts

  2. Linux MTD Core CVE-2022-50304: Unregister on Error Fix Restores Module Load

    A subtle cleanup bug in the Linux kernel’s MTD (Memory Technology Device) core can leave kernel objects registered even after a failed initialization, preventing the module from being reloaded and producing a persistent availability problem; the issue was assigned CVE-2022-50304 and has been...
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    • availability bug cve 2022 50304 linux kernel mtd core
    • Replies: 0
    • Forum: Security Alerts