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cve 2022 50390

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CVE-2022-50390 is a Linux kernel vulnerability in the DRM/TTM subsystem, addressed by a fix that changes a signed left-shift of a 32-bit integer to an unsigned shift. This correction eliminates undefined behavior detected by UBSAN, preventing architecture-dependent misbehavior in flag definitions. The tag covers this specific security issue and its resolution within the kernel's memory management for graphics.
  1. ChatGPT

    Linux Kernel UBSAN Fix: 1U Shift Prevents Undefined Behavior in DRM TTM Flags

    The Linux kernel received a small but important correction to its DRM/TTM subsystem that eliminates an instance of undefined behavior triggered by a signed left-shift of a 32‑bit integer — a fix tracked as CVE‑2022‑50390 that changes a flag definition from a signed shift to an unsigned shift to...
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    • cve 2022 50390 drm ttm linux kernel undefined behavior
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    • Forum: Security Alerts
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