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CVE-2026-46229: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Clear VRAM on allocation to prevent stale data exposure KFD VRAM allocations set AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE but not AMDGPU_GEM_CREATE_VRAM_CLEARED, leaving freshly allocated VRAM with stale data from prior use observable by compute kernels. The GEM ioctl path already sets VRAM_CLEARED for all userspace allocations via amdgpu_gem_create_ioctl() and amdgpu_mode_dumb_create(). The KFD path was missing this flag, allowing stale page table remnants to leak into user buffers. This causes crashes in RCCL P2P transport where non-zero data in ptrExchange/head/tail fields corrupts the protocol handshake.

    Засегнати продукти

    • Linux Linux: 6856e4b65f64eeb3f17148f79b36c1d60c627529 преди 6bcf59545c84a5105d14d59f40069ef4c033584e; 6856e4b65f64eeb3f17148f79b36c1d60c627529 преди 1db431380879fd9d28b763a88a0c0431be5be8df; 6856e4b65f64eeb3f17148f79b36c1d60c627529 преди 32b153658f017ad2f5bf8aab479e8d16ac95bc3a; 6856e4b65f64eeb3f17148f79b36c1d60c627529 преди 77d0b5d11387071770246fd0185a69fa28e8e109; 6856e4b65f64eeb3f17148f79b36c1d60c627529 преди 047d44d8d29a6a1a5757256837aa9dd78e3cd0b5; 6856e4b65f64eeb3f17148f79b36c1d60c627529 преди ad52d61d82181dbdb7f05826de38352d5e550cc2
    • Linux Linux: 5.4; преди 5.4; 6.1.191 до 6.1.*; 6.6.140 до 6.6.*; 6.12.90 до 6.12.*; 6.18.32 до 6.18.*; 7.0.9 до 7.0.*; от 7.1 нататък

    История

    • 28 май 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-46229: Linux | freedomonline.bg