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Tracker / CVE-2026-53374

CVE-2026-53374

Alta 8.8

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: zero-initialize GART table on allocation GART TLB is flushed after unmapping but not after mapping. Since amdgpu_bo_create_kernel() does not zero-initialize the buffer, when a single PTE is written the TLB may speculatively load other uninitialized entries from the same cacheline. Those garbage entries can appear valid, and a subsequent write to another PTE in the same cacheline may cause the GPU to use a stale garbage PTE from the TLB. Fix this by calling memset_io() to zero-initialize the GART table with gart_pte_flags immediately after allocation. Using AMDGPU_GEM_CREATE_VRAM_CLEARED, SDMA-based clear will not work since SDMA needs GART to be initialized to work. (cherry picked from commit d9af8263b82b6eaa60c5718e0c6631c5037e4b24)

Prodotti e versioni affette

linux linux_kernel
linux linux_kernel · 4.2 → 6.1.175
linux linux_kernel · 6.13 → 6.18.32
linux linux_kernel · 6.19 → 7.0.9
linux linux_kernel · 6.2 → 6.6.140
linux linux_kernel · 6.7 → 6.12.90

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