CVE-2026-53374
CVE CVE-2026-53374EUVD EUVD-2026-45447Published 2026-07-19T10:01:58.000ZLast changed 2026-08-05T12:35:18.000ZCVSS 8.8
What the advisory describes
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)
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <8ae8b9e74bab94aab1d79f1688129bcc61c8b29a; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <e6c2e6c2e1fa066968a16aca1cb66cd1bdde7741; patch: 6.1.175; patch: 7.0.9; patch: 0; patch: 7.1; patch: 6.12.90; patch: 6.6.140; 4.2; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <b17175d0a375b3ed5e81597dac4983fdb46e478d; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <91fbb5e635c8fb1b49e15c19da06480089ef719f; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <40df11255d71b02e20e70579f1b12b687e396e26; patch: 6.18.32; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <791941be5da125d9a1b228582bfdc300c05d05b3
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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