{"id":"CVE-2026-53374","revision":null,"records":[{"revision":"2afb7b76fe3949a7945d8e99f1d9a018","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-53374","aliases":[],"title":"drm/amdgpu: zero-initialize GART table on allocation","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: zero-initialize GART table on allocation\n\nGART TLB is flushed after unmapping but not after mapping. Since\namdgpu_bo_create_kernel() does not zero-initialize the buffer, when a\nsingle PTE is written the TLB may speculatively load other uninitialized\nentries from the same cacheline. Those garbage entries can appear valid,\nand a subsequent write to another PTE in the same cacheline may cause the\nGPU to use a stale garbage PTE from the TLB.\n\nFix this by calling memset_io() to zero-initialize the GART table with\ngart_pte_flags immediately after allocation.\n\nUsing AMDGPU_GEM_CREATE_VRAM_CLEARED, SDMA-based clear will not work\nsince SDMA needs GART to be initialized to work.\n\n(cherry picked from commit d9af8263b82b6eaa60c5718e0c6631c5037e4b24)","state":0,"publishedAt":"2026-07-19T10:01:58.292+00:00","modifiedAt":"2026-10-19T20:07:45.1+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c\"\n ],\n \"versions\": [\n {\n \"version\": \"d38ceaf99ed015f2a0b9af3499791bd3a3daae21\",\n \"lessThan\": \"40df11255d71b02e20e70579f1b12b687e396e26\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d38ceaf99ed015f2a0b9af3499791bd3a3daae21\",\n \"lessThan\": \"91fbb5e635c8fb1b49e15c19da06480089ef719f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d38ceaf99ed015f2a0b9af3499791bd3a3daae21\",\n \"lessThan\": \"8ae8b9e74bab94aab1d79f1688129bcc61c8b29a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d38ceaf99ed015f2a0b9af3499791bd3a3daae21\",\n \"lessThan\": \"b17175d0a375b3ed5e81597dac4983fdb46e478d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d38ceaf99ed015f2a0b9af3499791bd3a3daae21\",\n \"lessThan\": \"791941be5da125d9a1b228582bfdc300c05d05b3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d38ceaf99ed015f2a0b9af3499791bd3a3daae21\",\n \"lessThan\": \"e6c2e6c2e1fa066968a16aca1cb66cd1bdde7741\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4.2\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.2\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.175\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.140\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.90\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.32\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.0.9\",\n \"lessThanOrEqual\": \"7.0.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/40df11255d71b02e20e70579f1b12b687e396e26","https://git.kernel.org/stable/c/91fbb5e635c8fb1b49e15c19da06480089ef719f","https://git.kernel.org/stable/c/8ae8b9e74bab94aab1d79f1688129bcc61c8b29a","https://git.kernel.org/stable/c/b17175d0a375b3ed5e81597dac4983fdb46e478d","https://git.kernel.org/stable/c/791941be5da125d9a1b228582bfdc300c05d05b3","https://git.kernel.org/stable/c/e6c2e6c2e1fa066968a16aca1cb66cd1bdde7741"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53374","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-53374","identifiers":["CVE-2026-53374"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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