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CVE-2025-71078 powerpc/64s/slb: Fix SLB multihit issue during SLB preload

🗓️ 13 Jan 2026 15:34:43Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

Fix SLB multihit during SLB preload when processes migrate without MMU context switch on hash memory

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/powerpc/include/asm/book3s/64/mmu-hash.h",
      "arch/powerpc/kernel/process.c",
      "arch/powerpc/mm/book3s64/internal.h",
      "arch/powerpc/mm/book3s64/mmu_context.c",
      "arch/powerpc/mm/book3s64/slb.c"
    ],
    "versions": [
      {
        "version": "5434ae74629af58ad0fc27143a9ea435f7734410",
        "lessThan": "01324c0328181b94cf390bda22ff91c75126ea57",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5434ae74629af58ad0fc27143a9ea435f7734410",
        "lessThan": "2e9a95d60f1df7b57618fd5ef057aef331575bd2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5434ae74629af58ad0fc27143a9ea435f7734410",
        "lessThan": "c9f865022a1823d814032a09906e91e4701a35fc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5434ae74629af58ad0fc27143a9ea435f7734410",
        "lessThan": "b13a3dbfa196af68eae2031f209743735ad416bf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5434ae74629af58ad0fc27143a9ea435f7734410",
        "lessThan": "895123c309a34d2cfccf7812b41e17261a3a6f37",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5434ae74629af58ad0fc27143a9ea435f7734410",
        "lessThan": "4ae1e46d8a290319f33f71a2710a1382ba5431e8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5434ae74629af58ad0fc27143a9ea435f7734410",
        "lessThan": "00312419f0863964625d6dcda8183f96849412c6",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/powerpc/include/asm/book3s/64/mmu-hash.h",
      "arch/powerpc/kernel/process.c",
      "arch/powerpc/mm/book3s64/internal.h",
      "arch/powerpc/mm/book3s64/mmu_context.c",
      "arch/powerpc/mm/book3s64/slb.c"
    ],
    "versions": [
      {
        "version": "4.20",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.20",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.248",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.198",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.160",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.120",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.64",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.4",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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05 Aug 2026 12:11Current
CVSS 3.17.8
EPSS0.00125
33