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CVE-2026-74365 nvdimm/btt: Handle preemption in BTT lane acquisition

🗓️ 15 Aug 2026 05:58:47Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 35 Views

BTT lane spinlock allows concurrent access causing data corruption; replaced with per-lane mutex.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "Documentation/driver-api/nvdimm/btt.rst",
      "drivers/nvdimm/nd.h",
      "drivers/nvdimm/region_devs.c"
    ],
    "versions": [
      {
        "version": "f23859748e3d530217b197e146a9ac84faf0a282",
        "lessThan": "fd7a97b2514cfc4b4cc067a27dd39bde2a8b1735",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6f50b414f1a0d790f11a6438a3ad6d0577eb2c18",
        "lessThan": "73e35c1bdfa160b41fdbe204e02325f0687de506",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "36c75ce3bd299878fd9b238e9803d3817ddafbf3",
        "lessThan": "417918783bcfe0be135019df16a267b3af442efd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "36c75ce3bd299878fd9b238e9803d3817ddafbf3",
        "lessThan": "5c53406098b599c420b031e6ec5ba8a2f3794c50",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "36c75ce3bd299878fd9b238e9803d3817ddafbf3",
        "lessThan": "4eafa810b042d985ec6bbf5b514414e73cee6f6f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "36c75ce3bd299878fd9b238e9803d3817ddafbf3",
        "lessThan": "8d4b989d9c9afe5f185aa5853b666fc4617afe9e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2577fece583c7c05cda7ad50dde7638c962665e1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "40ba3fa21250e361bdd8f00800b3e2cb6160de95",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b0e7a935739f33ed2bd6868b89f97dd4c2683c26",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "66eb7b7f23dd9aec5356e7054dd3596ae7648ff5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b27751fb1f271bbb78d5993c0b10011628e40e18",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.1.63",
        "lessThan": "6.1.178",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.6.2",
        "lessThan": "6.6.145",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "4.19.299",
        "lessThan": "4.20",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.4.261",
        "lessThan": "5.5",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.10.201",
        "lessThan": "5.11",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.15.139",
        "lessThan": "5.16",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.5.12",
        "lessThan": "6.6",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "Documentation/driver-api/nvdimm/btt.rst",
      "drivers/nvdimm/nd.h",
      "drivers/nvdimm/region_devs.c"
    ],
    "versions": [
      {
        "version": "6.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.97",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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17 Aug 2026 05:46Current
CVSS 3.17.3
EPSS0.00132
35