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CVE-2026-89756 mm/migrate: report RCU-tasks quiescent states in migrate_pages_batch()

🗓️ 11 Sep 2026 19:46:59Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 38 Views

Linux kernel kcompactd stalls Tasks-RCU grace period in migrate_pages_batch on PREEMPT kernels.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/migrate.c"
    ],
    "versions": [
      {
        "version": "8315f42295d2667a7f942f154b73a86fd7cb2227",
        "lessThan": "8c6d63d434ebb85c6cf3dac1e70a171b183c6614",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8315f42295d2667a7f942f154b73a86fd7cb2227",
        "lessThan": "4757542649af56d894e25e30f57cd497dffad53f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8315f42295d2667a7f942f154b73a86fd7cb2227",
        "lessThan": "4996a7bc01ef35570664854dac2530c604981039",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8315f42295d2667a7f942f154b73a86fd7cb2227",
        "lessThan": "5dc0daff0341c6baba19c38f47d299ac831d7e99",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8315f42295d2667a7f942f154b73a86fd7cb2227",
        "lessThan": "66734981b4d3c105223a13c827c9c73be18d91ad",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8315f42295d2667a7f942f154b73a86fd7cb2227",
        "lessThan": "efe8f86c0916f0f74eea74ae21a3b37f728c6bad",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/migrate.c"
    ],
    "versions": [
      {
        "version": "3.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.188",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.109",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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