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CVE-2026-93267 RDMA/core: Fix potential use after free in uverbs_free_dmah()

🗓️ 24 Sep 2026 15:52:06Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 37 Views

Use-after-free in RDMA/core uverbs_free_dmah() due to improper restrack synchronization.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/infiniband/core/uverbs_std_types_dmah.c"
    ],
    "versions": [
      {
        "version": "d83edab562a496a42720902a1d2effccd05c37c5",
        "lessThan": "8b22722f45a29a7c0900b1d4d0bc5da5492ece10",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d83edab562a496a42720902a1d2effccd05c37c5",
        "lessThan": "bfc119a40c04bbe3daad826f2160ccbfae6c64ce",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d83edab562a496a42720902a1d2effccd05c37c5",
        "lessThan": "2696626a0be5877f445fb647c25ef43930c777e6",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/infiniband/core/uverbs_std_types_dmah.c"
    ],
    "versions": [
      {
        "version": "6.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.17",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.52",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.6",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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