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CVE-2026-89940 iio: buffer: Tie IIO dma fence lock lifetime to the fence

🗓️ 16 Sep 2026 10:32:28Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 39 Views

Use-after-free in Linux kernel IIO buffer where iio_dma_fence lock outlives iio_dmabuf_priv.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/iio/industrialio-buffer.c"
    ],
    "versions": [
      {
        "version": "3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f",
        "lessThan": "6865d79fca17a80fbd60c12550ca9a5e0e20e0eb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f",
        "lessThan": "510497e31be4f241103507315a859e2085ccb081",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f",
        "lessThan": "8b3e221590181a8beb3735bbabf166df02c839b5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f",
        "lessThan": "f25ec4627d935dedfb5fe83bd2c2678cdcc19611",
        "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/iio/industrialio-buffer.c"
    ],
    "versions": [
      {
        "version": "6.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.11",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.110",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.51",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.5",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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16 Sep 2026 14:40Current
CVSS 3.17.8
EPSS0.0017
39