CVE-2026-98664 (GCVE-0-2026-98664)
Vulnerability from cvelistv5
Published
2026-10-18 15:44
Modified
2026-10-30 12:38
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: imu: adis16400: fix unprotected debugfs reads adis16400_serial_number_fops is open coded and never calls debugfs_file_get(), so debugfs_remove_recursive() does not wait for a read in progress and unbind frees the iio_dev underneath it. Commit ae1d37a9bb4b ("iio: imu: adis16400: use DEFINE_DEBUGFS_ATTRIBUTE instead of DEFINE_SIMPLE_ATTRIBUTE") converted product_id and flash_count to DEFINE_DEBUGFS_ATTRIBUTE, which protects itself, but moved all three files to debugfs_create_file_unsafe(). serial_number prints three registers as "%.4x-%.4x-%.4x" and DEFINE_DEBUGFS_ATTRIBUTE() formats a single u64, so it cannot be converted without changing what the file returns. adis16475 and adis16550 already use debugfs_create_file() for their open coded files. Use it here too.
References
Impacted products
Vendor Product Version
Linux Linux Version: ae1d37a9bb4bd8d9091a40d153143e99b115ee37
Version: ae1d37a9bb4bd8d9091a40d153143e99b115ee37
Version: ae1d37a9bb4bd8d9091a40d153143e99b115ee37
Version: ae1d37a9bb4bd8d9091a40d153143e99b115ee37
Version: ae1d37a9bb4bd8d9091a40d153143e99b115ee37
Version: ae1d37a9bb4bd8d9091a40d153143e99b115ee37
Version: ae1d37a9bb4bd8d9091a40d153143e99b115ee37
Version: ae1d37a9bb4bd8d9091a40d153143e99b115ee37
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: imu: adis16400: fix unprotected debugfs reads\n\nadis16400_serial_number_fops is open coded and never calls\ndebugfs_file_get(), so debugfs_remove_recursive() does not wait for a\nread in progress and unbind frees the iio_dev underneath it.\n\nCommit ae1d37a9bb4b (\"iio: imu: adis16400: use DEFINE_DEBUGFS_ATTRIBUTE\ninstead of DEFINE_SIMPLE_ATTRIBUTE\") converted product_id and\nflash_count to DEFINE_DEBUGFS_ATTRIBUTE, which protects itself, but\nmoved all three files to debugfs_create_file_unsafe().\n\nserial_number prints three registers as \"%.4x-%.4x-%.4x\" and\nDEFINE_DEBUGFS_ATTRIBUTE() formats a single u64, so it cannot be\nconverted without changing what the file returns. adis16475 and\nadis16550 already use debugfs_create_file() for their open coded\nfiles. Use it here too."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:38:33.465Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/48bb3c9b4a2fac64cb17c357418ebfbd4c9ac8ff"
        },
        {
          "url": "https://git.kernel.org/stable/c/69cc001761894c65a0eef1bb6df911b39d30d71e"
        },
        {
          "url": "https://git.kernel.org/stable/c/d32eb2161b452a25b03f915f431bdcb9722cd92c"
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        {
          "url": "https://git.kernel.org/stable/c/d3078aaef8af4648f94eeafde4b7b36efd9838d1"
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        {
          "url": "https://git.kernel.org/stable/c/e9b4c00f775a915b759b08bfe2c5e806a8301a59"
        },
        {
          "url": "https://git.kernel.org/stable/c/50e8d70ba0743f88afd7e49f9cebd1841ee677f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/f501302ebb9e1504162351b951fe3ae331c852ab"
        },
        {
          "url": "https://git.kernel.org/stable/c/d94787287a113a1326211647d5e0deed1e9de105"
        }
      ],
      "title": "iio: imu: adis16400: fix unprotected debugfs reads",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98664",
    "datePublished": "2026-10-18T15:44:32.940Z",
    "dateReserved": "2026-09-25T10:25:14.363Z",
    "dateUpdated": "2026-10-30T12:38:33.465Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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