CVE-2026-98676 (GCVE-0-2026-98676)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:45 – Updated: 2026-10-19 09:23
VLAI
Title
iio: adc: ade9000: fix NULL pointer dereference in clkout registration
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: adc: ade9000: fix NULL pointer dereference in clkout registration ade9000_setup_clkout() passes NULL as the register address when registering a divider clock. During clock registration, the common clock framework calls clk_divider_recalc_rate(), which dereferences the address through readl(). As a result, probing an ADE9000 configured as a clock provider with an external input clock crashes. CLKOUT passes CLKIN through without changing its rate. Register it as a 1:1 fixed-factor clock, which does not require register access. This change does not affect the configuration using the internal clock, for which the driver does not register a clock provider.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6820 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 81de7b4619fc3682a3bedaa7e8d6b2d67ab4e10a , < d2400175228fbc10b29c49a7b5f70a7e80d144dd (git)
Affected: 81de7b4619fc3682a3bedaa7e8d6b2d67ab4e10a , < 134aa31a8d4e71f6ab1d155ad7b4502508832f72 (git)
Affected: 81de7b4619fc3682a3bedaa7e8d6b2d67ab4e10a , < 49ee1c6a3ebda6b7de06b2961b0e09c1c3fe536a (git)
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Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.56 , ≤ 6.18.* (semver)
Unaffected: 7.2.10 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/iio/adc/ade9000.c"
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              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: ade9000: fix NULL pointer dereference in clkout registration\n\nade9000_setup_clkout() passes NULL as the register address when\nregistering a divider clock. During clock registration, the common\nclock framework calls clk_divider_recalc_rate(), which dereferences\nthe address through readl(). As a result, probing an ADE9000 configured\nas a clock provider with an external input clock crashes.\n\nCLKOUT passes CLKIN through without changing its rate. Register it as\na 1:1 fixed-factor clock, which does not require register access.\n\nThis change does not affect the configuration using the internal clock,\nfor which the driver does not register a clock provider."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:23:45.848Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98676",
    "datePublished": "2026-10-18T15:45:31.286Z",
    "dateReserved": "2026-09-25T10:25:14.363Z",
    "dateUpdated": "2026-10-19T09:23:45.848Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "product_status:under_investigation": "1",
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      "title": "iio: adc: ade9000: fix NULL pointer dereference in clkout registration",
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: ade9000: fix NULL pointer dereference in clkout registration\n\nade9000_setup_clkout() passes NULL as the register address when\nregistering a divider clock. During clock registration, the common\nclock framework calls clk_divider_recalc_rate(), which dereferences\nthe address through readl(). As a result, probing an ADE9000 configured\nas a clock provider with an external input clock crashes.\n\nCLKOUT passes CLKIN through without changing its rate. Register it as\na 1:1 fixed-factor clock, which does not require register access.\n\nThis change does not affect the configuration using the internal clock,\nfor which the driver does not register a clock provider."
          }
        ],
        "id": "CVE-2026-98676",
        "lastModified": "2026-10-19T10:19:32.067",
        "metrics": {},
        "published": "2026-10-18T16:17:20.950",
        "references": [
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: iio: adc: ade9000: fix NULL pointer dereference in clkout registration",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98676.json",
      "version": "3"
    }
  }
}



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