CVE-2026-98886 (GCVE-0-2026-98886)
Vulnerability from cvelistv5
Published
2026-10-23 11:37
Modified
2026-10-26 06:56
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/gma500: return errors from Oaktrail HDMI I2C reads xfer_read() waits for the HDMI I2C transaction to reach I2C_TRANSACTION_DONE, but it ignores both timeout and signal returns from wait_for_completion_interruptible_timeout(). If the interrupt never advances the transaction state, the loop can wait forever. Return -ETIMEDOUT when the completion wait expires, propagate interrupted waits, and make the I2C master_xfer callback return the first transfer error instead of reporting a successful message count.
Impacted products
Vendor Product Version
Linux Linux Version: 1e585b52fd8ea59792634bc31d227eb3456af22e
Version: 1e585b52fd8ea59792634bc31d227eb3456af22e
Version: 1e585b52fd8ea59792634bc31d227eb3456af22e
Version: 1e585b52fd8ea59792634bc31d227eb3456af22e
Version: 1e585b52fd8ea59792634bc31d227eb3456af22e
Version: 1e585b52fd8ea59792634bc31d227eb3456af22e
Version: 1e585b52fd8ea59792634bc31d227eb3456af22e
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{
  "containers": {
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          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c"
          ],
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          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "3.1"
            },
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              "version": "0",
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            {
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              "status": "unaffected",
              "version": "5.15.222",
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            },
            {
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              "status": "unaffected",
              "version": "6.1.189",
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            },
            {
              "lessThanOrEqual": "6.6.*",
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              "status": "unaffected",
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gma500: return errors from Oaktrail HDMI I2C reads\n\nxfer_read() waits for the HDMI I2C transaction to reach\nI2C_TRANSACTION_DONE, but it ignores both timeout and signal returns from\nwait_for_completion_interruptible_timeout().  If the interrupt never\nadvances the transaction state, the loop can wait forever.\n\nReturn -ETIMEDOUT when the completion wait expires, propagate interrupted\nwaits, and make the I2C master_xfer callback return the first transfer\nerror instead of reporting a successful message count."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-26T06:56:10.643Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/09a950950e7e4e74e021e60941c8e816ef1b4f71"
        },
        {
          "url": "https://git.kernel.org/stable/c/898d209157fe2a245f7d9fe28c5921037d8b5033"
        },
        {
          "url": "https://git.kernel.org/stable/c/15c6d7f7127a53b7312232178ecf03e5850161d2"
        },
        {
          "url": "https://git.kernel.org/stable/c/8add43887cca1fe11a0ded62199ce726901d3f20"
        },
        {
          "url": "https://git.kernel.org/stable/c/f85e8224bd4e1a0939cbfe13a6220fbddf61127c"
        },
        {
          "url": "https://git.kernel.org/stable/c/c268df0653ab07bafc3d191e74ea097e3d9b9e69"
        },
        {
          "url": "https://git.kernel.org/stable/c/9b5ce5c496efd20c1c662cedba88465d39ec1f93"
        }
      ],
      "title": "drm/gma500: return errors from Oaktrail HDMI I2C reads",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98886",
    "datePublished": "2026-10-23T11:37:43.338Z",
    "dateReserved": "2026-09-25T10:25:14.378Z",
    "dateUpdated": "2026-10-26T06:56:10.643Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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