CVE-2026-98668 (GCVE-0-2026-98668)
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: buffer: Ensure bounce buffer used for unaligned case is zeroed. iio_push_to_buffers_with_ts_unaligned() leaks uninitialized heap memory to userspace if the data passed in is not a multiple of 8 bytes and the timestamp is enabled. Specify __GFP_ZERO for the devm_krealloc() to ensure any extra space is cleared.
References
Impacted products
Vendor Product Version
Linux Linux Version: 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6
Version: 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6
Version: 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6
Version: 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6
Version: 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6
Version: 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6
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{
  "containers": {
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          "programFiles": [
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              "version": "0",
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              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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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: buffer: Ensure bounce buffer used for unaligned case is zeroed.\n\niio_push_to_buffers_with_ts_unaligned() leaks uninitialized heap memory\nto userspace if the data passed in is not a multiple of 8 bytes and the\ntimestamp is enabled. Specify __GFP_ZERO for the devm_krealloc()\nto ensure any extra space is cleared."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:38:35.592Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b953b8d5e6f2d53e81faa0f3b42856cdf16fe563"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4f53cec8cc94b37601ce0bb2b272b6753beed98"
        },
        {
          "url": "https://git.kernel.org/stable/c/b5c2f21f645e40c70fda2a4283e6f2a81e5cb9f2"
        },
        {
          "url": "https://git.kernel.org/stable/c/b134ef820610bd873c9d59999d9824710964ce82"
        },
        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/5330036bc68d23672bfcc16c60c54701ae123083"
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      ],
      "title": "iio: buffer: Ensure bounce buffer used for unaligned case is zeroed.",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98668",
    "datePublished": "2026-10-18T15:44:55.291Z",
    "dateReserved": "2026-09-25T10:25:14.363Z",
    "dateUpdated": "2026-10-30T12:38:35.592Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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