CVE-2026-98668

Full vulnerability record from the local CVENow database.

Description

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.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-10-18 16:17:20.097000

Last modified

2026-10-30 13:21:17.183000

View original CVE JSON

{
  "id": "CVE-2026-98668",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-18T16:17:20.097",
  "lastModified": "2026-10-30T13:21:17.183",
  "vulnStatus": "Received",
  "cveTags": [],
  "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."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/iio/industrialio-buffer.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6",
              "lessThan": "b953b8d5e6f2d53e81faa0f3b42856cdf16fe563",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6",
              "lessThan": "b4f53cec8cc94b37601ce0bb2b272b6753beed98",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6",
              "lessThan": "b5c2f21f645e40c70fda2a4283e6f2a81e5cb9f2",
              "versionType": "git",
              "status": "affected"
            },
            {
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              "lessThan": "b134ef820610bd873c9d59999d9824710964ce82",
              "versionType": "git",
              "status": "affected"
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            {
              "version": "95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6",
              "lessThan": "3a87212b1a09a1fdd730ce5520f7b1fc0b488511",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6",
              "lessThan": "5330036bc68d23672bfcc16c60c54701ae123083",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/iio/industrialio-buffer.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "5.16",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "5.16",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.191",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.160",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.113",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.56",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.10",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/3a87212b1a09a1fdd730ce5520f7b1fc0b488511",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5330036bc68d23672bfcc16c60c54701ae123083",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b134ef820610bd873c9d59999d9824710964ce82",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b4f53cec8cc94b37601ce0bb2b272b6753beed98",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b5c2f21f645e40c70fda2a4283e6f2a81e5cb9f2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b953b8d5e6f2d53e81faa0f3b42856cdf16fe563",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}