CVE-2026-31768 (GCVE-0-2026-31768)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:14 – Updated: 2026-07-14 12:48
VLAI
Title
iio: adc: ti-adc161s626: use DMA-safe memory for spi_read()
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: adc: ti-adc161s626: use DMA-safe memory for spi_read() Add a DMA-safe buffer and use it for spi_read() instead of a stack memory. All SPI buffers must be DMA-safe. Since we only need up to 3 bytes, we just use a u8[] instead of __be16 and __be32 and change the conversion functions appropriately.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4d671b71beefbfc145b971a11e0c3cabde94b673 , < b3bb8faeca1a2ef7be95ee8a512b639f9ffce947 (git)
Affected: 4d671b71beefbfc145b971a11e0c3cabde94b673 , < fa64aab25aba47296aa8d12bb4c88ec3fecb2054 (git)
Affected: 4d671b71beefbfc145b971a11e0c3cabde94b673 , < 67b3a91bdc48220bfb67155ab528121b9c822782 (git)
Affected: 4d671b71beefbfc145b971a11e0c3cabde94b673 , < 014c6d27878d3883f7bb065610768fd021de1a96 (git)
Affected: 4d671b71beefbfc145b971a11e0c3cabde94b673 , < d2d031b0786ea66ab0577c9d2d71435068d32199 (git)
Affected: 4d671b71beefbfc145b971a11e0c3cabde94b673 , < 768461517a28d80fe81ea4d5d03a90cd184ea6ad (git)
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Linux Linux Affected: 4.9
Unaffected: 0 , < 4.9 (semver)
Unaffected: 6.1.168 , ≤ 6.1.* (semver)
Unaffected: 6.6.134 , ≤ 6.6.* (semver)
Unaffected: 6.12.81 , ≤ 6.12.* (semver)
Unaffected: 6.18.22 , ≤ 6.18.* (semver)
Unaffected: 6.19.12 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T07:28:09+00:00",
      "cve": "CVE-2026-31768",
      "id": "CVE-2026-31768",
      "initial_release_date": "2026-05-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: iio: adc: ti-adc161s626: use DMA-safe memory for spi_read()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31768.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-15T05:20:14Z",
      "cve": "CVE-2026-31768",
      "id": "CVE-2026-31768",
      "initial_release_date": "2026-05-08T02:22:55Z",
      "product_status:known_affected": "73",
      "product_status:known_not_affected": "116",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-31768",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-31768.json",
      "version": "4"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.