github - ghsa-9qq8-wxc9-p23m

GHSA-9QQ8-WXC9-P23M

Vulnerability from github – Published: 2025-12-24 15:30 – Updated: 2025-12-24 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer

In gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach gl861_i2c_master_xfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash.

Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

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{
  "affected": [],
  "aliases": [
    "CVE-2023-54066"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-24T13:16:08Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer\n\nIn gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf\nis null and msg[i].len is zero, former checks on msg[i].buf would be\npassed. Malicious data finally reach gl861_i2c_master_xfer. If accessing\nmsg[i].buf[0] without sanity check, null ptr deref would happen.\nWe add check on msg[i].len to prevent crash.\n\nSimilar commit:\ncommit 0ed554fd769a\n(\"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\")",
  "id": "GHSA-9qq8-wxc9-p23m",
  "modified": "2025-12-24T15:30:36Z",
  "published": "2025-12-24T15:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54066"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a33fc57133d6f39d62285df6706aeb1714967f1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/578b67614ae0e4fba3945b66a4c8f9ae77115bcb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/72af676551efe820e309a6c7681c2c4372f37376"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b97719a66970601cd3151a3e2020f4454a1c4ff6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dfcd3c010209927b9f45b860f046635dc32e32e1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2023-54066 (GCVE-0-2023-54066)

Vulnerability from cvelistv5 – Published: 2025-12-24 12:23 – Updated: 2025-12-24 12:23

Title

media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer

Summary

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer In gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach gl861_i2c_master_xfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/578b67614ae0e4fba…
	https://git.kernel.org/stable/c/2a33fc57133d6f39d…
	https://git.kernel.org/stable/c/dfcd3c010209927b9…
	https://git.kernel.org/stable/c/72af676551efe820e…
	https://git.kernel.org/stable/c/b97719a66970601cd…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 578b67614ae0e4fba3945b66a4c8f9ae77115bcb (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2a33fc57133d6f39d62285df6706aeb1714967f1 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < dfcd3c010209927b9f45b860f046635dc32e32e1 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 72af676551efe820e309a6c7681c2c4372f37376 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b97719a66970601cd3151a3e2020f4454a1c4ff6 (git)

Linux

Unaffected: 5.10.197 , ≤ 5.10.* (semver)
Unaffected: 5.15.133 , ≤ 5.15.* (semver)
Unaffected: 6.1.55 , ≤ 6.1.* (semver)
Unaffected: 6.5.5 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/dvb-usb-v2/gl861.c"
          ],
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          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
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              "versionType": "git"
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              "versionType": "git"
            },
            {
              "lessThan": "b97719a66970601cd3151a3e2020f4454a1c4ff6",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.133",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.197",
                  "vulnerable": true
                },
                {
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                {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer\n\nIn gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf\nis null and msg[i].len is zero, former checks on msg[i].buf would be\npassed. Malicious data finally reach gl861_i2c_master_xfer. If accessing\nmsg[i].buf[0] without sanity check, null ptr deref would happen.\nWe add check on msg[i].len to prevent crash.\n\nSimilar commit:\ncommit 0ed554fd769a\n(\"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\")"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-24T12:23:11.431Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/578b67614ae0e4fba3945b66a4c8f9ae77115bcb"
        },
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          "url": "https://git.kernel.org/stable/c/2a33fc57133d6f39d62285df6706aeb1714967f1"
        },
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          "url": "https://git.kernel.org/stable/c/dfcd3c010209927b9f45b860f046635dc32e32e1"
        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/b97719a66970601cd3151a3e2020f4454a1c4ff6"
        }
      ],
      "title": "media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54066",
    "datePublished": "2025-12-24T12:23:11.431Z",
    "dateReserved": "2025-12-24T12:21:05.092Z",
    "dateUpdated": "2025-12-24T12:23:11.431Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-9QQ8-WXC9-P23M

CVE-2023-54066 (GCVE-0-2023-54066)

Tags

Sightings

Nomenclature