CVE-2022-49642 (GCVE-0-2022-49642)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:23 – Updated: 2025-05-04 08:42
VLAI?
Title
net: stmmac: dwc-qos: Disable split header for Tegra194
Summary
In the Linux kernel, the following vulnerability has been resolved: net: stmmac: dwc-qos: Disable split header for Tegra194 There is a long-standing issue with the Synopsys DWC Ethernet driver for Tegra194 where random system crashes have been observed [0]. The problem occurs when the split header feature is enabled in the stmmac driver. In the bad case, a larger than expected buffer length is received and causes the calculation of the total buffer length to overflow. This results in a very large buffer length that causes the kernel to crash. Why this larger buffer length is received is not clear, however, the feedback from the NVIDIA design team is that the split header feature is not supported for Tegra194. Therefore, disable split header support for Tegra194 to prevent these random crashes from occurring. [0] https://lore.kernel.org/linux-tegra/b0b17697-f23e-8fa5-3757-604a86f3a095@nvidia.com/
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee , < 2968830c9b47ce093237483c6207c61065712386 (git)
Affected: 67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee , < 9cc8edc571b871d974b3289868553f9ce544aba6 (git)
Affected: 67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee , < d5c315a787652c35045044877a249f7d5c8a4104 (git)
Affected: 67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee , < cfa4caf3e881ad6dd366c903c34f1c7f21b857ab (git)
Affected: 67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee , < 029c1c2059e9c4b38f97a06204cdecd10cfbeb8a (git)
Create a notification for this product.
    Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.4.207 , ≤ 5.4.* (semver)
Unaffected: 5.10.132 , ≤ 5.10.* (semver)
Unaffected: 5.15.56 , ≤ 5.15.* (semver)
Unaffected: 5.18.13 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2968830c9b47ce093237483c6207c61065712386",
              "status": "affected",
              "version": "67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee",
              "versionType": "git"
            },
            {
              "lessThan": "9cc8edc571b871d974b3289868553f9ce544aba6",
              "status": "affected",
              "version": "67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee",
              "versionType": "git"
            },
            {
              "lessThan": "d5c315a787652c35045044877a249f7d5c8a4104",
              "status": "affected",
              "version": "67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee",
              "versionType": "git"
            },
            {
              "lessThan": "cfa4caf3e881ad6dd366c903c34f1c7f21b857ab",
              "status": "affected",
              "version": "67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee",
              "versionType": "git"
            },
            {
              "lessThan": "029c1c2059e9c4b38f97a06204cdecd10cfbeb8a",
              "status": "affected",
              "version": "67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.4"
            },
            {
              "lessThan": "5.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.207",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.132",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.56",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.207",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.132",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.56",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.13",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: dwc-qos: Disable split header for Tegra194\n\nThere is a long-standing issue with the Synopsys DWC Ethernet driver\nfor Tegra194 where random system crashes have been observed [0]. The\nproblem occurs when the split header feature is enabled in the stmmac\ndriver. In the bad case, a larger than expected buffer length is\nreceived and causes the calculation of the total buffer length to\noverflow. This results in a very large buffer length that causes the\nkernel to crash. Why this larger buffer length is received is not clear,\nhowever, the feedback from the NVIDIA design team is that the split\nheader feature is not supported for Tegra194. Therefore, disable split\nheader support for Tegra194 to prevent these random crashes from\noccurring.\n\n[0] https://lore.kernel.org/linux-tegra/b0b17697-f23e-8fa5-3757-604a86f3a095@nvidia.com/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:42:25.328Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2968830c9b47ce093237483c6207c61065712386"
        },
        {
          "url": "https://git.kernel.org/stable/c/9cc8edc571b871d974b3289868553f9ce544aba6"
        },
        {
          "url": "https://git.kernel.org/stable/c/d5c315a787652c35045044877a249f7d5c8a4104"
        },
        {
          "url": "https://git.kernel.org/stable/c/cfa4caf3e881ad6dd366c903c34f1c7f21b857ab"
        },
        {
          "url": "https://git.kernel.org/stable/c/029c1c2059e9c4b38f97a06204cdecd10cfbeb8a"
        }
      ],
      "title": "net: stmmac: dwc-qos: Disable split header for Tegra194",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49642",
    "datePublished": "2025-02-26T02:23:49.154Z",
    "dateReserved": "2025-02-26T02:21:30.431Z",
    "dateUpdated": "2025-05-04T08:42:25.328Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.