fkie_nvd - fkie_cve-2025-39856

fkie_cve-2025-39856

Vulnerability from fkie_nvd

Published

2025-09-19 16:15

Modified

2025-09-22 21:23

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw-nuss: Fix null pointer dereference for ndev In the TX completion packet stage of TI SoCs with CPSW2G instance, which has single external ethernet port, ndev is accessed without being initialized if no TX packets have been processed. It results into null pointer dereference, causing kernel to crash. Fix this by having a check on the number of TX packets which have been processed.

References

▼	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/485302905bada953aadfe063320d73c892a66cbb
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a6099f263e1f408bcc7913c9df24b0677164fc5d

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: ti: am65-cpsw-nuss: Fix null pointer dereference for ndev\n\nIn the TX completion packet stage of TI SoCs with CPSW2G instance, which\nhas single external ethernet port, ndev is accessed without being\ninitialized if no TX packets have been processed. It results into null\npointer dereference, causing kernel to crash. Fix this by having a check\non the number of TX packets which have been processed."
    }
  ],
  "id": "CVE-2025-39856",
  "lastModified": "2025-09-22T21:23:01.543",
  "metrics": {},
  "published": "2025-09-19T16:15:44.543",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/485302905bada953aadfe063320d73c892a66cbb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a6099f263e1f408bcc7913c9df24b0677164fc5d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2025-39856 (GCVE-0-2025-39856)

Vulnerability from cvelistv5

Published

2025-09-19 15:26

Modified

2025-09-29 06:01

Severity ?

Summary

References

▼	URL	Tags
	https://git.kernel.org/stable/c/485302905bada953aadfe063320d73c892a66cbb
	https://git.kernel.org/stable/c/a6099f263e1f408bcc7913c9df24b0677164fc5d

Impacted products

Vendor

Product

Version

▼

Linux

Version: 9a369ae3d1431a83589dde57323a04692dd7fc12
Version: 9a369ae3d1431a83589dde57323a04692dd7fc12

Linux

Version: 6.15

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ti/am65-cpsw-nuss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "485302905bada953aadfe063320d73c892a66cbb",
              "status": "affected",
              "version": "9a369ae3d1431a83589dde57323a04692dd7fc12",
              "versionType": "git"
            },
            {
              "lessThan": "a6099f263e1f408bcc7913c9df24b0677164fc5d",
              "status": "affected",
              "version": "9a369ae3d1431a83589dde57323a04692dd7fc12",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ti/am65-cpsw-nuss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.6",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: ti: am65-cpsw-nuss: Fix null pointer dereference for ndev\n\nIn the TX completion packet stage of TI SoCs with CPSW2G instance, which\nhas single external ethernet port, ndev is accessed without being\ninitialized if no TX packets have been processed. It results into null\npointer dereference, causing kernel to crash. Fix this by having a check\non the number of TX packets which have been processed."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-29T06:01:09.666Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/485302905bada953aadfe063320d73c892a66cbb"
        },
        {
          "url": "https://git.kernel.org/stable/c/a6099f263e1f408bcc7913c9df24b0677164fc5d"
        }
      ],
      "title": "net: ethernet: ti: am65-cpsw-nuss: Fix null pointer dereference for ndev",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39856",
    "datePublished": "2025-09-19T15:26:27.431Z",
    "dateReserved": "2025-04-16T07:20:57.142Z",
    "dateUpdated": "2025-09-29T06:01:09.666Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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