CVE-2025-39856 (GCVE-0-2025-39856)
Vulnerability from cvelistv5
Published
2025-09-19 15:26
Modified
2025-09-29 06:01
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/485302905bada953aadfe063320d73c892a66cbb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a6099f263e1f408bcc7913c9df24b0677164fc5d
Impacted products
Vendor Product Version
Linux Linux Version: 9a369ae3d1431a83589dde57323a04692dd7fc12
Version: 9a369ae3d1431a83589dde57323a04692dd7fc12
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   Linux Linux Version: 6.15
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ti/am65-cpsw-nuss.c"
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          "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"
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        {
          "url": "https://git.kernel.org/stable/c/a6099f263e1f408bcc7913c9df24b0677164fc5d"
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      ],
      "title": "net: ethernet: ti: am65-cpsw-nuss: Fix null pointer dereference for ndev",
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    "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"
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  }
}


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