CVE-2025-40053 (GCVE-0-2025-40053)

Vulnerability from cvelistv5 – Published: 2025-10-28 11:48 – Updated: 2025-12-01 06:17
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: dlink: handle copy_thresh allocation failure The driver did not handle failure of `netdev_alloc_skb_ip_align()`. If the allocation failed, dereferencing `skb->protocol` could lead to a NULL pointer dereference. This patch tries to allocate `skb`. If the allocation fails, it falls back to the normal path. Tested-on: D-Link DGE-550T Rev-A3
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 84fd710a704f3d53d4120e452e86cea558cf73a8 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5aa9b885602811a026a3f45c92ea2b4b04c54f09 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9d49e4b14609e1a20d931e718962c4b6b5485174 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ea87151df398d407a632c7bf63013290f01c5009 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7ed5010fef0930f4322d620052edc854ef3ec41f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fd7b6b2c920d7fd370a612be416a904d6e1ebe55 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8169a6011c5fecc6cb1c3654c541c567d3318de8 (git)
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    Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.10.246 , ≤ 5.10.* (semver)
Unaffected: 5.15.195 , ≤ 5.15.* (semver)
Unaffected: 6.1.156 , ≤ 6.1.* (semver)
Unaffected: 6.6.112 , ≤ 6.6.* (semver)
Unaffected: 6.12.53 , ≤ 6.12.* (semver)
Unaffected: 6.17.3 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
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            "drivers/net/ethernet/dlink/dl2k.c"
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      "providerMetadata": {
        "dateUpdated": "2025-12-01T06:17:00.436Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "net: dlink: handle copy_thresh allocation failure",
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    "datePublished": "2025-10-28T11:48:28.444Z",
    "dateReserved": "2025-04-16T07:20:57.157Z",
    "dateUpdated": "2025-12-01T06:17:00.436Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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  "vulnerability-lookup:meta": {
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  }
}


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  • 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.
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  • 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.



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