CVE-2025-37755 (GCVE-0-2025-37755)
Vulnerability from cvelistv5
Published
2025-05-01 12:55
Modified
2026-08-05 11:57
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: libwx: handle page_pool_dev_alloc_pages error page_pool_dev_alloc_pages could return NULL. There was a WARN_ON(!page) but it would still proceed to use the NULL pointer and then crash. This is similar to commit 001ba0902046 ("net: fec: handle page_pool_dev_alloc_pages error"). This is found by our static analysis tool KNighter.
References
Impacted products
Vendor Product Version
Linux Linux Version: 3c47e8ae113a68da47987750d9896e325d0aeedd
Version: 3c47e8ae113a68da47987750d9896e325d0aeedd
Version: 3c47e8ae113a68da47987750d9896e325d0aeedd
Version: 3c47e8ae113a68da47987750d9896e325d0aeedd
Version: 3c47e8ae113a68da47987750d9896e325d0aeedd
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/wangxun/libwx/wx_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "c17ef974bfcf1a50818168b47c4606b425a957c4",
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "3c47e8ae113a68da47987750d9896e325d0aeedd",
              "versionType": "git"
            },
            {
              "lessThan": "1dd13c60348f515acd8c6f25a561b9c4e3b04fea",
              "status": "affected",
              "version": "3c47e8ae113a68da47987750d9896e325d0aeedd",
              "versionType": "git"
            },
            {
              "lessThan": "90bec7cef8805f9a23145e070dff28a02bb584eb",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "7f1ff1b38a7c8b872382b796023419d87d78c47e",
              "status": "affected",
              "version": "3c47e8ae113a68da47987750d9896e325d0aeedd",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/wangxun/libwx/wx_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.88",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.24",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.12",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.3",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: libwx: handle page_pool_dev_alloc_pages error\n\npage_pool_dev_alloc_pages could return NULL. There was a WARN_ON(!page)\nbut it would still proceed to use the NULL pointer and then crash.\n\nThis is similar to commit 001ba0902046\n(\"net: fec: handle page_pool_dev_alloc_pages error\").\n\nThis is found by our static analysis tool KNighter."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable RX-buffer refill runs in the NIC\u0027s NAPI poll path (`wx_poll` \u2192 `wx_clean_rx_irq` \u2192 `wx_alloc_rx_buffers`), driven entirely by packets received from the wire on internet-facing ngbe/txgbe interfaces. A remote attacker reaches the code by sending traffic, with no local access required.\nAC:L - The trigger is a page-pool allocation failure, which a remote attacker can reliably induce by flooding the interface to force continuous ring refill and drive memory demand; the analogous fec bug was reproduced this way via ordinary network activity under memory pressure. No unpredictable memory layout or victim-state precondition is involved.\nPR:N - The receive path processes packets before any authentication or authorization; the attacker needs no account, credentials, or capabilities on the target. Any host able to send frames to the NIC can drive the path.\nUI:N - Buffer refill happens automatically in softirq context whenever packets are received. No administrator or user action is needed on the victim system.\nS:U - The NULL dereference occurs in kernel context and its impact is confined to the same kernel security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:N - The fault is a read from a fixed NULL-page offset that immediately oopses; no attacker-controlled memory is read and no kernel data is returned to the attacker. There is no information-disclosure primitive.\nI:N - The bug is a NULL pointer dereference, not an out-of-bounds or use-after-free write; execution aborts at the faulting read before any bogus descriptor address can be programmed. No memory modification or control-flow hijack primitive is available.\nA:H - The dereference oopses in softirq/NAPI context, panicking the machine under panic_on_oops and otherwise killing the RX path and leaving the network stack unusable. This is a complete availability loss triggerable remotely without credentials."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:57:18.092Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c17ef974bfcf1a50818168b47c4606b425a957c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/ad81d666e114ebf989fc9994d4c93d451dc60056"
        },
        {
          "url": "https://git.kernel.org/stable/c/1dd13c60348f515acd8c6f25a561b9c4e3b04fea"
        },
        {
          "url": "https://git.kernel.org/stable/c/90bec7cef8805f9a23145e070dff28a02bb584eb"
        },
        {
          "url": "https://git.kernel.org/stable/c/7f1ff1b38a7c8b872382b796023419d87d78c47e"
        }
      ],
      "title": "net: libwx: handle page_pool_dev_alloc_pages error",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37755",
    "datePublished": "2025-05-01T12:55:59.499Z",
    "dateReserved": "2025-04-16T04:51:23.938Z",
    "dateUpdated": "2026-08-05T11:57:18.092Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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