CVE-2026-90056 (GCVE-0-2026-90056)
Vulnerability from cvelistv5
Published
2026-09-17 16:05
Modified
2026-10-19 08:57
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: fec: only stop PTP if it was initialized fec_ptp_init() is only called when fep->bufdesc_ex is available. However, fec_probe() unconditionally calls fec_ptp_stop() on the failed_init path, and fec_drv_remove() unconditionally calls fec_ptp_stop() during device removal. Check fep->bufdesc_ex before calling fec_ptp_stop() in both paths to avoid stopping PTP when it was not initialized.
References
Impacted products
Vendor Product Version
Linux Linux Version: 32cba57ba74be58589aeb4cb6496183e46a5e3e5
Version: 32cba57ba74be58589aeb4cb6496183e46a5e3e5
Version: 32cba57ba74be58589aeb4cb6496183e46a5e3e5
Version: 32cba57ba74be58589aeb4cb6496183e46a5e3e5
Version: 32cba57ba74be58589aeb4cb6496183e46a5e3e5
Version: 32cba57ba74be58589aeb4cb6496183e46a5e3e5
Version: 32cba57ba74be58589aeb4cb6496183e46a5e3e5
Version: 32cba57ba74be58589aeb4cb6496183e46a5e3e5
Version: 9561b28349a22c808c3ce25eaed4d132104bafb7
Version: 3.18.99   ≤
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/freescale/fec_main.c"
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          "vendor": "Linux",
          "versions": [
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              "version": "4.2"
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              "version": "0",
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              "version": "6.1.188",
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fec: only stop PTP if it was initialized\n\nfec_ptp_init() is only called when fep-\u003ebufdesc_ex is available.\nHowever, fec_probe() unconditionally calls fec_ptp_stop() on the\nfailed_init path, and fec_drv_remove() unconditionally calls\nfec_ptp_stop() during device removal.\n\nCheck fep-\u003ebufdesc_ex before calling fec_ptp_stop() in both paths\nto avoid stopping PTP when it was not initialized."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:57:13.609Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0dc8b3a395c3a749ab62c078f2fd54a402ae7e2b"
        },
        {
          "url": "https://git.kernel.org/stable/c/1973f108c481fab9bdc7daa6c77442af4a7388ab"
        },
        {
          "url": "https://git.kernel.org/stable/c/0602a4c238d2b6ed6e2bf5fa8ef7fa0203883dac"
        },
        {
          "url": "https://git.kernel.org/stable/c/7566789664813c1778f0d4b7e0539fd863ea450c"
        },
        {
          "url": "https://git.kernel.org/stable/c/383f699a86fd04458dc47d10578c17e94f63d92f"
        },
        {
          "url": "https://git.kernel.org/stable/c/1f9639caeece703012bdb23975ebedf70f426269"
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        {
          "url": "https://git.kernel.org/stable/c/5975009651c4e5ec1492612962d0dd3dc86f6bda"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd890ae29299636fb037276fc1b5238698d08b03"
        }
      ],
      "title": "net: fec: only stop PTP if it was initialized",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90056",
    "datePublished": "2026-09-17T16:05:41.003Z",
    "dateReserved": "2026-09-11T19:38:34.784Z",
    "dateUpdated": "2026-10-19T08:57:13.609Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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