{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "32cba57ba74be58589aeb4cb6496183e46a5e3e5"
            },
            {
              "fixed": "0dc8b3a395c3a749ab62c078f2fd54a402ae7e2b"
            },
            {
              "fixed": "1973f108c481fab9bdc7daa6c77442af4a7388ab"
            },
            {
              "fixed": "0602a4c238d2b6ed6e2bf5fa8ef7fa0203883dac"
            },
            {
              "fixed": "7566789664813c1778f0d4b7e0539fd863ea450c"
            },
            {
              "fixed": "383f699a86fd04458dc47d10578c17e94f63d92f"
            },
            {
              "fixed": "1f9639caeece703012bdb23975ebedf70f426269"
            },
            {
              "fixed": "5975009651c4e5ec1492612962d0dd3dc86f6bda"
            },
            {
              "fixed": "dd890ae29299636fb037276fc1b5238698d08b03"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "9561b28349a22c808c3ce25eaed4d132104bafb7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "3.18.99"
            },
            {
              "fixed": "3.19"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90056.json"
  },
  "details": "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.",
  "id": "CVE-2026-90056",
  "modified": "2026-09-19T03:30:54.018016078Z",
  "published": "2026-09-17T16:05:41.003Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0602a4c238d2b6ed6e2bf5fa8ef7fa0203883dac"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0dc8b3a395c3a749ab62c078f2fd54a402ae7e2b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1973f108c481fab9bdc7daa6c77442af4a7388ab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f9639caeece703012bdb23975ebedf70f426269"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/383f699a86fd04458dc47d10578c17e94f63d92f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5975009651c4e5ec1492612962d0dd3dc86f6bda"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7566789664813c1778f0d4b7e0539fd863ea450c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd890ae29299636fb037276fc1b5238698d08b03"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90056.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90056"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "net: fec: only stop PTP if it was initialized"
}