{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0933bd04047c3b96ba49545a8f91e7e6f8f666ff"
            },
            {
              "fixed": "35c706d6eb1963735814c5f5bb2674a96eacf3cc"
            },
            {
              "fixed": "2879b65bfa548e10d59c5fba91d17f8a00cd7029"
            },
            {
              "fixed": "0d2c49915bc3aea4521cda5e4d42f24f63b94585"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.18.0"
            },
            {
              "fixed": "6.18.56"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98795.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sparx5: skip ptp deinit if init was skipped\n\nsparx5_ptp_init() returns early on the base lan969x variants\nbecause they do not have the SPX5_FEATURE_PTP flag. It also returns early\nwhen no \"ptp\" interrupt is described. Unbinding the driver then causes a\nNULL pointer dereference when cleaning up uninitialized tx_skbs queues:\n\n    Unable to handle kernel NULL pointer dereference at virtual address\n    0000000000000008\n    Call trace:\n    skb_queue_purge_reason+0x68/0x120 (P)\n    sparx5_ptp_deinit+0x64/0xc0\n    mchp_sparx5_remove+0x38/0x70\n    platform_remove+0x20/0x30\n    device_remove+0x4c/0x80\n\nBefore per-port tx_skbs were added, a NULL dereference would have happened\nwhen calling ptp_clock_unregister() on the never-registered PTP clocks.\n\nFix by returning early in sparx5_ptp_deinit() if PTP is not used.",
  "id": "CVE-2026-98795",
  "modified": "2026-10-20T02:30:15.564492076Z",
  "published": "2026-10-18T15:48:39.633Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d2c49915bc3aea4521cda5e4d42f24f63b94585"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2879b65bfa548e10d59c5fba91d17f8a00cd7029"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/35c706d6eb1963735814c5f5bb2674a96eacf3cc"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98795.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98795"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "net: sparx5: skip ptp deinit if init was skipped"
}