{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "eb99cc95c3b6513b495c4839ac4917206705f657"
            },
            {
              "fixed": "f2a72f47c5fb4ba6887e85bbe809d7e5b318d9d5"
            },
            {
              "fixed": "88c98ef247a3126fea9bbbda953a18a2f36c3ea7"
            },
            {
              "fixed": "ab4d213393e846baa6437497f94dda7553cbeda7"
            },
            {
              "fixed": "b2ab73b8123ce6cf2bc32634bfee4928676ffa66"
            },
            {
              "fixed": "39afc46c0243d10b7795e6e6cf4ae91f41732120"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.8.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68195.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7615: drop TXRX_NOTIFY on non-mmio buses\n\nPKT_TYPE_TXRX_NOTIFY is an mmio-only event, but mt7615_rx_check() and\nmt7615_queue_rx_skb() dispatch it to mt7615_mac_tx_free() on every bus.\nmt7615_mac_tx_free() cleans the DMA tx queues with\nmt76_queue_tx_cleanup(), which calls queue_ops-\u003etx_cleanup(). Only the\nmmio queue ops implement that callback; on the mt7663 USB and SDIO\nbuses it is NULL, so a TXRX_NOTIFY there calls a NULL pointer in the RX\nworker. Same defect as the mt7921 and mt7925 patches in this series.\n\nDrop the event on non-mmio buses via mt76_is_mmio(), as in\ncommit 5683e1488aa9 (\"wifi: mt76: connac: do not check WED status for\nnon-mmio devices\").",
  "id": "CVE-2026-68195",
  "modified": "2026-08-12T03:51:20.567358321Z",
  "published": "2026-08-10T12:00:13.627Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39afc46c0243d10b7795e6e6cf4ae91f41732120"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88c98ef247a3126fea9bbbda953a18a2f36c3ea7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab4d213393e846baa6437497f94dda7553cbeda7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b2ab73b8123ce6cf2bc32634bfee4928676ffa66"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2a72f47c5fb4ba6887e85bbe809d7e5b318d9d5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68195.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68195"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "wifi: mt76: mt7615: drop TXRX_NOTIFY on non-mmio buses"
}