{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.187-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.101-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.6-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux-6.12"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.101-1~deb12u1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  media: pwc: Drain fill_buf on start_streaming() failure  pwc_isoc_init() submits its isochronous URBs with usb_submit_urb(.., GFP_KERNEL) in a loop. After the first URB is submitted, its completion handler pwc_isoc_handler() can run on another CPU before the loop finishes:    start_streaming()     pwc_isoc_init()       usb_submit_urb(urbs[0], GFP_KERNEL)                                   pwc_isoc_handler(urbs[0])                                     pdev-\u003efill_buf =                                       pwc_get_next_fill_buf(pdev)       usb_submit_urb(urbs[i\u003e0], ..)  -\u003e fails       pwc_isoc_cleanup(pdev)           /* kills URBs */       return ret;     pwc_cleanup_queued_bufs(pdev, VB2_BUF_STATE_QUEUED)  pwc_get_next_fill_buf() detaches a buffer from pdev-\u003equeued_bufs and stores it in pdev-\u003efill_buf. The error path in start_streaming() only drains pdev-\u003equeued_bufs, so the buffer parked in pdev-\u003efill_buf is leaked. vb2_start_streaming() then triggers WARN_ON(owned_by_drv_count).  stop_streaming() already handles this since commit 80b0963e1698 (\"[media] pwc: fix WARN_ON\"), which added the fill_buf drain in the teardown path but not in the start_streaming() error path. Mirror that handling on failure so start_streaming() returns with no buffer owned by the driver.  Issue identified by automated review of the INV-003 series at https://sashiko.dev/",
  "id": "DEBIAN-CVE-2026-68217",
  "modified": "2026-09-14T16:47:40.954742076Z",
  "published": "2026-08-10T13:20:09.657Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-68217"
    }
  ],
  "upstream": [
    "CVE-2026-68217"
  ]
}