{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.176-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.85-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.19.14-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  usb: gadget: f_phonet: fix skb frags[] overflow in pn_rx_complete()  A broken/bored/mean USB host can overflow the skb_shared_info-\u003efrags[] array on a Linux gadget exposing a Phonet function by sending an unbounded sequence of full-page OUT transfers.  pn_rx_complete() finalizes the skb only when req-\u003eactual \u003c req-\u003elength, where req-\u003elength is set to PAGE_SIZE by the gadget.  If the host always sends exactly PAGE_SIZE bytes per transfer, fp-\u003erx.skb will never be reset and each completion will add another fragment via skb_add_rx_frag().  Once nr_frags exceeds MAX_SKB_FRAGS (default 17), subsequent frag stores overwrite memory adjacent to the shinfo on the heap.  Drop the skb and account a length error when the frag limit is reached, matching the fix applied in t7xx by commit f0813bcd2d9d (\"net: wwan: t7xx: fix potential skb-\u003efrags overflow in RX path\").",
  "id": "DEBIAN-CVE-2026-31616",
  "modified": "2026-09-14T16:47:40.522291249Z",
  "published": "2026-04-24T15:16:40.870Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-31616"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-31616"
  ]
}