{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "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"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  xfrm: fix stale skb-\u003eprev after async crypto steals a GSO segment  skb_gso_segment() leaves the segment list head with -\u003eprev pointing at the last segment, an invariant validate_xmit_skb_list() relies on when it sets its tail pointer (tail = skb-\u003eprev).  When validate_xmit_xfrm() walks a GSO list and some segments are stolen by async crypto (-\u003exmit() returns -EINPROGRESS), those segments are unlinked from the list but the head -\u003eprev is never updated.  If the last segment is the one stolen, the returned head still has -\u003eprev pointing at it, even though it is now owned by the crypto engine and may be freed.  validate_xmit_skb_list() later does tail-\u003enext = skb, writing through that stale pointer -- a use-after-free.  Repoint skb-\u003eprev at the last retained segment before returning.",
  "id": "DEBIAN-CVE-2026-68426",
  "modified": "2026-09-14T16:47:26.847016280Z",
  "published": "2026-08-10T13:20:36.540Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-68426"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-68426"
  ]
}