{
  "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": "7.2.6-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  blk-cgroup: fix leaks and online flag on radix_tree_insert failure  When radix_tree_insert() fails in blkg_create(), the error path has two issues:  1. blkg-\u003eonline is set to true unconditionally, even when the blkg was    never fully inserted.  Move the assignment inside the success block.  2. The error path calls blkg_put() without first calling    percpu_ref_kill().  Because the refcount is still in percpu mode,    percpu_ref_put() only does this_cpu_sub() without checking for zero,    so blkg_release() is never triggered.  This permanently leaks the    blkg memory, its percpu iostat, policy data, the parent blkg    reference, and the cgroup css reference — the latter preventing the    cgroup from ever being destroyed.  Fix by replacing blkg_put() with percpu_ref_kill(), matching the pattern used in blkg_destroy().",
  "id": "DEBIAN-CVE-2026-93795",
  "modified": "2026-09-26T08:47:44.000873823Z",
  "published": "2026-09-24T17:17:12.270Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-93795"
    }
  ],
  "upstream": [
    "CVE-2026-93795"
  ]
}