{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c158834b223fbfab3a14855ac203b8d9cddbbefd"
            },
            {
              "fixed": "f0104a7b730de32eefb3d4a27279592b5504ad59"
            },
            {
              "fixed": "fbf9bb81b21537ede387a31cc586f1d2ce66a74e"
            },
            {
              "fixed": "8f194dee0c0d1223255bae1429e1939882f540fc"
            },
            {
              "fixed": "36630cafbeede0b64c370edb2f7b4094327ee1e0"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.12.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93134.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nprintk: Fix possible console use-after-free\n\nWhen emitting a record via legacy printing, it is possible that a handover\nto another legacy printing context occurs. When a context has performed a\nhandover, the console SRCU read lock is released and the pointer to the\nconsole struct might now be invalid. Therefore, after calling\nnbcon_legacy_emit_next_record() or console_emit_next_record(), it is\nnecessary to check if a handover occurred _before_ further @con usage.\n\nSashiko pointed out that console_flush_one_record() was not doing this.\n\nIn console_flush_one_record(), after emitting a record, move the further\nusage of @con after the handover check.",
  "id": "CVE-2026-93134",
  "modified": "2026-09-18T03:30:26.389902454Z",
  "published": "2026-09-17T16:11:36.077Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36630cafbeede0b64c370edb2f7b4094327ee1e0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f194dee0c0d1223255bae1429e1939882f540fc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f0104a7b730de32eefb3d4a27279592b5504ad59"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fbf9bb81b21537ede387a31cc586f1d2ce66a74e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93134.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93134"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "printk: Fix possible console use-after-free"
}