{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7ab0fc61ce73040f89b12d76a8279995ec283541"
            },
            {
              "fixed": "2ffaade3611bd9501bc0b9d5d19fc75bfee7a16b"
            },
            {
              "fixed": "91c15cdda6033e2439f5975b938754152f3d6e38"
            },
            {
              "fixed": "0fe23b8eaba0d3372c66b7b31204408da0715edc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "ac7ab38c271ba2edaeb0dc35b200ec13339776ae"
            },
            {
              "last_affected": "e53a8dcd36b9ebc9229450eb594ae20e0b2ae0fd"
            },
            {
              "last_affected": "740dab2338f70d93aa8235db5a9541d846d7b21c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.6.94"
            },
            {
              "fixed": "6.7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.12.34"
            },
            {
              "fixed": "6.13"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.15.3"
            },
            {
              "fixed": "6.16"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.16.0"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97919.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Take the reference before publishing the named histogram trigger\n\nevent_hist_trigger_named_init() puts the trigger on the global\nnamed_triggers list and only then takes the reference on the trigger it\nshares its histogram with:\n\n\tdata-\u003eref++;\n\n\tsave_named_trigger(data-\u003enamed_data-\u003ename, data);\n\n\tret = event_hist_trigger_init(data-\u003enamed_data);\n\tif (ret \u003c 0) {\n\t\tkfree(data-\u003ecmd_ops);\n\t\tdata-\u003ecmd_ops = \u0026trigger_hist_cmd;\n\t}\n\n\treturn ret;\n\nevent_hist_trigger_init() fails when alloc_hist_pad() cannot allocate, and\nnothing takes the trigger back off the list on the way out.\nevent_hist_trigger_parse() frees it, and the next lookup by name reads the\nfreed object:\n\n BUG: KASAN: slab-use-after-free in find_named_trigger+0xac/0xc0\n Read of size 8 at addr ffff888009346860 by task init/1\n  find_named_trigger+0xac/0xc0\n  hist_register_trigger+0xc1/0xa00\n  event_hist_trigger_parse+0x3146/0x6af0\n  event_trigger_write+0xce/0x160\n Freed by task 67:\n  kfree+0x154/0x420\n  trigger_kthread_fn+0xfd/0x160\n\nDo the reference first and publish once it has succeeded, so that nothing\nwhich can fail runs after the trigger becomes findable.",
  "id": "CVE-2026-97919",
  "modified": "2026-09-26T03:30:35.389631878Z",
  "published": "2026-09-25T10:22:39.829Z",
  "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/0fe23b8eaba0d3372c66b7b31204408da0715edc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ffaade3611bd9501bc0b9d5d19fc75bfee7a16b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91c15cdda6033e2439f5975b938754152f3d6e38"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97919.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97919"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "tracing: Take the reference before publishing the named histogram trigger"
}