{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "5c0df40aa577e405c458e44e8d458dd78407f4af"
            },
            {
              "fixed": "2dec4642589a663e064e4411d92d6e8fa250d53b"
            },
            {
              "fixed": "398b21608955c9712a012355b69a39407367edc9"
            },
            {
              "fixed": "fd95e68df6fe66344161a1329cbe5e5805e7b704"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.12"
            },
            {
              "fixed": "6.12.112"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.54"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98266.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: core: Fix potential UAF after asynchronous card release\n\nUsually a sound driver releases the resources assigned to the card via\nsnd_card_free(), and it synchronizes with the whole release procedure.\nHowever, when the card is released asynchronously via\nsnd_card_free_when_closed() like USB-audio driver, the situation is\nslightly different; although the snd_card_disconnect() call at the\ndisconnection guarantees that any newer accesses will be gated, the\nin-flight tasks might be still accessing to the underlying card-\u003edev\ndevice even after the disconnection, which would cause a\nuse-after-free in the end, as reported by fuzzers.\n\nFor addressing the bug above, this patch takes the refcount of\ncard-\u003edev at initialization of the card object, and releases at its\ndestructor.   This assures the availability of the card-\u003edev in its\nwhole lifecycle.",
  "id": "CVE-2026-98266",
  "modified": "2026-10-08T02:30:55.111029093Z",
  "published": "2026-10-06T08:45:29.236Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2dec4642589a663e064e4411d92d6e8fa250d53b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/398b21608955c9712a012355b69a39407367edc9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c0df40aa577e405c458e44e8d458dd78407f4af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fd95e68df6fe66344161a1329cbe5e5805e7b704"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98266.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98266"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "ALSA: core: Fix potential UAF after asynchronous card release"
}