{
  "id": "CVE-2026-98314",
  "url": "https://spydr.io/cve/CVE-2026-98314",
  "published": "2026-10-06T09:18:23.033Z",
  "modified": "2026-10-06T09:18:23.033Z",
  "score": null,
  "severity": null,
  "cvss_version": null,
  "vector": null,
  "score_source": null,
  "epss": 0.00184,
  "epss_percentile": 0.07297,
  "exploited": false,
  "kev": null,
  "ssvc_exploitation": null,
  "vendors": [
    "Linux"
  ],
  "products": [
    "Linux"
  ],
  "cwes": [],
  "description": "In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: set timer->private_data before registering the PCM timer snd_pcm_timer_init() calls snd_device_register() to link the new struct snd_timer into the global timer list while it still carries hw.c_resolution = snd_pcm_timer_resolution (and hw.start/hw.stop), and only afterwards sets timer->private_data = substream. Once the timer is on the list under register_mutex, a concurrent reader can already reach it through the same mutex and invoke these callbacks. /proc/asound/timers does this via c_resolution(), and snd_timer_open()+snd_timer_start() reach start()/stop() the same way. All three dereference timer->private_data, which for this brief window is NULL, giving a NULL-pointer dereference: substream = timer->private_data; return substream->runtime ? ... // substream is NULL Move the private_data/private_free assignment before snd_device_register() so the timer is never visible on the list without its private_data set. On the snd_device_register() failure path, private_free() (snd_pcm_timer_free()) can now run, but it only does substream->timer = NULL, which is already NULL at that point since substream->timer is set to the new timer just once, after a successful registration -- so the failure path stays safe.",
  "status": "Received",
  "score_type": null,
  "scores": {
    "cvss_v40": null,
    "cvss_v31": null,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0b349249d572633d7c8cdeb917623d1676a2b7c3",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/1e713f9bb2ac583521f06b0eb4e22440b1e3d078",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/27f167e117eca310661fbcbacb352ea08face067",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/555d168bd98daa46daccc68c908201388c834293",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/686c7a6af1eea8d2a919303e4c6bbec3de79dbdc",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/8c869d5cf5affb20994bdbb60e7d46d65c91b55f",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/d63f5a9f8121fb43c798056d7dd34c58f47185d7",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/e1eee8f16628f8b6bcae0a366fd6a2dd65e71edd",
      "tags": []
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98314",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}