ghsa-xp4x-rp64-962g
Vulnerability from github
Published
2024-05-21 15:31
Modified
2024-12-26 21:30
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

staging: greybus: uart: fix tty use after free

User space can hold a tty open indefinitely and tty drivers must not release the underlying structures until the last user is gone.

Switch to using the tty-port reference counter to manage the life time of the greybus tty state to avoid use after free after a disconnect.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47358"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:22Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: greybus: uart: fix tty use after free\n\nUser space can hold a tty open indefinitely and tty drivers must not\nrelease the underlying structures until the last user is gone.\n\nSwitch to using the tty-port reference counter to manage the life time\nof the greybus tty state to avoid use after free after a disconnect.",
  "id": "GHSA-xp4x-rp64-962g",
  "modified": "2024-12-26T21:30:36Z",
  "published": "2024-05-21T15:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47358"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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