{
  "threat_severity" : "Moderate",
  "public_date" : "2025-06-18T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: nfc: pn533: Fix use-after-free bugs caused by pn532_cmd_timeout",
    "id" : "2373478",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2373478"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.0",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-826",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nnfc: pn533: Fix use-after-free bugs caused by pn532_cmd_timeout\nWhen the pn532 uart device is detaching, the pn532_uart_remove()\nis called. But there are no functions in pn532_uart_remove() that\ncould delete the cmd_timeout timer, which will cause use-after-free\nbugs. The process is shown below:\n(thread 1)                  |        (thread 2)\n|  pn532_uart_send_frame\npn532_uart_remove               |    mod_timer(&pn532->cmd_timeout,...)\n...                           |    (wait a time)\nkfree(pn532) //FREE           |    pn532_cmd_timeout\n|      pn532_uart_send_frame\n|        pn532->... //USE\nThis patch adds del_timer_sync() in pn532_uart_remove() in order to\nprevent the use-after-free bugs. What's more, the pn53x_unregister_nfc()\nis well synchronized, it sets nfc_dev->shutting_down to true and there\nare no syscalls could restart the cmd_timeout timer." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "advisory" : "RHSA-2023:6583",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-362.8.1.el9_3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "advisory" : "RHSA-2023:6583",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-362.8.1.el9_3"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-50005\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50005\nhttps://lore.kernel.org/linux-cve-announce/2025061829-CVE-2022-50005-fd4b@gregkh/T" ],
  "name" : "CVE-2022-50005",
  "csaw" : false
}