{
  "cveId": "CVE-2023-52629",
  "url": "https://patchblox.com/security/cve/CVE-2023-52629",
  "summary": "CVE-2023-52629 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52629, released March 29, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  sh: push-switch: Reorder cleanup operations to a...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  sh: push-switch: Reorder cleanup operations to avoid use-after-free bug  The original code puts flush_work() before timer_shutdown_sync() in switch_drv_remove(). Although we use flush_work() to stop the worker, it could be rescheduled in switch_timer(). As a result, a use-after-free bug can occur. The details are shown below:        (cpu 0)                    |      (cpu 1) switch_drv_remove()              |  flush_work()                    |   ...                            |  switch_timer // timer                                  |   schedule_work(\u0026psw-\u003Ework)  timer_shutdown_sync()           |  ...                             |  switch_work_handler // worker  kfree(psw) // free              |                                  |   psw-\u003Estate = 0 // use  This patch puts timer_shutdown_sync() before flush_work() to mitigate the bugs. As a result, the worker and timer will be stopped safely before the deallocate operations.",
  "published": "2024-03-29T10:15:09Z",
  "severity": "high",
  "cvss": 8.4,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00254,
  "epssPercentile": 0.16988,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.190-1",
      "fix": "DEBIAN-CVE-2023-52629",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52629",
      "released": "2024-03-29T10:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.5.6-1",
      "fix": "DEBIAN-CVE-2023-52629",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52629",
      "released": "2024-03-29T10:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.5.6-1",
      "fix": "DEBIAN-CVE-2023-52629",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52629",
      "released": "2024-03-29T10:15:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}