{
  "cveId": "CVE-2025-39711",
  "url": "https://patchblox.com/security/cve/CVE-2025-39711",
  "summary": "CVE-2025-39711 is fixed in 18 products on 1 platform, first by DEBIAN-CVE-2025-39711, released September 5, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "media: ivsc: Fix crash at shutdown due to missing mei_cldev_disable() calls",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  media: ivsc: Fix crash at shutdown due to missing mei_cldev_disable() calls  Both the ACE and CSI driver are missing a mei_cldev_disable() call in their remove() function.  This causes the mei_cl client to stay part of the mei_device-\u003Efile_list list even though its memory is freed by mei_cl_bus_dev_release() calling kfree(cldev-\u003Ecl).  This leads to a use-after-free when mei_vsc_remove() runs mei_stop() which first removes all mei bus devices calling mei_ace_remove() and mei_csi_remove() followed by mei_cl_bus_dev_release() and then calls mei_cl_all_disconnect() which walks over mei_device-\u003Efile_list dereferecing the just freed cldev-\u003Ecl.  And mei_vsc_remove() it self is run at shutdown because of the platform_device_unregister(tp-\u003Epdev) in vsc_tp_shutdown()  When building a kernel with KASAN this leads to the following KASAN report:  [ 106.634504] ================================================================== [ 106.634623] BUG: KASAN: slab-use-after-free in mei_cl_set_disconnected (drivers/misc/mei/client.c:783) mei [ 106.634683] Read of size 4 at addr ffff88819cb62018 by task systemd-shutdow/1 [ 106.634729] [ 106.634767] Tainted: [E]=UNSIGNED_MODULE [ 106.634770] Hardware name: Dell Inc. XPS 16 9640/09CK4V, BIOS 1.12.0 02/10/2025 [ 106.634773] Call Trace: [ 106.634777]  \u003CTASK\u003E ... [ 106.634871] kasan_report (mm/kasan/report.c:221 mm/kasan/report.c:636) [ 106.634901] mei_cl_set_disconnected (drivers/misc/mei/client.c:783) mei [ 106.634921] mei_cl_all_disconnect (drivers/misc/mei/client.c:2165 (discriminator 4)) mei [ 106.634941] mei_reset (drivers/misc/mei/init.c:163) mei ... [ 106.635042] mei_stop (drivers/misc/mei/init.c:348) mei [ 106.635062] mei_vsc_remove (drivers/misc/mei/mei_dev.h:784 drivers/misc/mei/platform-vsc.c:393) mei_vsc [ 106.635066] platform_remove (drivers/base/platform.c:1424)  Add the missing mei_cldev_disable() calls so that the mei_cl gets removed from mei_device-\u003Efile_list before it is freed to fix this.",
  "published": "2025-09-05T18:15:48Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00158,
  "epssPercentile": 0.04965,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-39711",
  "fixes": [
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      "platform": "linux",
      "product": "dtb-aarch64",
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      "fix": "OPENSUSE-SU-2025:20081-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2025-20081-1",
      "released": "2025-11-25T07:35:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.6.1",
      "fix": "OPENSUSE-SU-2025:20081-1",
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      "released": "2025-11-25T07:35:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.19.1",
      "fix": "SUSE-SU-2025:03601-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-03601-1",
      "released": "2025-10-15T12:57:01Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 16.0",
      "fixedVersion": "6.12.0-160000.6.1",
      "fix": "SUSE-SU-2025:21139-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-21139-1",
      "released": "2025-11-25T07:34:57Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
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      "fixedVersion": "6.4.0-150700.20.15.2",
      "fix": "SUSE-SU-2025:03633-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-03633-1",
      "released": "2025-10-17T14:32:41Z"
    },
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    {
      "platform": "linux",
      "product": "kernel-kvmsmall",
      "release": "opensuse-leap 16.0",
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  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}