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mei: bus: access mei_device under device_lock on cleanup

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: mei: bus: access mei_device under device_lock on cleanup Fix couple of problems in mei_cl_bus_dev_release(): mei_cl_flush_queues() is running without lock. bus->file_list access after mei_dev_bus_put(bus) can become a use-after-free if this was the last reference to bus. Protect queues cleanup and WARN traversal by device lock there to avoid the concurrent access problems. Move WARN traversal before mei_dev_bus_put(bus). This file uses bus variable name for mei_device, adjust code of mei_cl_bus_dev_release() to use bus variable too.

Products
Kernel
Affected versions
Not specified
Fixed versions
6.1.184, 6.12.101, 6.18.42, 6.6.148, 7.1.6
CVEs
CVE-2026-68181
Confirmed fixed CVEs
Not specified
Updated in this feed
28 Oct 2026, 08:57 UTC · Revision 1

Source evidence

mei: bus: access mei_device under device_lock on cleanup

core-osv · Original source

Published 10 Aug 2026, 11:59 UTC

In the Linux kernel, the following vulnerability has been resolved: mei: bus: access mei_device under device_lock on cleanup Fix couple of problems in mei_cl_bus_dev_release(): mei_cl_flush_queues() is running without lock. bus->file_list access after mei_dev_bus_put(bus) can become a use-after-free if this was the last reference to bus. Protect queues cleanup and WARN traversal by device lock there to avoid the concurrent access problems. Move WARN traversal before mei_dev_bus_put(bus). This file uses bus variable name for mei_device, adjust code of mei_cl_bus_dev_release() to use bus variable too.

osv:CVE-2026-68181

Kernel

Fixed versions: 6.1.184, 6.6.148, 6.12.101, 6.18.42, 7.1.6

Complete source record
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  "url": "https://osv.dev/vulnerability/CVE-2026-68181",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mei: bus: access mei_device under device_lock on cleanup",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: mei: bus: access mei_device under device_lock on cleanup Fix couple of problems in mei_cl_bus_dev_release(): mei_cl_flush_queues() is running without lock. bus->file_list access after mei_dev_bus_put(bus) can become a use-after-free if this was the last reference to bus. Protect queues cleanup and WARN traversal by device lock there to avoid the concurrent access problems. Move WARN traversal before mei_dev_bus_put(bus). This file uses bus variable name for mei_device, adjust code of mei_cl_bus_dev_release() to use bus variable too.",
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      "modified": "2026-10-08T02:51:37.109701204Z",
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  "source_id": "core-osv",
  "document_id": 98325,
  "published_at": "2026-08-10T11:59:52.724+00:00"
}