mei: bus: access mei_device under device_lock on cleanup
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 2 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 6.1.149 to before 6.1.184; 6.6.103 to before 6.6.148; 6.12.43 to before 6.12.101; 6.15.11 to before 6.16; 6.16.2 to before 6.17 | 6.1.184, 6.6.148, 6.12.101, 6.16, 6.17 | Patch available | CNA |
| Linux | Linux | 6.17 and later | 6.1.184, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2 | Patch available | CNA |
- Linux VendorLinux Affected 6.1.149 to before 6.1.184; 6.6.103 to before 6.6.148; 6.12.43 to before 6.12.101; 6.15.11 to before 6.16; 6.16.2 to before 6.17 Fixed in 6.1.184, 6.6.148, 6.12.101, 6.16, 6.17 Patch available CNA
- Linux VendorLinux Affected 6.17 and later Fixed in 6.1.184, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.184, 6.6.148, 6.12.101, 6.16, 6.17
- Fix · CNA Linux (Linux) Fixed in 6.1.184, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-68181
- 2026-10-03 Alias added: GHSA-xmj6-8mrg-f8fx
- 2026-10-29 Affected versions changed · Red Hat
References
Other 6
- https://git.kernel.org/stable/c/02e3a755086db847d795f2593ebc45e8ee4f1755
- https://git.kernel.org/stable/c/441559d4c595f839b39f0ab6a4ae628427c2fd9e
- https://git.kernel.org/stable/c/c88c030a324c9018b77894a19b2564eb66862020
- https://git.kernel.org/stable/c/59dd34854202d9a3faaa87a85205e553fe7150e1
- https://git.kernel.org/stable/c/7cf79e8d682fe93777268f029668ce5e214237fd
- https://git.kernel.org/stable/c/f112ea910e554d58b4b39a4492b7d302f0f4204f
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Sources
- CVE-2026-68181 · CVE Program
- CVE-2026-68181 · NVD
- FIRST EPSS
- GHSA-xmj6-8mrg-f8fx · GitHub Advisory Database · CC BY 4.0
- CVE-2026-68181 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences