CVE-2026-68181

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux24f4ceeaeee7983c07590149556a0e33efe2ec90 < 441559d4c595f839b39f0ab6a4ae628427c2fd9eaffected
LinuxLinux612c8d21ce6e37b73f3106aec7ffa35959d40261 < c88c030a324c9018b77894a19b2564eb66862020affected
LinuxLinux35e8a426b16adbecae7a4e0e3c00fc8d0273db53 < 59dd34854202d9a3faaa87a85205e553fe7150e1affected
LinuxLinux35e8a426b16adbecae7a4e0e3c00fc8d0273db53 < 7cf79e8d682fe93777268f029668ce5e214237fdaffected
LinuxLinux35e8a426b16adbecae7a4e0e3c00fc8d0273db53 < f112ea910e554d58b4b39a4492b7d302f0f4204faffected
LinuxLinux6f2a6ef86b23a30b92ad57981de537bce67bfa45affected
LinuxLinux2f29dce5a5ae06a7db32e4491d72269329a86eebaffected
LinuxLinux28de6ca5276a94b0589ae1bf026b89fa0eaf14c0affected
LinuxLinux6.6.103 < 6.6.148affected
LinuxLinux6.12.43 < 6.12.101affected
LinuxLinux6.1.149 < 6.2affected
LinuxLinux6.15.11 < 6.16affected
LinuxLinux6.16.2 < 6.17affected
LinuxLinux6.17affected
LinuxLinux0 < 6.17unaffected
LinuxLinux6.6.148 <= 6.6.*unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.42 <= 6.18.*unaffected
LinuxLinux7.1.6 <= 7.1.*unaffected
LinuxLinux7.2-rc5 <= *unaffected

Weaknesses

References