CVE-2026-64466

Summary

In the Linux kernel, the following vulnerability has been resolved:

rust_binder: clear freeze listener on node removal

Generally userspace is supposed to explicitly clear freeze listeners before they drop the refcount on the node ref to zero, but there's nothing forcing that. Currently, in this scenario the freeze listener remains in the freeze_listeners rbtree and in the remote node's freeze listener list, even though the ref for which the listener is registered is gone. This could potentially lead to a memory leak due to a refcount cycle. Thus, remove the freeze listener in this scenario.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxeafedbc7c050c44744fbdf80bdf3315e860b7513 < 91b27f8172cdbf265240104772fd042a461a7767affected
LinuxLinuxeafedbc7c050c44744fbdf80bdf3315e860b7513 < 0644da3621ddd8e146280675a2a31d1e06634a1daffected
LinuxLinuxeafedbc7c050c44744fbdf80bdf3315e860b7513 < bc4a9828897871ff3e5a1f8a1d346decbf4ee95eaffected
LinuxLinux6.18affected
LinuxLinux0 < 6.18unaffected
LinuxLinux6.18.39 <= 6.18.*unaffected
LinuxLinux7.1.4 <= 7.1.*unaffected
LinuxLinux7.2-rc3 <= *unaffected

Weaknesses

References