CVE-2026-64466
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 versions
Linux kernel versions
6.18
and later are affected. Fixed in
6.18.39,
7.1.4,
7.2-rc3
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-64466?
CVE-2026-64466 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.18 onward and has been patched in 6.18.39, 7.1.4 and 7.2-rc3. CVE-2026-64466 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-64466?
Yes. CVE-2026-64466 has been patched. Fixed versions include 6.18.39, 7.1.4 and 7.2-rc3. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-64466 actively exploited?
No. CVE-2026-64466 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.