CVE-2026-64147
In the Linux kernel, the following vulnerability has been resolved: pds_core: fix debugfs_lookup dentry leak and error handling debugfs_lookup() returns a dentry with an elevated reference count that must be released with dput(). The current code discards the returned dentry without calling dput(), causing a reference leak on every firmware reset recovery. Additionally, when CONFIG_DEBUG_FS is disabled, debugfs_lookup() returns ERR_PTR(-ENODEV), not NULL. The current check passes for error pointers and would call dput() on an invalid pointer, causing a crash.
Affected versions
Linux kernel versions
6.6.16,
6.7.4,
6.8
and later are affected. Fixed in
6.6.142,
6.12.92,
6.18.34,
7.0.11,
7.1
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-64147?
CVE-2026-64147 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.6.16 onward and has been patched in 6.6.142, 6.12.92, 6.18.34 and others. CVE-2026-64147 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-2026-64147?
Yes — CVE-2026-64147 has been patched. Fixed versions include 6.6.142, 6.12.92, 6.18.34 and others. If you are running Linux kernel 6.6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-64147 actively exploited?
No — CVE-2026-64147 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.