CVE-2025-68226
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix incomplete backport in cfids_invalidation_worker() The previous commit bdb596ceb4b7 ("smb: client: fix potential UAF in smb2_close_cached_fid()") was an incomplete backport and missed one kref_put() call in cfids_invalidation_worker() that should have been converted to close_cached_dir().
Affected versions
Linux kernel versions
6.17.8
and later are affected. Fixed in
6.17.10
and their respective stable series.
References
1 totalFrequently asked questions
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What is CVE-2025-68226?
CVE-2025-68226 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.17.8 onward and has been patched in 6.17.10. CVE-2025-68226 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-2025-68226?
Yes. CVE-2025-68226 has been patched. Fixed versions include 6.17.10. If you are running Linux kernel 6.17.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-68226 actively exploited?
No. CVE-2025-68226 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.