CVE-2026-98453
In the Linux kernel, the following vulnerability has been resolved: smb: client: close handle after create-context parsing failure SMB2_open() accounts a successful CREATE response as a remote open before parsing its create contexts. If smb2_parse_contexts() rejects malformed context data, SMB2_open() returns without closing the handle, leaving the server-side handle open and num_remote_opens elevated. Close the handle after a post-CREATE context parsing failure so the error path releases the remote resource and balances the open count.
Affected versions
Linux kernel versions
5.4.277,
5.10.211,
5.15.150,
6.1.79,
6.6.8,
6.7
and later are affected. Fixed in
6.12.113,
6.18.56,
7.2.9,
7.3
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-98453?
CVE-2026-98453 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.4.277 onward and has been patched in 6.12.113, 6.18.56, 7.2.9 and others. CVE-2026-98453 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-2026-98453?
Yes. CVE-2026-98453 has been patched. Fixed versions include 6.12.113, 6.18.56, 7.2.9 and others. If you are running Linux kernel 5.4.277 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-98453 actively exploited?
No. CVE-2026-98453 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.