CVE-2025-68317
In the Linux kernel, the following vulnerability has been resolved: io_uring/zctx: check chained notif contexts Send zc only links ubuf_info for requests coming from the same context. There are some ambiguous syz reports, so let's check the assumption on notification completion.
Affected versions
Linux kernel versions
6.10
and later are affected. Fixed in
6.12.58,
6.17.8,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-68317 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/aaafd17d3f4be2c15539359a5b4bfa00237f687f
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PatchKernel patch commithttps://git.kernel.org/stable/c/ab3ea6eac5f45669b091309f592c4ea324003053
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PatchKernel patch commithttps://git.kernel.org/stable/c/d664a3ce3a604231a0b144c152a3755d03b18b60
Frequently asked questions
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What is CVE-2025-68317?
CVE-2025-68317 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.10 onward and has been patched in 6.12.58, 6.17.8 and 6.18. CVE-2025-68317 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-2025-68317?
Yes — CVE-2025-68317 has been patched. Fixed versions include 6.12.58, 6.17.8 and 6.18. If you are running Linux kernel 6.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-68317 actively exploited?
No — CVE-2025-68317 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.