CVE-2025-68321
In the Linux kernel, the following vulnerability has been resolved: page_pool: always add GFP_NOWARN for ATOMIC allocations Driver authors often forget to add GFP_NOWARN for page allocation from the datapath. This is annoying to users as OOMs are a fact of life, and we pretty much expect network Rx to hit page allocation failures during OOM. Make page pool add GFP_NOWARN for ATOMIC allocations by default.
Affected versions
Linux kernel versions
4.18
and later are affected. Fixed in
5.15.197,
6.1.159,
6.6.117,
6.12.58,
6.17.8,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-68321 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/0ec2cd5c58793d0c622797cd5fbe26634b357210
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PatchKernel patch commithttps://git.kernel.org/stable/c/3671a0775952026228ae44e096eb144bca75f8dc
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PatchKernel patch commithttps://git.kernel.org/stable/c/7613c06ffa89c1e2266fb532e23ef7dfdf269d73
Frequently asked questions
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What is CVE-2025-68321?
CVE-2025-68321 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.18 onward and has been patched in 5.15.197, 6.1.159, 6.6.117 and others. CVE-2025-68321 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-2025-68321?
Yes — CVE-2025-68321 has been patched. Fixed versions include 5.15.197, 6.1.159, 6.6.117 and others. If you are running Linux kernel 4.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-68321 actively exploited?
No — CVE-2025-68321 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.