CVE-2025-40116
In the Linux kernel, the following vulnerability has been resolved: usb: host: max3421-hcd: Fix error pointer dereference in probe cleanup The kthread_run() function returns error pointers so the max3421_hcd->spi_thread pointer can be either error pointers or NULL. Check for both before dereferencing it.
Affected versions
Linux kernel versions
3.16
and later are affected. Fixed in
5.4.301,
5.10.246,
5.15.195,
6.1.156,
6.6.112,
6.12.53,
6.17.3,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-40116 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/186e8f2bdba551f3ae23396caccd452d985c23e3
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PatchKernel patch commithttps://git.kernel.org/stable/c/3723c3dda1cc82c9bbca08fcbd46705a361bfd56
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PatchKernel patch commithttps://git.kernel.org/stable/c/3facf69a735e730ae36387f18780fe420708aa91
Frequently asked questions
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What is CVE-2025-40116?
CVE-2025-40116 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.16 onward and has been patched in 5.4.301, 5.10.246, 5.15.195 and others. CVE-2025-40116 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-2025-40116?
Yes — CVE-2025-40116 has been patched. Fixed versions include 5.4.301, 5.10.246, 5.15.195 and others. If you are running Linux kernel 3.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-40116 actively exploited?
No — CVE-2025-40116 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.