What’s Vulnerable › Vulnerabilities

CVE-2025-40116: usb: host: max3421-hcd: Fix error pointer dereference in probe cleanup

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-12 · updated 2026-10-19

Description

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 products

• Linux kernel: 3.16 — fixed in 6.18

How to fix

Upgrade to a fixed version: Linux kernel 6.18. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/186e8f2bdba551f3ae23396caccd452d985c23e3
• https://git.kernel.org/stable/c/3723c3dda1cc82c9bbca08fcbd46705a361bfd56
• https://git.kernel.org/stable/c/3facf69a735e730ae36387f18780fe420708aa91
• https://git.kernel.org/stable/c/89838fe5c6c010ff8d3924f22afd9c18c5c95310
• https://git.kernel.org/stable/c/b0439e3762ac9ea580f714e1504a1827d1ad32f5
• https://git.kernel.org/stable/c/b682ce44bf20ada752a2f6ce70d5a575c56f6a35
• https://git.kernel.org/stable/c/e0e0ce06f3571be9b26790e4df56ba37b1de8543
• https://git.kernel.org/stable/c/e68ea6de1d0551f90d7a2c75f82cb3ebe5e397dc

Get alerted when CVE-2025-40116 or the next vulnerability affects your stack