What’s Vulnerable › Vulnerabilities

CVE-2026-63927: usb: dwc2: Fix use after free in debug code

• Severity: high (CVSS 7.8 v3.1)
• 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: 2026-07-19 · updated 2026-10-27
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: usb: dwc2: Fix use after free in debug code We're not allowed to dereference "urb" after calling usb_hcd_giveback_urb() so save the urb->status ahead of time.

Affected products

• Linux kernel: from 3.10 before 5.10.259; from 5.11 before 5.15.210; from 5.16 before 6.1.176; from 6.2 before 6.6.143; from 6.7 before 6.12.93; from 6.13 before 6.18.35 — fixed in 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.93, 6.18.35
• Linux kernel: 3.10 — fixed in 7.1

How to fix

Upgrade to a fixed version: Linux kernel 5.10.259, 5.15.210, 6.1.176, 6.6.143; Linux kernel 7.1. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0584af4fe40fa5e254a05d69ce658746de641708
• https://git.kernel.org/stable/c/63b0dafa676aad4d0c3f01a61ad8e2990907660c
• https://git.kernel.org/stable/c/6d0b79d1d1118145e48a68192b6d733e39387053
• https://git.kernel.org/stable/c/84ea928ed584756e59c6ac09736f12d1db95ded0
• https://git.kernel.org/stable/c/9ea06a3fbf9f16e0d98c52cb3b99642be15ec281
• https://git.kernel.org/stable/c/9fe1d84f7e2cf33634e8afb7f4b7f8de182dd913
• https://git.kernel.org/stable/c/a15eeeceb94cbc04edef395e4d777ff554bdc27d
• https://git.kernel.org/stable/c/d5fc183ed614aeba6779cc992325be560f9a4451

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