CVE-2026-63927
usb: dwc2: Fix use after free in debug code
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.
INFO
Published Date :
July 19, 2026, 4:17 p.m.
Last Modified :
July 27, 2026, 5:44 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Apply the patch to the Linux kernel.
- Update the Linux kernel to a fixed version.
- Review kernel debugging code for similar issues.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-63927.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-63927 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-63927
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-63927 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-63927 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 20, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 19, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '7359d482eb4d3967cc8be354405ae6be6eaf732c', 'lessThan': 'd5fc183ed614aeba6779cc992325be560f9a4451', 'versionType': 'git'}, {'status': 'affected', 'version': '7359d482eb4d3967cc8be354405ae6be6eaf732c', 'lessThan': '63b0dafa676aad4d0c3f01a61ad8e2990907660c', 'versionType': 'git'}, {'status': 'affected', 'version': '7359d482eb4d3967cc8be354405ae6be6eaf732c', 'lessThan': '9fe1d84f7e2cf33634e8afb7f4b7f8de182dd913', 'versionType': 'git'}, {'status': 'affected', 'version': '7359d482eb4d3967cc8be354405ae6be6eaf732c', 'lessThan': '0584af4fe40fa5e254a05d69ce658746de641708', 'versionType': 'git'}, {'status': 'affected', 'version': '7359d482eb4d3967cc8be354405ae6be6eaf732c', 'lessThan': 'a15eeeceb94cbc04edef395e4d777ff554bdc27d', 'versionType': 'git'}, {'status': 'affected', 'version': '7359d482eb4d3967cc8be354405ae6be6eaf732c', 'lessThan': '84ea928ed584756e59c6ac09736f12d1db95ded0', 'versionType': 'git'}, {'status': 'affected', 'version': '7359d482eb4d3967cc8be354405ae6be6eaf732c', 'lessThan': '6d0b79d1d1118145e48a68192b6d733e39387053', 'versionType': 'git'}, {'status': 'affected', 'version': '7359d482eb4d3967cc8be354405ae6be6eaf732c', 'lessThan': '9ea06a3fbf9f16e0d98c52cb3b99642be15ec281', 'versionType': 'git'}], 'programFiles': ['drivers/usb/dwc2/hcd.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.259', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.210', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.176', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.143', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.93', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.35', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.12', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/usb/dwc2/hcd.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/0584af4fe40fa5e254a05d69ce658746de641708 Added Reference https://git.kernel.org/stable/c/63b0dafa676aad4d0c3f01a61ad8e2990907660c Added Reference https://git.kernel.org/stable/c/6d0b79d1d1118145e48a68192b6d733e39387053 Added Reference https://git.kernel.org/stable/c/84ea928ed584756e59c6ac09736f12d1db95ded0 Added Reference https://git.kernel.org/stable/c/9ea06a3fbf9f16e0d98c52cb3b99642be15ec281 Added Reference https://git.kernel.org/stable/c/9fe1d84f7e2cf33634e8afb7f4b7f8de182dd913 Added Reference https://git.kernel.org/stable/c/a15eeeceb94cbc04edef395e4d777ff554bdc27d Added Reference https://git.kernel.org/stable/c/d5fc183ed614aeba6779cc992325be560f9a4451