CVE-2026-46134
platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration
Description
In the Linux kernel, the following vulnerability has been resolved: platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration cros_typec_register_thunderbolt() missed initializing the `adata->lock` mutex. This leads to a NULL dereference when the mutex is later acquired (e.g. in cros_typec_altmode_work()). Initialize the mutex in cros_typec_register_thunderbolt() to fix the issue.
INFO
Published Date :
May 28, 2026, 10:16 a.m.
Last Modified :
June 24, 2026, 5:49 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 | MEDIUM | [email protected] |
Solution
- Initialize the mutex in cros_typec_register_thunderbolt().
- Acquire the mutex safely in cros_typec_altmode_work().
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-2026-46134.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-46134 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-2026-46134
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-2026-46134 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-46134 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.
-
Initial Analysis by [email protected]
Jun. 24, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.7 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.14 up to (excluding) 6.18.30 Added Reference Type kernel.org: https://git.kernel.org/stable/c/23ae72e8c2f1c1d1da8cbd479320ddcfcc9c7435 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3b13d5883a097f538fccbab1c61c95546d29621f Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/525cb7ba6661074c1c5cc3772bccc6afab6791ef Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 17, 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': '3b00be26b16ad72c85624ada08cbae2d2c57b6e9', 'lessThan': '23ae72e8c2f1c1d1da8cbd479320ddcfcc9c7435', 'versionType': 'git'}, {'status': 'affected', 'version': '3b00be26b16ad72c85624ada08cbae2d2c57b6e9', 'lessThan': '3b13d5883a097f538fccbab1c61c95546d29621f', 'versionType': 'git'}, {'status': 'affected', 'version': '3b00be26b16ad72c85624ada08cbae2d2c57b6e9', 'lessThan': '525cb7ba6661074c1c5cc3772bccc6afab6791ef', 'versionType': 'git'}], 'programFiles': ['drivers/platform/chrome/cros_typec_altmode.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.30', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.7', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/platform/chrome/cros_typec_altmode.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration cros_typec_register_thunderbolt() missed initializing the `adata->lock` mutex. This leads to a NULL dereference when the mutex is later acquired (e.g. in cros_typec_altmode_work()). Initialize the mutex in cros_typec_register_thunderbolt() to fix the issue. Added Reference https://git.kernel.org/stable/c/23ae72e8c2f1c1d1da8cbd479320ddcfcc9c7435 Added Reference https://git.kernel.org/stable/c/3b13d5883a097f538fccbab1c61c95546d29621f Added Reference https://git.kernel.org/stable/c/525cb7ba6661074c1c5cc3772bccc6afab6791ef