CVE-2026-46134

platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration

MEDIUM
5.5
CVSS Score
Published: May 28, 2026 at 09:35 AM UTC
Updated: June 27, 2026 at 11:41 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.14 ≤ v < 6.18.306.14 ≤ v < 7.0.76.14 ≤ v < 7.16.19 ≤ v < 7.0.73b00be26b16ad72c85624ada08cbae2d2c57b6e97.1 rc17.1 rc2
Vendor states this is fixed in 23ae72e8c2f1c1d1da8cbd479320ddcfcc9c7435 (fixed)
Vendor states this is fixed in 3b13d5883a097f538fccbab1c61c95546d29621f (fixed)
Vendor states this is fixed in 525cb7ba6661074c1c5cc3772bccc6afab6791ef (fixed)
Vendor states this is fixed in 6.14 (unaffected)
Vendor states this is fixed in 6.18.30 (unaffected)
Vendor states this is fixed in 7.0.7 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusUNDERGOING ANALYSIS
CWE
CWE-476

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