What’s Vulnerable › Vulnerabilities

CVE-2026-46134: platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-28 · updated 2026-06-24
• Weakness: CWE-476

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 products

• Linux kernel: from 6.14 before 6.18.30; from 6.19 before 7.0.7; 7.1-rc1, 7.1-rc2 — fixed in 6.18.30, 7.0.7

How to fix

Upgrade to a fixed version: Linux kernel 6.18.30, 7.0.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/23ae72e8c2f1c1d1da8cbd479320ddcfcc9c7435
• https://git.kernel.org/stable/c/3b13d5883a097f538fccbab1c61c95546d29621f
• https://git.kernel.org/stable/c/525cb7ba6661074c1c5cc3772bccc6afab6791ef

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