5.5

CVE-2025-38404

usb: typec: displayport: Fix potential deadlock

In the Linux kernel, the following vulnerability has been resolved:

usb: typec: displayport: Fix potential deadlock

The deadlock can occur due to a recursive lock acquisition of
`cros_typec_altmode_data::mutex`.
The call chain is as follows:
1. cros_typec_altmode_work() acquires the mutex
2. typec_altmode_vdm() -> dp_altmode_vdm() ->
3. typec_altmode_exit() -> cros_typec_altmode_exit()
4. cros_typec_altmode_exit() attempts to acquire the mutex again

To prevent this, defer the `typec_altmode_exit()` call by scheduling
it rather than calling it directly from within the mutex-protected
context.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version6.1.143
LinuxLinux Kernel Version6.6.96
LinuxLinux Kernel Version6.12.36
LinuxLinux Kernel Version6.15.5
LinuxLinux Kernel Version6.16 Updaterc1
LinuxLinux Kernel Version6.16 Updaterc2
LinuxLinux Kernel Version6.16 Updaterc3
LinuxLinux Kernel Version6.16 Updaterc4
DebianDebian Linux Version11.0
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.053
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-667 Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.