Vulnerability in Linux

CVE-2025-38404

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.

EPSS: 0.001 (3.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Linux — versions e0359c66c1beccbe90119a63391678eabda38007, e3fb6c2c3939b4aad203cacdd613a62ce1fd032c, 56846793f105cf2b39ecbde4f3ae86342091f6fc
  • Linux Linux_kernel — versions 6.1.143, 6.6.96, 6.12.36
  • Debian Debian_linux — versions 11.0

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-38404?
CVE-2025-38404 is a medium-severity vulnerability in Linux, classified under Improper Locking. CVSS score: 5.5/10. Published 2025-07-25.
How severe is CVE-2025-38404?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2025-38404 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.