CVE-2025-38391

MediumCVSS 5.5/10Last modified Nov 5, 2026

Description

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

usb: typec: altmodes/displayport: do not index invalid pin_assignments

A poorly implemented DisplayPort Alt Mode port partner can indicate that its pin assignment capabilities are greater than the maximum value, DP_PIN_ASSIGN_F. In this case, calls to pin_assignment_show will cause a BRK exception due to an out of bounds array access.

Prevent for loop in pin_assignment_show from accessing invalid values in pin_assignments by adding DP_PIN_ASSIGN_MAX value in typec_dp.h and using i < DP_PIN_ASSIGN_MAX as a loop condition.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-125

Affected software

VendorProductVersions
LinuxLinux>= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588, < c93bc959788ed9a1af7df57cb539837bdf790cee; >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588, < 114a977e0f6bf278e05eade055e13fc271f69cf7; >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588, < 621d5a3ef0231ab242f2d31eecec40c38ca609c5; >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588, < 2f535517b5611b7221ed478527e4b58e29536ddf; >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588, < 45e9444b3b97eaf51a5024f1fea92f44f39b50c6; >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588, < 5581e694d3a1c2f32c5a51d745c55b107644e1f8; >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588, < 47cb5d26f61d80c805d7de4106451153779297a1; >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588, < af4db5a35a4ef7a68046883bfd12468007db38f1
LinuxLinux4.19

References

Timeline

Published
Jul 25, 2025
Last modified
Nov 5, 2026
NVD status
Analyzed

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CVE-2025-38391: Medium severity, CVSS 5.5 | Vulnix