CVE-2025-38391
BaseFortify
Publication date: 2025-07-25
Last updated on: 2025-12-23
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | From 4.19 (inc) to 5.4.296 (exc) |
| linux | linux_kernel | From 5.5 (inc) to 5.10.240 (exc) |
| linux | linux_kernel | From 5.11 (inc) to 5.15.187 (exc) |
| linux | linux_kernel | From 5.16 (inc) to 6.1.144 (exc) |
| linux | linux_kernel | From 6.2 (inc) to 6.6.97 (exc) |
| linux | linux_kernel | From 6.7 (inc) to 6.12.37 (exc) |
| linux | linux_kernel | From 6.13 (inc) to 6.15.6 (exc) |
| linux | linux_kernel | 6.16 |
| linux | linux_kernel | 6.16 |
| linux | linux_kernel | 6.16 |
| linux | linux_kernel | 6.16 |
| debian | debian_linux | 11.0 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-125 | The product reads data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability occurs in the Linux kernel's USB Type-C DisplayPort alternate mode implementation. A poorly implemented DisplayPort Alt Mode port partner can report pin assignment capabilities exceeding the maximum allowed value, which leads to an out-of-bounds array access in the pin_assignment_show function. This causes a BRK exception (a type of crash). The fix involves adding a maximum pin assignment value and ensuring the loop in pin_assignment_show does not access invalid array indices.
How can this vulnerability impact me? :
The vulnerability can cause the Linux kernel to crash or behave unexpectedly when interacting with a malicious or faulty DisplayPort Alt Mode device. This could lead to denial of service or system instability when connecting such devices via USB Type-C.