CVE-2026-93163
Received
Received - Intake
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Vulnerability report for CVE-2026-93163, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-17
Last updated on: 2026-09-17
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
hwrng: core - fix rng list on registration error
hwrng_register(rng) does the following:
1. Checks if rng has name and read methods set
2. Checks if the name already exists
3. Adds rng to global rng_list
4. May try to set rng to current_rng
If step 4 fails, it returns an error. However, it does not remove the
rng from rng_list, causing a dangling reference which can result in
use-after-free if the caller frees rng, since registration failed.
Add a list_del_init() cleanup step.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | 2bbb6983887fefc8026beab01198d30f47b7bd22 |
| Linux | Linux | 2bbb6983887fefc8026beab01198d30f47b7bd22 |
| Linux | Linux | 2bbb6983887fefc8026beab01198d30f47b7bd22 |
| Linux | Linux | 2bbb6983887fefc8026beab01198d30f47b7bd22 |
| Linux | Linux | 42802952a2725f85f7e36ee3b29593af5fe87197 |
| Linux | Linux | 4.9.320 |
| Linux | Linux | 4.14 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
