Strix
63.5K

CVE-2026-93163

Unknown

Last modified

CVE-2026-93163 is a vulnerability of currently unknown severity. 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.

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 2bbb6983887fefc8026beab01198d30f47b7bd22, < de4f1bcb61a73cc896decdbd27d61a34add93b53; >= 2bbb6983887fefc8026beab01198d30f47b7bd22, < cf293c9c7424de0d04b51367d07f40570ce80231; >= 2bbb6983887fefc8026beab01198d30f47b7bd22, < bee8d1fcdc8f389b595b0a4cf6fe8440f499458a; >= 2bbb6983887fefc8026beab01198d30f47b7bd22, < 3a5834db2b1ce25649f330e78efe1ccde78967fd; 42802952a2725f85f7e36ee3b29593af5fe87197; >= 4.9.320, < 4.10
LinuxLinux4.14

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-93163?
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.
How severe is CVE-2026-93163?
Severity scoring for CVE-2026-93163 is pending analysis.
How do I fix CVE-2026-93163?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-93163?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST