CVE-2026-93163
hwrng: core - fix rng list on registration error
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
2bbb6983887fefc8026beab01198d30f47b7bd22 < de4f1bcb61a73cc896decdbd27d61a34add93b53 2bbb6983887fefc8026beab01198d30f47b7bd22 < cf293c9c7424de0d04b51367d07f40570ce80231 2bbb6983887fefc8026beab01198d30f47b7bd22 < bee8d1fcdc8f389b595b0a4cf6fe8440f499458a 2bbb6983887fefc8026beab01198d30f47b7bd22 < 3a5834db2b1ce25649f330e78efe1ccde78967fd 42802952a2725f85f7e36ee3b29593af5fe87197 4.9.320 < 4.10
Linux / Linux
4.14
References
git.kernel.org: https://git.kernel.org/stable/c/de4f1bcb61a73cc896decdbd27d61a34add93b53 git.kernel.org: https://git.kernel.org/stable/c/cf293c9c7424de0d04b51367d07f40570ce80231 git.kernel.org: https://git.kernel.org/stable/c/bee8d1fcdc8f389b595b0a4cf6fe8440f499458a git.kernel.org: https://git.kernel.org/stable/c/3a5834db2b1ce25649f330e78efe1ccde78967fd