CVE-2026-93163hwrng: core - fix rng list on registration error
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 2bbb6983887fefc8026beab01198d30f47b7bd22 before de4f1bcb61a73cc896decdbd27d61a34add93b53; from 2bbb6983887fefc8026beab01198d30f47b7bd22 before cf293c9c7424de0d04b51367d07f40570ce80231; from 2bbb6983887fefc8026beab01198d30f47b7bd22 before bee8d1fcdc8f389b595b0a4cf6fe8440f499458a; from 2bbb6983887fefc8026beab01198d30f47b7bd22 before 3a5834db2b1ce25649f330e78efe1ccde78967fd; 42802952a2725f85f7e36ee3b29593af5fe87197; from 4.9.320 before 4.10 | CNA record |
References
- https://git.kernel.org/stable/c/de4f1bcb61a73cc896decdbd27d61a34add93b53
- https://git.kernel.org/stable/c/cf293c9c7424de0d04b51367d07f40570ce80231
- https://git.kernel.org/stable/c/bee8d1fcdc8f389b595b0a4cf6fe8440f499458a
- https://git.kernel.org/stable/c/3a5834db2b1ce25649f330e78efe1ccde78967fd
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.