01 Record

CVE-2026-45949

hwrng: core - use RCU and work_struct to fix race condition

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

hwrng: core - use RCU and work_struct to fix race condition

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.08% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 0.3% of scored records. A rank, not a probability.
NVD base score: 4.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-10-21.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-05-27 12:18Z5 MO AGO

Last updated

2026-10-21 12:41Z7 DAYS AGO

Reserved

2026-05-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
CWE-364Signal Handler Race ConditionBase

Data version

5.2

Document digest

bba382aff9c81a8ecb7056663294a4c6ad0a94907ae0c0537fa7ea2c00935f8b

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxbe4000bc4644d027c519b6361f5ae3bbfc52c347 to < 1cde96d5d53b9105b48617afbc4682a83db4ff04, be4000bc4644d027c519b6361f5ae3bbfc52c347 to < d5b7730f06994499632026c30e38e0317c4569e2, be4000bc4644d027c519b6361f5ae3bbfc52c347 to < dcf416eb88eafe1e3c0f920a14bdffd10bc4d259, be4000bc4644d027c519b6361f5ae3bbfc52c347 to < ad38f2cdfef9a2f2899c30cad269baec5bfd4a5d, be4000bc4644d027c519b6361f5ae3bbfc52c347 to < cc2f39d6ac48e6e3cb2d6240bc0d6df839dd0828, 3.17—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/1cde96d5d53b9105b48617afbc4682a83db4ff04
git.kernel.orghttps://git.kernel.org/stable/c/d5b7730f06994499632026c30e38e0317c4569e2
git.kernel.orghttps://git.kernel.org/stable/c/dcf416eb88eafe1e3c0f920a14bdffd10bc4d259
git.kernel.orghttps://git.kernel.org/stable/c/ad38f2cdfef9a2f2899c30cad269baec5bfd4a5d
git.kernel.orghttps://git.kernel.org/stable/c/cc2f39d6ac48e6e3cb2d6240bc0d6df839dd0828

07 Fixed in

Debian 12

linux
No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.85-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.18.14-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.