CVE-2026-98281
Received
Received - Intake
Futex Private Hash Allocation in Linux Kernel
Vulnerability report for CVE-2026-98281, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-06
Last updated on: 2026-10-06
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
futex: Also allocate private hash on vfork()
As Jann demonstrated, it is entirely feasible to access the mm through vfork().
Therefore we need to allocate a private hash on vfork() as well as any other
CLONE_VM user.
Specifically, it must be avoided to have (private) futex waiters before
allocating the private hash.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | 1dcd36420af2da5bd59306dba9caf78e3d248b1d |
| Linux | Linux | ee9dce44362b2d8132c32964656ab6dff7dfbc6a |
| Linux | Linux | ee9dce44362b2d8132c32964656ab6dff7dfbc6a |
| Linux | Linux | 974ac49a9a068b0591a59f65c63eb06579a13091 |
| Linux | Linux | 6.18.33 |
| Linux | Linux | 7.0.10 |
| Linux | Linux | 7.1 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |