CVE-2026-99045
Received
Received - Intake
ibmveth Logical LAN Release Failure on Open
Vulnerability report for CVE-2026-99045, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-23
Last updated on: 2026-10-23
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
ibmveth: h_free logical LAN on open-fail after register
ibmveth_open() registers the logical LAN, then allocates the RX
buffer pools. A pool failure jumps to out_free_buffer_pools without
h_free_logical_lan(), so PHYP still owns the buffer-list page when
it is unmapped. request_irq() failure already issued the hypercall
before taking the same label.
Move that h_free to the shared post-register unwind so both paths
deregister before the buffer list is unmapped.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | d43732ce021f4244a4c53a45d57ad0c13c30ed94 |
| Linux | Linux | d43732ce021f4244a4c53a45d57ad0c13c30ed94 |
| Linux | Linux | d43732ce021f4244a4c53a45d57ad0c13c30ed94 |
| Linux | Linux | d43732ce021f4244a4c53a45d57ad0c13c30ed94 |
| Linux | Linux | d43732ce021f4244a4c53a45d57ad0c13c30ed94 |
| Linux | Linux | 4.13 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
