Vulnerability 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.
References
- https://git.kernel.org/stable/c/073df7871a7023298ce27cfa518fbc30cc155651
- https://git.kernel.org/stable/c/7bd67d324d952101b3431c796d79f5e329bba159
- https://git.kernel.org/stable/c/a065bd31ec462f6f9c267026b708dd020f122723
- https://git.kernel.org/stable/c/af0524bf4ce1a4cbd2946aa81751582951cfcab5
- https://git.kernel.org/stable/c/c54bbdf6f0731102a4bf7f5e4ee535b3ea415996
- https://git.kernel.org/stable/c/d24fdec1413c656d29298097926e77542785ca0c
- https://git.kernel.org/stable/c/decb4d4ead2c71ef698727734ab5024a872eb372
- https://git.kernel.org/stable/c/eae138e880686ce19879aa0d158fa3c73516f632
FAQ
What is CVE-2026-99045?
CVE-2026-99045 is a documented vulnerability. 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 poo...
How severe is CVE-2026-99045?
CVSS scoring is not yet available for CVE-2026-99045. Check NVD for updates.
Is there a patch for CVE-2026-99045?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.