Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected d43732ce021f4244a4c53a45d57ad0c13c30ed94 before decb4d4ead2c71ef698727734ab5024a872eb372; affected d43732ce021f4244a4c53a45d57ad0c13c30ed94 before c54bbdf6f0731102a4bf7f5e4ee535b3ea415996; affected d43732ce021f4244a4c53a45d57ad0c13c30ed94 before a065bd31ec462f6f9c267026b708dd020f122723; affected d43732ce021f4244a4c53a45d57ad0c13c30ed94 before d24fdec1413c656d29298097926e77542785ca0c; affected d43732ce021f4244a4c53a45d57ad0c13c30ed94 before af0524bf4ce1a4cbd2946aa81751582951cfcab5 |
| Linux / Linux | affected 4.13; unaffected 0 before 4.13; unaffected 6.6.160 through 6.6.*; unaffected 6.12.113 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.2.11 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/decb4d4ead2c71ef698727734ab5024a872eb372
- https://git.kernel.org/stable/c/c54bbdf6f0731102a4bf7f5e4ee535b3ea415996
- https://git.kernel.org/stable/c/a065bd31ec462f6f9c267026b708dd020f122723
- https://git.kernel.org/stable/c/d24fdec1413c656d29298097926e77542785ca0c
- https://git.kernel.org/stable/c/af0524bf4ce1a4cbd2946aa81751582951cfcab5