{"id":"CVE-2026-99045","title":"ibmveth: h_free logical LAN on open-fail after register","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nibmveth: h_free logical LAN on open-fail after register\n\nibmveth_open() registers the logical LAN, then allocates the RX\nbuffer pools. A pool failure jumps to out_free_…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= d43732ce021f4244a4c53a45d57ad0c13c30ed94 < decb4d4ead2c71ef698727734ab5024a872eb372","Linux >= d43732ce021f4244a4c53a45d57ad0c13c30ed94 < c54bbdf6f0731102a4bf7f5e4ee535b3ea415996","Linux >= d43732ce021f4244a4c53a45d57ad0c13c30ed94 < a065bd31ec462f6f9c267026b708dd020f122723","Linux >= d43732ce021f4244a4c53a45d57ad0c13c30ed94 < d24fdec1413c656d29298097926e77542785ca0c","Linux >= d43732ce021f4244a4c53a45d57ad0c13c30ed94 < af0524bf4ce1a4cbd2946aa81751582951cfcab5","Linux 4.13"],"published":"2026-10-23","updated":"2026-10-23","sourceUpdated":"2026-10-23T12:22:09.352Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99045","references":[{"url":"https://git.kernel.org/stable/c/decb4d4ead2c71ef698727734ab5024a872eb372"},{"url":"https://git.kernel.org/stable/c/c54bbdf6f0731102a4bf7f5e4ee535b3ea415996"},{"url":"https://git.kernel.org/stable/c/a065bd31ec462f6f9c267026b708dd020f122723"},{"url":"https://git.kernel.org/stable/c/d24fdec1413c656d29298097926e77542785ca0c"},{"url":"https://git.kernel.org/stable/c/af0524bf4ce1a4cbd2946aa81751582951cfcab5"}],"tags":["cve.org"],"ingestedAt":"2026-10-23T13:24:55.527Z","slug":"CVE-2026-99045","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nibmveth: h_free logical LAN on open-fail after register\n\nibmveth_open() registers the logical LAN, then allocates the RX\nbuffer pools. A pool failure jumps to out_free_buffer_pools without\nh_free_logical_lan(), so PHYP still owns the buffer-list page when\nit is unmapped. request_irq() failure already issued the hypercall\nbefore taking the same label.\n\nMove that h_free to the shared post-register unwind so both paths\nderegister before the buffer list is unmapped.\n\n## Affected\n\n- `Linux >= d43732ce021f4244a4c53a45d57ad0c13c30ed94 < decb4d4ead2c71ef698727734ab5024a872eb372`\n- `Linux >= d43732ce021f4244a4c53a45d57ad0c13c30ed94 < c54bbdf6f0731102a4bf7f5e4ee535b3ea415996`\n- `Linux >= d43732ce021f4244a4c53a45d57ad0c13c30ed94 < a065bd31ec462f6f9c267026b708dd020f122723`\n- `Linux >= d43732ce021f4244a4c53a45d57ad0c13c30ed94 < d24fdec1413c656d29298097926e77542785ca0c`\n- `Linux >= d43732ce021f4244a4c53a45d57ad0c13c30ed94 < af0524bf4ce1a4cbd2946aa81751582951cfcab5`\n- `Linux 4.13`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}