{"id":"CVE-2026-98506","title":"mm/hugetlb: do not dissolve gigantic pages without runtime support","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: do not dissolve gigantic pages without runtime support\n\ndissolve_free_hugetlb_folio() doesn't check\nhstate_is_gigantic_no_runtime(h) though remove_hugetlb_f…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 < ddc1055b557506a6ea8930dfbd8d1555d6a3f01e","Linux >= 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 < ccf96a4b8626a001c13c5836d8357f31c57bbd8e","Linux >= 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 < 443628f755b35bf45044f68b970b65cd531c42fd","Linux >= 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 < a363c62a653cc8b3e21da9545fa4e028ef50f9c3","Linux 5.13"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:17:12.898Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98506","references":[{"url":"https://git.kernel.org/stable/c/ddc1055b557506a6ea8930dfbd8d1555d6a3f01e"},{"url":"https://git.kernel.org/stable/c/ccf96a4b8626a001c13c5836d8357f31c57bbd8e"},{"url":"https://git.kernel.org/stable/c/443628f755b35bf45044f68b970b65cd531c42fd"},{"url":"https://git.kernel.org/stable/c/a363c62a653cc8b3e21da9545fa4e028ef50f9c3"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T15:45:12.287Z","slug":"CVE-2026-98506","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: do not dissolve gigantic pages without runtime support\n\ndissolve_free_hugetlb_folio() doesn't check\nhstate_is_gigantic_no_runtime(h) though remove_hugetlb_folio()/\nupdate_and_free_hugetlb_folio() silently bail for such folios, so it frees\na still-listed folio and, on vmemmap restore failure, the\nadd_hugetlb_folio() rollback corrupts the free list.\n\n## Affected\n\n- `Linux >= 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 < ddc1055b557506a6ea8930dfbd8d1555d6a3f01e`\n- `Linux >= 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 < ccf96a4b8626a001c13c5836d8357f31c57bbd8e`\n- `Linux >= 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 < 443628f755b35bf45044f68b970b65cd531c42fd`\n- `Linux >= 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 < a363c62a653cc8b3e21da9545fa4e028ef50f9c3`\n- `Linux 5.13`\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":[]}