CVE-2026-63953
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page
When migrate_vma_insert_huge_pmd_page() jumps to unlock_abort due to a PMD check failure, the pgtable allocated earlier via pte_alloc_one() is never freed, causing a memory leak.
Added free_abort label to release the pgtable in error path.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | a30b48bf1b244f11bf9b6d20cdccfe0c2264130c < 24861d04f197bb651e9dfb211978271c15f75a98 | affected |
| Linux | Linux | a30b48bf1b244f11bf9b6d20cdccfe0c2264130c < 2c6f81d58741349298f51ff697d988cb42881453 | affected |
| Linux | Linux | 6.19 | affected |
| Linux | Linux | 0 < 6.19 | unaffected |
| Linux | Linux | 7.0.12 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/24861d04f197bb651e9dfb211978271c15f75a98
- https://git.kernel.org/stable/c/2c6f81d58741349298f51ff697d988cb42881453
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