CVE-2026-64129
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/migrate_device: fix spinlock leak in migrate_vma_insert_huge_pmd_page
When check_stable_address_space() fails after the PMD spinlock has been acquired via pmd_lock(), the code jumps directly to the abort label, bypassing the spin_unlock() call in unlock_abort. This causes the PMD spinlock to be permanently held, leading to a deadlock.
Change the goto target from abort to unlock_abort to ensure the spinlock is always released on this error path.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | a30b48bf1b244f11bf9b6d20cdccfe0c2264130c < c715f7ccf7a294c058667b678a4ba50fad933c62 | affected |
| Linux | Linux | a30b48bf1b244f11bf9b6d20cdccfe0c2264130c < 63451de16e0a08be40f9ab5e7c5c8f5c79676fb1 | affected |
| Linux | Linux | 6.19 | affected |
| Linux | Linux | 0 < 6.19 | unaffected |
| Linux | Linux | 7.0.11 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/c715f7ccf7a294c058667b678a4ba50fad933c62
- https://git.kernel.org/stable/c/63451de16e0a08be40f9ab5e7c5c8f5c79676fb1
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.