Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix potential amdxdna_umap lifetime race amdxdna_umap_release() calls the blocking mmu_interval_notifier_remove() before removing the object from abo->mem.umap_list. If aie2_populate_range() runs concurrently, it may obtain a reference to an amdxdna_umap that is being released, leading to a potential use-after-free. Use kref_get_unless_zero() in aie2_populate_range() when acquiring a reference. If the reference count has already dropped to zero, release is in progress and the entry is skipped.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e486147c912f653ef4b60a6c7dbd4168a4c56a9f before 267809e2c56fbea486f7250c8a4acddcc3c54dc5; affected e486147c912f653ef4b60a6c7dbd4168a4c56a9f before 91e8109ecffb925b6202d2737384df285b195bfb; affected e486147c912f653ef4b60a6c7dbd4168a4c56a9f before 14f172eff9c19f8043a9858845f33cd034f3a41e |
| Linux / Linux | affected 6.16; unaffected 0 before 6.16; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.