Boletines de Vulnerabilidades

CVE-2026-72328

   
Software afectado AMD
 
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.

Link:

https://nvd.nist.gov/vuln/detail/CVE-2026-72328