CVE-2026-89447

Sin historial EPSS suficiente todavía.

In the Linux kernel, the following vulnerability has been resolved: iommufd: Avoid locking internal accesses during unmap iommufd_access_notify_unmap() skips internal accesses because they do not have an external unmap callback to invoke. However, the current test calls iommufd_lock_obj() before checking whether the access is internal. If iommufd_lock_obj() succeeds, the loop then sees the internal access and continues, bypassing the matching iommufd_put_object() used by the normal unmap path. This leaks the object reference taken by iommufd_lock_obj(). Check for internal accesses first so skipped entries are never locked.

• git.kernel.orghttps://git.kernel.org/stable/c/0dbcdf4473a614adbd732d567c9b39ac0e040e0c
• git.kernel.orghttps://git.kernel.org/stable/c/436189ee4bb2c7c993b945d68570dd38c3e4349e
• git.kernel.orghttps://git.kernel.org/stable/c/50a66a63d1c841ae6b28a4551f642c1bba4c9529

Sin CVEs relacionados por CWE o producto.