Linux · Linux Kernel · CVE-2021-46927
**Name of the Vulnerable Software and Affected Versions**
Linux kernel (affected versions not specified)
**Description**
The vulnerability is related to the use of the `get user pages unlocked()` call to handle mmap assert in the `nitro enclaves` component of the Linux kernel. After a specific commit, the call to `get user pages()` triggers the mmap assert, which can lead to a denial of service. The issue is caused by the lack of proper locking, as indicated by the `mmap assert locked()` function. The vulnerability can be exploited by an attacker to cause a denial of service.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.