CVEs-PoC/2017/CVE-2017-7374.md

### [CVE-2017-7374](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7374)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

Use-after-free vulnerability in fs/crypto/ in the Linux kernel before 4.10.7 allows local users to cause a denial of service (NULL pointer dereference) or possibly gain privileges by revoking keyring keys being used for ext4, f2fs, or ubifs encryption, causing cryptographic transform objects to be freed prematurely.

### POC

#### Reference
- https://github.com/torvalds/linux/commit/1b53cf9815bb4744958d41f3795d5d5a1d365e2d

#### Github
- https://github.com/chanbin/CVE-2017-11882
- https://github.com/ictnamanh/CVE-2017-9248
- https://github.com/ww9210/cve-2017-7374