cve/2024/CVE-2024-38544.md

### [CVE-2024-38544](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38544)
![](https://img.shields.io/static/v1?label=Product&message=Linux&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=4.12%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=blue)

### Description

In the Linux kernel, the following vulnerability has been resolved:RDMA/rxe: Fix seg fault in rxe_comp_queue_pktIn rxe_comp_queue_pkt() an incoming response packet skb is enqueued to theresp_pkts queue and then a decision is made whether to run the completertask inline or schedule it. Finally the skb is dereferenced to bump a 'hw'performance counter. This is wrong because if the completer task isalready running in a separate thread it may have already processed the skband freed it which can cause a seg fault.  This has been observedinfrequently in testing at high scale.This patch fixes this by changing the order of enqueuing the packet untilafter the counter is accessed.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/w4zu/Debian_security