Fix refcount leak bug in of_xudma_dev_get()

CVE-2022-48656
5.5MEDIUM

Key Information

Vendor
Linux
Status
Linux
Vendor
CVE Published:
28 April 2024

Badges

👾 Exploit Exists🔴 Public PoC

Summary

In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: k3-udma-private: Fix refcount leak bug in of_xudma_dev_get() We should call of_node_put() for the reference returned by of_parse_phandle() in fail path or when it is not used anymore. Here we only need to move the of_node_put() before the check.

Affected Version(s)

Linux < d70241913413

Linux < d70241913413

Linux < d70241913413

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2022-48656-POC
Created by Einstein2150

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit exists.

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database1 Proof of Concept(s)
.