Data Race Vulnerability in af_unix Package
Summary
GSD-2022-1003518: af_unix: Fix a data-race in unix_dgram_peer_wake_me(). Affects Kernel versions >= 7d267278a9ece963d77eefec61630223fce08c6c, < c61848500a3fd6867dfa4834b8c7f97133eceb9f. No fix is published. How to fix ↓
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Background
The af_unix package is a part of the Linux Kernel ecosystem and is responsible for providing Unix domain sockets, which allow communication between processes on the same host. Unix domain sockets use the file system as their address space and provide a reliable and efficient means of inter-process communication. However, a data race vulnerability has been identified in the unix_dgram_peer_wake_me() function of the af_unix package.
Vulnerability Detail
The data race vulnerability in unix_dgram_peer_wake_me() function of the af_unix package can lead to unexpected behavior and potential security risks. A data race occurs when two or more threads access shared data concurrently, and at least one of them performs a write operation. In this case, the vulnerability can result in inconsistent or corrupted data, leading to crashes, privilege escalation, or information disclosure. The vulnerability was introduced in version v4.4 of the Linux Kernel and has been fixed in version v5.10.122.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As this vulnerability has been fixed in the latest version of the Linux Kernel, there is no specific workaround available. It is strongly advised to update the Kernel to the recommended version to mitigate the vulnerability.
Conclusion
In conclusion, a data race vulnerability has been identified in the unix_dgram_peer_wake_me() function of the af_unix package in the Linux Kernel. This vulnerability can lead to unexpected behavior and potential security risks. It is crucial to update the Kernel to version v5.10.122 or later to mitigate the vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The af_unix package is a component of the Linux Kernel that provides Unix domain sockets for inter-process communication.
A data race vulnerability occurs when multiple threads access shared data concurrently, leading to unexpected behavior and potential security risks.
The data race vulnerability in the unix_dgram_peer_wake_me() function can result in crashes, privilege escalation, or information disclosure.
The vulnerability was introduced in version v4.4 of the Linux Kernel and has been fixed in version v5.10.122.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.122 or later.
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