Vulnerability in coresight: cpu-debug Package
Summary
GSD-2022-1002658: coresight: cpu-debug: Replace mutex with mutex_trylock on panic notifier. Affects Kernel versions >= 2227b7c7463402ce92706a6f35c82cad6e8ee19a, < c0a39ce74080b4cfc276c22b03626fb4df398e37. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The coresight: cpu-debug package is a component of the Linux Kernel ecosystem. It provides functionality for debugging CPUs in the coresight subsystem. The package includes a panic notifier feature that is responsible for handling system panics. This vulnerability affects versions of the Linux Kernel from v4.13 to v5.18.3. The vulnerability was introduced in v4.13 and fixed in v5.18.4.
Vulnerability Detail
The vulnerability in coresight: cpu-debug involves the use of a mutex in the panic notifier. The mutex is not properly handled, which can lead to a deadlock situation during a system panic. An attacker could potentially exploit this vulnerability to cause a denial-of-service (DoS) condition by triggering a system panic. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
In conclusion, the coresight: cpu-debug package in the Linux Kernel is vulnerable to a deadlock situation during a system panic. This vulnerability can potentially lead to a denial-of-service (DoS) condition. It is recommended to update the Linux Kernel to version v5.18.4 or later to fix this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The impact of this vulnerability is a potential denial-of-service (DoS) condition caused by a system panic.
An attacker can exploit this vulnerability by triggering a system panic, which can lead to a deadlock situation.
There is no evidence of this vulnerability being actively exploited at the moment.
The recommended mitigation is to update the Linux Kernel to version v5.18.4 or later.
For more details about this vulnerability, you can refer to the source link provided in the database_specific section of the vulnerability details.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
