Home
Trends
Vulnerabilities
News
Researchers
Why dbugs?

Konstantin Kharlamov

#46198of 53,640
5.5Total CVSS
Vulnerabilities · 1
PT-2024-11060
5.5
2021-04-30
Linux · Linux Kernel · CVE-2021-46939
**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** A vulnerability in the Linux kernel has been resolved, related to the tracing feature. The issue occurred when a fix to the ring buffer recursion detection caused a hung machine during suspend/resume testing. The problem arose from the `trace clock global()` function taking a spin lock and then trying to take it again, resulting in a dead lock. To address this, the `trace clock global()` code was restructured to never block, using a trylock to grab the lock for updating the `prev time` and retrying if it fails. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.