ABBA Deadlock Vulnerability in Linux Kernel Affecting Metadata Operations
CVE-2022-50549

Currently unrated

Key Information:

Vendor

Linux

Status
Vendor
CVE Published:
7 October 2025

What is CVE-2022-50549?

A vulnerability in the Linux kernel manifests as an ABBA deadlock between processes handling metadata operations and cache management. This condition arises when concurrent processes attempt to manage resources, leading to prolonged blocking and potential system hangs, affecting overall system stability and performance. The vulnerability has been addressed in updated kernel releases.

Affected Version(s)

Linux e49e582965b3694f07a106adc83ddb44aa4f0890 < 200aa33b5d781e7c0fa6c0c7db9dbcc3f574ce8f

Linux e49e582965b3694f07a106adc83ddb44aa4f0890 < 7e37578069737b04955c71dd85db8a3bc2709eff

Linux e49e582965b3694f07a106adc83ddb44aa4f0890

References

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2022-50549 : ABBA Deadlock Vulnerability in Linux Kernel Affecting Metadata Operations