Summary
An unprivileged process can easily trigger the processPIDEvents goroutine to be blocked indefinitely, preventing the goroutine from analyzing any new ELF file. The goroutine stays blocked in the openat2 syscall forever and the profiler can no longer work properly, it is a denial of service.
Impact
The impact is limited to denial-of-service on the ebpf-profiler agent:
- There has to be a malicious workload albeit unprivileged.
- No exfiltration of data. No loss of data.
Fix
Fixed in 234b685.
Fix is part of v.0.0.202622.
alban Reporter
christos68k Remediation reviewer
florianl Remediation developer
Summary
An unprivileged process can easily trigger the
processPIDEventsgoroutine to be blocked indefinitely, preventing the goroutine from analyzing any new ELF file. The goroutine stays blocked in theopenat2syscall forever and the profiler can no longer work properly, it is a denial of service.Impact
The impact is limited to denial-of-service on the ebpf-profiler agent:
Fix
Fixed in 234b685.
Fix is part of v.0.0.202622.