Security researchers have uncovered and weaponized a critical Use-After-Free vulnerability (CVE-2025-38001) in the Linux network packet scheduler’s HFSC queuing discipline, successfully compromising Google kernelCTF instances—LTS, COS, and mitigation—and fully updated Debian 12. By ingeniously combining HFSC’s real-time scheduling mode, NETEM’s packet duplication feature, and a throttled Token Bucket Filter (TBF) root queue, the attack transforms […]

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Source: gbHackers
Source Link: https://gbhackers.com/researchers-exploit-google-kernelctf-and-debian-12/