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Dirty Frag Shows Linux Has a Deeper Page Cache Problem
Dirty Frag is a newly disclosed Linux local privilege escalation technique that chains two page-cache write vulnerabilities to gain root on major Linux distributions. The issue has no public CVE yet, no distribution patches at disclosure, and belongs to the same broader bug family as Dirty Pipe and Copy Fail.
A new Linux privilege escalation technique called Dirty Frag has been publicly released, and it points to a bigger issue than one isolated kernel bug. Dirty Frag is described as a universal Linux local privilege escalation chain. According to the public...
