Dirty Frag is a case that extends the bug class to which Dirty Pipe and Copy Fail belong. Because it is a deterministic logic bug that does not depend on a timing window, no race condition is required, the kernel does not panic when the exploit fails, and the success rate is very high.
. . .
The xfrm-ESP Page-Cache Write vulnerability is in scope from cac2661c53f3 (2017-01-17) up to upstream, and the RxRPC Page-Cache Write vulnerability is in scope from 2dc334f1a63a (2023-06) up to upstream.
In other words, the effective lifetime of the vulnerabilities is about 9 years.
This Dirty Frag has been tested on the following distribution versions.
Ubuntu 24.04.4: 6.17.0-23-generic
RHEL 10.1: 6.12.0-124.49.1.el10_1.x86_64
openSUSE Tumbleweed: 7.0.2-1-default
CentOS Stream 10: 6.12.0-224.el10.x86_64
AlmaLinux 10: 6.12.0-124.52.3.el10_1.x86_64
Fedora 44: 6.19.14-300.fc44.x86_64
https://github.com/V4bel/dirtyfrag
Mitigation
sh -c "printf 'install esp4 /bin/false\ninstall esp6 /bin/false\ninstall rxrpc /bin/false\n' > /etc/modprobe.d/dirtyfrag.conf; rmmod esp4 esp6 rxrpc 2>/dev/null; true"
Вот это вообще балдёж
> Because the embargo has currently been broken, no patch or CVE exists.