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Enhance mitigation instructions in README

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Updated mitigation instructions to include clearing the page cache after removing vulnerable modules.
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Nate River 2026-05-08 13:49:44 +08:00 • committed by GitHub
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@ -53,9 +53,9 @@ This Dirty Frag has been tested on the following distribution versions.
# Mitigation # Mitigation
1. Because the responsible disclosure schedule and the embargo have been broken, no patch exists for any distribution. Use the following command to remove the modules in which the vulnerabilities occur. 1. Because the responsible disclosure schedule and the embargo have been broken, no patch exists for any distribution. Use the following command to remove the modules in which the vulnerabilities occur and clear the page cache.
``` ```bash
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" 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; echo 3 > /proc/sys/vm/drop_caches; true"
``` ```
2. Once each distribution backports a patch, update accordingly. 2. Once each distribution backports a patch, update accordingly.