Christian Brauner
76d0ec8b97
PTRACE_POKETEXT and PTRACE_POKEDATA use FOLL_FORCE to forcibly write into a tracee's memory. That includes executable read-only pages. If we restrict execution to trusted binaries PID 1 must enforce that it's impossible to abuse this to get untrusted code execution. Note, that usermodehelpers are not subject to PID 1's seccomp filters. Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
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