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3aec4ecb3d
When kCFI is enabled, special handling is needed for the indirect call to the kernel thread function. Rewrite the ret_from_fork() function in C so that the compiler can properly handle the indirect call. Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Sami Tolvanen <samitolvanen@google.com> Link: https://lkml.kernel.org/r/20230623225529.34590-3-brgerst@gmail.com |
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