pstore/ram: Should zap persistent zone on unlink
Otherwise, unlinked file will reappear on the next boot. Reported-by: Kees Cook <keescook@chromium.org> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -186,6 +186,7 @@ static int ramoops_pstore_erase(enum pstore_type_id type, u64 id,
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return -EINVAL;
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persistent_ram_free_old(cxt->przs[id]);
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persistent_ram_zap(cxt->przs[id]);
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return 0;
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}
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