From 2ab98abf0d2a820efa726a5e143133fc5993ed56 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 28 Jul 2020 23:33:33 +0200 Subject: modules: inherit TAINT_PROPRIETARY_MODULE commit 262e6ae7081df304fc625cf368d5c2cbba2bb991 upstream. If a TAINT_PROPRIETARY_MODULE exports symbol, inherit the taint flag for all modules importing these symbols, and don't allow loading symbols from TAINT_PROPRIETARY_MODULE modules if the module previously imported gplonly symbols. Add a anti-circumvention devices so people don't accidentally get themselves into trouble this way. Comment from Greg: "Ah, the proven-to-be-illegal "GPL Condom" defense :)" [jeyu: pr_info -> pr_err and pr_warn as per discussion] Link: http://lore.kernel.org/r/20200730162957.GA22469@lst.de Acked-by: Daniel Vetter Reviewed-by: Greg Kroah-Hartman Signed-off-by: Christoph Hellwig Signed-off-by: Jessica Yu Signed-off-by: Greg Kroah-Hartman --- include/linux/module.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/module.h') diff --git a/include/linux/module.h b/include/linux/module.h index 93392b24b847..008cfc08a664 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -359,6 +359,7 @@ struct module { unsigned int num_gpl_syms; const struct kernel_symbol *gpl_syms; const s32 *gpl_crcs; + bool using_gplonly_symbols; #ifdef CONFIG_UNUSED_SYMBOLS /* unused exported symbols. */ -- cgit v1.2.3