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authorNikolay Borisov <nik.borisov@suse.com>2023-06-23 14:14:07 +0300
committerThomas Gleixner <tglx@linutronix.de>2023-09-14 13:19:53 +0200
commit5ae2702d7c482edbf002499e23a2e22ac4047af1 (patch)
tree76fbe12e5aa3598b2097b0fbe64af430553e7cd6
parent370dcd58548a360bbf8a65b89b410d09f56bf0c6 (diff)
x86/elf: Make loading of 32bit processes depend on ia32_enabled()
Major aspect of ia32 emulation is the ability to load 32bit processes. That's currently decided (among others) by compat_elf_check_arch(). Make the macro use ia32_enabled() to decide if IA32 compat is enabled before loading a 32bit process. Signed-off-by: Nikolay Borisov <nik.borisov@suse.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20230623111409.3047467-5-nik.borisov@suse.com
-rw-r--r--arch/x86/include/asm/elf.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 18fd06f7936a..a0234dfd1031 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -7,6 +7,7 @@
*/
#include <linux/thread_info.h>
+#include <asm/ia32.h>
#include <asm/ptrace.h>
#include <asm/user.h>
#include <asm/auxvec.h>
@@ -149,7 +150,7 @@ do { \
((x)->e_machine == EM_X86_64)
#define compat_elf_check_arch(x) \
- (elf_check_arch_ia32(x) || \
+ ((elf_check_arch_ia32(x) && ia32_enabled()) || \
(IS_ENABLED(CONFIG_X86_X32_ABI) && (x)->e_machine == EM_X86_64))
static inline void elf_common_init(struct thread_struct *t,