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Subject[PATCH] x86: Preserve iopl on fork and execve
Date
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Suggested-by: Doug Johnson <dougvj@dougvj.net>
---
arch/x86/kernel/process_32.c | 2 +-
arch/x86/kernel/process_64.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 8ed2106..86bfe7c 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -205,7 +205,7 @@ start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp)
regs->cs = __USER_CS;
regs->ip = new_ip;
regs->sp = new_sp;
- regs->flags = X86_EFLAGS_IF;
+ regs->flags |= X86_EFLAGS_IF;
force_iret();
}
EXPORT_SYMBOL_GPL(start_thread);
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index ddfdbf7..fc22e5d 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -238,7 +238,7 @@ start_thread_common(struct pt_regs *regs, unsigned long new_ip,
regs->sp = new_sp;
regs->cs = _cs;
regs->ss = _ss;
- regs->flags = X86_EFLAGS_IF;
+ regs->flags |= X86_EFLAGS_IF;
force_iret();
}

--
2.4.0


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