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-rw-r--r--arch/x86/mm/fault.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 33842556ce70..9d3c576a6b2e 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -589,6 +589,7 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
unsigned long address;
int write, si_code;
int fault;
+ int should_exit_no_context = 0;
#ifdef CONFIG_X86_64
unsigned long flags;
#endif
@@ -876,6 +877,9 @@ no_context:
oops_end(flags, regs, SIGKILL);
#endif
+ if (should_exit_no_context)
+ return;
+
/*
* We ran out of memory, or some other thing happened to us that made
* us unable to handle the page fault gracefully.
@@ -901,8 +905,11 @@ do_sigbus:
up_read(&mm->mmap_sem);
/* Kernel mode? Handle exceptions or die */
- if (!(error_code & PF_USER))
+ if (!(error_code & PF_USER)) {
+ should_exit_no_context = 1;
goto no_context;
+ }
+
#ifdef CONFIG_X86_32
/* User space => ok to do another page fault */
if (is_prefetch(regs, address, error_code))