@@ -61,6 +61,7 @@
#include <asm/mpx.h>
#include <asm/vm86.h>
#include <asm/umip.h>
+#include <asm/vdso.h>
#ifdef CONFIG_X86_64
#include <asm/x86_init.h>
@@ -210,6 +211,9 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, const char *str,
tsk->thread.error_code = error_code;
tsk->thread.trap_nr = trapnr;
die(str, regs, error_code);
+ } else {
+ if (fixup_vdso_exception(regs, trapnr, error_code, 0))
+ return 0;
}
/*
@@ -557,6 +561,9 @@ do_general_protection(struct pt_regs *regs, long error_code)
return;
}
+ if (fixup_vdso_exception(regs, X86_TRAP_GP, error_code, 0))
+ return;
+
tsk->thread.error_code = error_code;
tsk->thread.trap_nr = X86_TRAP_GP;
@@ -771,6 +778,10 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
SIGTRAP) == NOTIFY_STOP)
goto exit;
+ if (user_mode(regs) &&
+ fixup_vdso_exception(regs, X86_TRAP_DB, error_code, 0))
+ goto exit;
+
/*
* Let others (NMI) know that the debug stack is in use
* as we may switch to the interrupt stack.
@@ -851,6 +862,9 @@ static void math_error(struct pt_regs *regs, int error_code, int trapnr)
if (!si_code)
return;
+ if (fixup_vdso_exception(regs, trapnr, error_code, 0))
+ return;
+
force_sig_fault(SIGFPE, si_code,
(void __user *)uprobe_get_trap_addr(regs));
}
@@ -29,6 +29,7 @@
#include <asm/efi.h> /* efi_recover_from_page_fault()*/
#include <asm/desc.h> /* store_idt(), ... */
#include <asm/cpu_entry_area.h> /* exception stack */
+#include <asm/vdso.h> /* fixup_vdso_exception() */
#define CREATE_TRACE_POINTS
#include <asm/trace/exceptions.h>
@@ -901,6 +902,10 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
sanitize_error_code(address, &error_code);
+ if (fixup_vdso_exception(regs, X86_TRAP_PF, error_code,
+ address))
+ return;
+
if (likely(show_unhandled_signals))
show_signal_msg(regs, error_code, address, tsk);
@@ -1018,6 +1023,9 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
sanitize_error_code(address, &error_code);
+ if (fixup_vdso_exception(regs, X86_TRAP_PF, error_code, address))
+ return;
+
set_signal_archinfo(address, error_code);
#ifdef CONFIG_MEMORY_FAILURE