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-rw-r--r--arch/arm/kernel/kprobes-decode.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/arm/kernel/kprobes-decode.c b/arch/arm/kernel/kprobes-decode.c
index baf053ea96eb..e5bc576ba3fb 100644
--- a/arch/arm/kernel/kprobes-decode.c
+++ b/arch/arm/kernel/kprobes-decode.c
@@ -1026,14 +1026,16 @@ space_cccc_000x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
/* cccc 0001 0xx0 xxxx xxxx xxxx xxxx xxx0 xxxx */
if ((insn & 0x0f900010) == 0x01000000) {
- /* BXJ : cccc 0001 0010 xxxx xxxx xxxx 0010 xxxx */
- /* MSR : cccc 0001 0x10 xxxx xxxx xxxx 0000 xxxx */
+ /* BXJ : cccc 0001 0010 xxxx xxxx xxxx 0010 xxxx */
+ /* MSR : cccc 0001 0x10 xxxx xxxx xxxx 0000 xxxx */
+ /* MRS spsr : cccc 0001 0100 xxxx xxxx xxxx 0000 xxxx */
if ((insn & 0x0ff000f0) == 0x01200020 ||
- (insn & 0x0fb000f0) == 0x01200000)
+ (insn & 0x0fb000f0) == 0x01200000 ||
+ (insn & 0x0ff000f0) == 0x01400000)
return INSN_REJECTED;
- /* MRS : cccc 0001 0x00 xxxx xxxx xxxx 0000 xxxx */
- if ((insn & 0x0fb00010) == 0x01000000)
+ /* MRS cpsr : cccc 0001 0000 xxxx xxxx xxxx 0000 xxxx */
+ if ((insn & 0x0ff000f0) == 0x01000000)
return prep_emulate_rd12(insn, asi);
/* SMLALxy : cccc 0001 0100 xxxx xxxx xxxx 1xx0 xxxx */