diff options
| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2008-05-01 11:04:55 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-05-09 21:40:49 -0700 |
| commit | ac5b631e8ffc2f63b3f23a5c03c13186b21b4a08 (patch) | |
| tree | ad88e9058b2b016afb8e77a4b86c27b467256f77 | |
| parent | 6d45756316559c7ee0e68b2541305a8867d8ef6f (diff) | |
kprobes/arm: fix decoding of arithmetic immediate instructions
The ARM kprobes arithmetic immediate instruction decoder
(space_cccc_001x()) was accidentally zero'ing out not only the Rn and
Rd arguments, but the lower nibble of the immediate argument as well
-- this patch fixes this.
Mainline commit: a3fd133c24e16d430ba21f3d9f5c0b8faeeb37fe
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | arch/arm/kernel/kprobes-decode.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kernel/kprobes-decode.c b/arch/arm/kernel/kprobes-decode.c index d51bc8b6055..b4565bb133c 100644 --- a/arch/arm/kernel/kprobes-decode.c +++ b/arch/arm/kernel/kprobes-decode.c @@ -1176,7 +1176,7 @@ space_cccc_001x(kprobe_opcode_t insn, struct arch_specific_insn *asi) * *S (bit 20) updates condition codes * ADC/SBC/RSC reads the C flag */ - insn &= 0xfff00ff0; /* Rn = r0, Rd = r0 */ + insn &= 0xfff00fff; /* Rn = r0, Rd = r0 */ asi->insn[0] = insn; asi->insn_handler = (insn & (1 << 20)) ? /* S-bit */ emulate_alu_imm_rwflags : emulate_alu_imm_rflags; |