diff options
Diffstat (limited to 'arch/x86/lib')
| -rw-r--r-- | arch/x86/lib/insn.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c index 54fcffed28ed..2480978b31cc 100644 --- a/arch/x86/lib/insn.c +++ b/arch/x86/lib/insn.c @@ -28,7 +28,7 @@ /* Verify next sizeof(t) bytes can be on the same instruction */ #define validate_next(t, insn, n) \ - ((insn)->next_byte + sizeof(t) + n - (insn)->kaddr <= MAX_INSN_SIZE) + ((insn)->next_byte + sizeof(t) + n < (insn)->end_kaddr) #define __get_next(t, insn) \ ({ t r = *(t*)insn->next_byte; insn->next_byte += sizeof(t); r; }) @@ -50,10 +50,11 @@ * @kaddr: address (in kernel memory) of instruction (or copy thereof) * @x86_64: !0 for 64-bit kernel or 64-bit app */ -void insn_init(struct insn *insn, const void *kaddr, int x86_64) +void insn_init(struct insn *insn, const void *kaddr, int buf_len, int x86_64) { memset(insn, 0, sizeof(*insn)); insn->kaddr = kaddr; + insn->end_kaddr = kaddr + buf_len; insn->next_byte = kaddr; insn->x86_64 = x86_64 ? 1 : 0; insn->opnd_bytes = 4; |