diff options
Diffstat (limited to 'sys/amd64/ia32/ia32_syscall.c')
| -rw-r--r-- | sys/amd64/ia32/ia32_syscall.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sys/amd64/ia32/ia32_syscall.c b/sys/amd64/ia32/ia32_syscall.c index 0cdec6f..92249f9 100644 --- a/sys/amd64/ia32/ia32_syscall.c +++ b/sys/amd64/ia32/ia32_syscall.c @@ -110,7 +110,7 @@ ia32_fetch_syscall_args(struct thread *td, struct syscall_args *sa) struct proc *p; struct trapframe *frame; caddr_t params; - u_int32_t args[8]; + u_int32_t args[8], tmp; int error, i; p = td->td_proc; @@ -126,7 +126,10 @@ ia32_fetch_syscall_args(struct thread *td, struct syscall_args *sa) /* * Code is first argument, followed by actual args. */ - sa->code = fuword32(params); + error = fueword32(params, &tmp); + if (error == -1) + return (EFAULT); + sa->code = tmp; params += sizeof(int); } else if (sa->code == SYS___syscall) { /* @@ -135,7 +138,10 @@ ia32_fetch_syscall_args(struct thread *td, struct syscall_args *sa) * We use a 32-bit fetch in case params is not * aligned. */ - sa->code = fuword32(params); + error = fueword32(params, &tmp); + if (error == -1) + return (EFAULT); + sa->code = tmp; params += sizeof(quad_t); } if (p->p_sysent->sv_mask) |
