diff options
Diffstat (limited to 'arch/x86_64/kernel/ptrace.c')
| -rw-r--r-- | arch/x86_64/kernel/ptrace.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c index c7011675007d..e26e86bb56fe 100644 --- a/arch/x86_64/kernel/ptrace.c +++ b/arch/x86_64/kernel/ptrace.c @@ -18,6 +18,7 @@ #include <linux/security.h> #include <linux/audit.h> #include <linux/seccomp.h> +#include <linux/signal.h> #include <asm/uaccess.h> #include <asm/pgtable.h> @@ -467,7 +468,7 @@ asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, long data case PTRACE_CONT: /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child,TIF_SYSCALL_TRACE); @@ -529,7 +530,7 @@ asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, long data case PTRACE_SINGLESTEP: /* set the trap flag. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child,TIF_SYSCALL_TRACE); set_singlestep(child); @@ -634,20 +635,29 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs) /* do the secure computing check first */ secure_computing(regs->orig_rax); - if (unlikely(current->audit_context)) - audit_syscall_entry(current, regs->orig_rax, - regs->rdi, regs->rsi, - regs->rdx, regs->r10); - if (test_thread_flag(TIF_SYSCALL_TRACE) && (current->ptrace & PT_PTRACED)) syscall_trace(regs); + + if (unlikely(current->audit_context)) { + if (test_thread_flag(TIF_IA32)) { + audit_syscall_entry(current, AUDIT_ARCH_I386, + regs->orig_rax, + regs->rbx, regs->rcx, + regs->rdx, regs->rsi); + } else { + audit_syscall_entry(current, AUDIT_ARCH_X86_64, + regs->orig_rax, + regs->rdi, regs->rsi, + regs->rdx, regs->r10); + } + } } asmlinkage void syscall_trace_leave(struct pt_regs *regs) { if (unlikely(current->audit_context)) - audit_syscall_exit(current, regs->rax); + audit_syscall_exit(current, AUDITSC_RESULT(regs->rax), regs->rax); if ((test_thread_flag(TIF_SYSCALL_TRACE) || test_thread_flag(TIF_SINGLESTEP)) |