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-rw-r--r--arch/x86/ia32/ptrace32.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/ia32/ptrace32.c b/arch/x86/ia32/ptrace32.c
index 4a233ad6269..f52770ef0ee 100644
--- a/arch/x86/ia32/ptrace32.c
+++ b/arch/x86/ia32/ptrace32.c
@@ -228,6 +228,8 @@ static long ptrace32_siginfo(unsigned request, u32 pid, u32 addr, u32 data)
return ret;
}
+#define COMPAT_GDT_ENTRY_TLS_MIN 6
+
asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
{
struct task_struct *child;
@@ -246,8 +248,6 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
case PTRACE_SYSCALL:
case PTRACE_OLDSETOPTIONS:
case PTRACE_SETOPTIONS:
- case PTRACE_SET_THREAD_AREA:
- case PTRACE_GET_THREAD_AREA:
return sys_ptrace(request, pid, addr, data);
default:
@@ -271,6 +271,12 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
case PTRACE_SETSIGINFO:
case PTRACE_GETSIGINFO:
return ptrace32_siginfo(request, pid, addr, data);
+
+ case PTRACE_SET_THREAD_AREA:
+ case PTRACE_GET_THREAD_AREA:
+ return sys_ptrace(request, pid,
+ addr + GDT_ENTRY_TLS_MIN - COMPAT_GDT_ENTRY_TLS_MIN,
+ data);
}
child = ptrace_get_task_struct(pid);