Commit 9c03f162 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge ssh://master.kernel.org/home/hpa/tree/sec 

* ssh://master.kernel.org/home/hpa/tree/sec:
  x86-64, compat: Retruncate rax after ia32 syscall entry tracing
  x86-64, compat: Test %rax for the syscall number, not %eax
  compat: Make compat_alloc_user_space() incorporate the access_ok()
parents a4128b03 eefdca04

arch/ia64/include/asm/compat.h

+1 −1
Original line number Diff line number Diff line
@@ -199,7 +199,7 @@ ptr_to_compat(void __user *uptr) 
}



static __inline__ void __user *

compat_alloc_user_space (long len)

arch_compat_alloc_user_space (long len)

{

	struct pt_regs *regs = task_pt_regs(current);

	return (void __user *) (((regs->r12 & 0xffffffff) & -16) - len);

arch/mips/include/asm/compat.h

+1 −1
Original line number Diff line number Diff line
@@ -145,7 +145,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr) 
	return (u32)(unsigned long)uptr;

}



static inline void __user *compat_alloc_user_space(long len)

static inline void __user *arch_compat_alloc_user_space(long len)

{

	struct pt_regs *regs = (struct pt_regs *)

		((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;

arch/parisc/include/asm/compat.h

+1 −1
Original line number Diff line number Diff line
@@ -147,7 +147,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr) 
	return (u32)(unsigned long)uptr;

}



static __inline__ void __user *compat_alloc_user_space(long len)

static __inline__ void __user *arch_compat_alloc_user_space(long len)

{

	struct pt_regs *regs = &current->thread.regs;

	return (void __user *)regs->gr[30];

arch/powerpc/include/asm/compat.h

+1 −1
Original line number Diff line number Diff line
@@ -134,7 +134,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr) 
	return (u32)(unsigned long)uptr;

}



static inline void __user *compat_alloc_user_space(long len)

static inline void __user *arch_compat_alloc_user_space(long len)

{

	struct pt_regs *regs = current->thread.regs;

	unsigned long usp = regs->gpr[1];

arch/s390/include/asm/compat.h

+1 −1
Original line number Diff line number Diff line
@@ -181,7 +181,7 @@ static inline int is_compat_task(void) 


#endif



static inline void __user *compat_alloc_user_space(long len)

static inline void __user *arch_compat_alloc_user_space(long len)

{

	unsigned long stack;

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