diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/futex.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h index 5e97a4353147..ed965c3ecd5b 100644 --- a/arch/s390/include/asm/futex.h +++ b/arch/s390/include/asm/futex.h @@ -28,8 +28,9 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, int oldval = 0, newval, ret; mm_segment_t old_fs; + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; old_fs = enable_sacf_uaccess(); - pagefault_disable(); switch (op) { case FUTEX_OP_SET: __futex_atomic_op("lr %2,%5\n", @@ -54,7 +55,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, default: ret = -ENOSYS; } - pagefault_enable(); disable_sacf_uaccess(old_fs); if (!ret) |