diff options
Diffstat (limited to 'kernel/rseq.c')
| -rw-r--r-- | kernel/rseq.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/kernel/rseq.c b/kernel/rseq.c index 0077713bf240..6ca29dddceab 100644 --- a/kernel/rseq.c +++ b/kernel/rseq.c @@ -120,8 +120,13 @@ static int rseq_get_rseq_cs(struct task_struct *t, struct rseq_cs *rseq_cs) u32 sig; int ret; - if (copy_from_user(&ptr, &t->rseq->rseq_cs.ptr64, sizeof(ptr))) +#ifdef CONFIG_64BIT + if (get_user(ptr, &t->rseq->rseq_cs)) return -EFAULT; +#else + if (copy_from_user(&ptr, &t->rseq->rseq_cs, sizeof(ptr))) + return -EFAULT; +#endif if (!ptr) { memset(rseq_cs, 0, sizeof(*rseq_cs)); return 0; @@ -204,9 +209,13 @@ static int clear_rseq_cs(struct task_struct *t) * * Set rseq_cs to NULL. */ - if (clear_user(&t->rseq->rseq_cs.ptr64, sizeof(t->rseq->rseq_cs.ptr64))) +#ifdef CONFIG_64BIT + return put_user(0UL, &t->rseq->rseq_cs); +#else + if (clear_user(&t->rseq->rseq_cs, sizeof(t->rseq->rseq_cs))) return -EFAULT; return 0; +#endif } /* |