diff options
Diffstat (limited to 'kernel/events')
| -rw-r--r-- | kernel/events/ring_buffer.c | 3 | ||||
| -rw-r--r-- | kernel/events/uprobes.c | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c index 58013ef228a1..358bb53c1e74 100644 --- a/kernel/events/ring_buffer.c +++ b/kernel/events/ring_buffer.c @@ -637,6 +637,9 @@ struct ring_buffer *rb_alloc(int nr_pages, long watermark, int cpu, int flags) size = sizeof(struct ring_buffer); size += nr_pages * sizeof(void *); + if (order_base_2(size) >= PAGE_SHIFT+MAX_ORDER) + goto fail; + rb = kzalloc(size, GFP_KERNEL); if (!rb) goto fail; diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index 7108097fa2f2..aad43c88a668 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -299,7 +299,7 @@ int uprobe_write_opcode(struct mm_struct *mm, unsigned long vaddr, retry: /* Read the page with vaddr into memory */ - ret = get_user_pages(NULL, mm, vaddr, 1, 0, 1, &old_page, &vma); + ret = get_user_pages(NULL, mm, vaddr, 1, FOLL_FORCE, &old_page, &vma); if (ret <= 0) return ret; @@ -1700,7 +1700,7 @@ static int is_trap_at_addr(struct mm_struct *mm, unsigned long vaddr) if (likely(result == 0)) goto out; - result = get_user_pages(NULL, mm, vaddr, 1, 0, 1, &page, NULL); + result = get_user_pages(NULL, mm, vaddr, 1, FOLL_FORCE, &page, NULL); if (result < 0) return result; |