diff options
| -rw-r--r-- | kernel/events/uprobes.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index bf2a87a0a378..af53fbd2d12c 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -495,6 +495,11 @@ retry: if (ret <= 0) goto put_old; + if (is_zero_page(old_page)) { + ret = -EINVAL; + goto put_old; + } + if (WARN(!is_register && PageCompound(old_page), "uprobe unregister should never work on compound page\n")) { ret = -EINVAL; |