diff options
| -rw-r--r-- | fs/dlm/user.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/dlm/user.c b/fs/dlm/user.c index eb4ed9ba309..7ff49852b0c 100644 --- a/fs/dlm/user.c +++ b/fs/dlm/user.c @@ -503,6 +503,13 @@ static ssize_t device_write(struct file *file, const char __user *buf, #endif return -EINVAL; +#ifdef CONFIG_COMPAT + if (count > sizeof(struct dlm_write_request32) + DLM_RESNAME_MAXLEN) +#else + if (count > sizeof(struct dlm_write_request) + DLM_RESNAME_MAXLEN) +#endif + return -EINVAL; + kbuf = kzalloc(count + 1, GFP_NOFS); if (!kbuf) return -ENOMEM; |