diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/fpga/dfl-afu-main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl-afu-main.c index 3bf8e7338dbe..097a97eeea66 100644 --- a/drivers/fpga/dfl-afu-main.c +++ b/drivers/fpga/dfl-afu-main.c @@ -723,6 +723,9 @@ afu_ioctl_dma_map(struct dfl_feature_dev_data *fdata, void __user *arg) if (map.argsz < minsz || map.flags) return -EINVAL; + if (map.length >> PAGE_SHIFT > (u64)INT_MAX) + return -EINVAL; + ret = afu_dma_map_region(fdata, map.user_addr, map.length, &map.iova); if (ret) return ret; |