diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 249bcee4d7b238252269a921ed7df3c1cede7876..ac05bd86643a74ad6ae11e2d9ed78ef198cbe5ae 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -686,6 +686,9 @@ enum {
 /* Max physical block we can address w/o extents */
 #define EXT4_MAX_BLOCK_FILE_PHYS	0xFFFFFFFF
 
+/* Max logical block we can support */
+#define EXT4_MAX_LOGICAL_BLOCK		0xFFFFFFFF
+
 /*
  * Structure of an inode on the disk
  */
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 8f6ad766797403dac536d0743557898caae8256b..694f3136420625fb5e3b31623035e6b6112fa75a 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3412,12 +3412,16 @@ static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 {
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
 	unsigned int blkbits = inode->i_blkbits;
-	unsigned long first_block = offset >> blkbits;
-	unsigned long last_block = (offset + length - 1) >> blkbits;
+	unsigned long first_block, last_block;
 	struct ext4_map_blocks map;
 	bool delalloc = false;
 	int ret;
 
+	if ((offset >> blkbits) > EXT4_MAX_LOGICAL_BLOCK)
+		return -EINVAL;
+	first_block = offset >> blkbits;
+	last_block = min_t(loff_t, (offset + length - 1) >> blkbits,
+			   EXT4_MAX_LOGICAL_BLOCK);
 
 	if (flags & IOMAP_REPORT) {
 		if (ext4_has_inline_data(inode)) {