VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Bob Copeland <me@bobcopeland.com> 2010-07-06 11:16:46 -0400 committer: Bob Copeland <me@bobcopeland.com> 2010-07-10 14:38:11 -0400 commit: 8800a044c71a128633cf3febaf4780531a991334 parent: 9442e54f433eff9b6fbd0836611df4c1919df370
Commit Summary:
omfs: sanity check cluster size
Diffstat:
1 file changed, 6 insertions, 0 deletions
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index 0af5d0af9f32..579d33fedddd 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -517,6 +517,12 @@ static int omfs_fill_super(struct super_block *sb, void *data, int silent)
 			(unsigned long long) sbi->s_num_blocks);
 		goto out_brelse_bh2;
 	}
+	if (sbi->s_clustersize < 1 ||
+	    sbi->s_clustersize > OMFS_MAX_CLUSTER_SIZE) {
+		printk(KERN_ERR "omfs: cluster size out of range (%d)",
+			sbi->s_clustersize);
+		goto out_brelse_bh2;
+	}
 
 	ret = omfs_get_imap(sb);
 	if (ret)