diff options
Diffstat (limited to 'kernel/fs/nilfs2/the_nilfs.c')
| -rw-r--r-- | kernel/fs/nilfs2/the_nilfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/fs/nilfs2/the_nilfs.c b/kernel/fs/nilfs2/the_nilfs.c index 69bd801af..37e49cb2a 100644 --- a/kernel/fs/nilfs2/the_nilfs.c +++ b/kernel/fs/nilfs2/the_nilfs.c @@ -443,7 +443,7 @@ static int nilfs_valid_sb(struct nilfs_super_block *sbp) if (!sbp || le16_to_cpu(sbp->s_magic) != NILFS_SUPER_MAGIC) return 0; bytes = le16_to_cpu(sbp->s_bytes); - if (bytes > BLOCK_SIZE) + if (bytes < sumoff + 4 || bytes > BLOCK_SIZE) return 0; crc = crc32_le(le32_to_cpu(sbp->s_crc_seed), (unsigned char *)sbp, sumoff); |