diff options
Diffstat (limited to 'fs/nilfs2/sufile.c')
| -rw-r--r-- | fs/nilfs2/sufile.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c index 84e384dae663..2a869c35c362 100644 --- a/fs/nilfs2/sufile.c +++ b/fs/nilfs2/sufile.c @@ -1169,6 +1169,18 @@ int nilfs_sufile_read(struct super_block *sb, size_t susize, void *kaddr; int err; + if (susize > sb->s_blocksize) { + printk(KERN_ERR + "NILFS: too large segment usage size: %zu bytes.\n", + susize); + return -EINVAL; + } else if (susize < NILFS_MIN_SEGMENT_USAGE_SIZE) { + printk(KERN_ERR + "NILFS: too small segment usage size: %zu bytes.\n", + susize); + return -EINVAL; + } + sufile = nilfs_iget_locked(sb, NULL, NILFS_SUFILE_INO); if (unlikely(!sufile)) return -ENOMEM; |