diff options
| -rw-r--r-- | fs/exfat/dir.c | 8 | ||||
| -rw-r--r-- | fs/exfat/super.c | 2 |
2 files changed, 6 insertions, 4 deletions
diff --git a/fs/exfat/dir.c b/fs/exfat/dir.c index c4523648472a..cb1c0d8c1714 100644 --- a/fs/exfat/dir.c +++ b/fs/exfat/dir.c @@ -63,7 +63,7 @@ static void exfat_get_uniname_from_ext_entry(struct super_block *sb, static int exfat_readdir(struct inode *inode, loff_t *cpos, struct exfat_dir_entry *dir_entry) { int i, dentries_per_clu, dentries_per_clu_bits = 0, num_ext; - unsigned int type, clu_offset; + unsigned int type, clu_offset, max_dentries; sector_t sector; struct exfat_chain dir, clu; struct exfat_uni_name uni_name; @@ -86,6 +86,8 @@ static int exfat_readdir(struct inode *inode, loff_t *cpos, struct exfat_dir_ent dentries_per_clu = sbi->dentries_per_clu; dentries_per_clu_bits = ilog2(dentries_per_clu); + max_dentries = (unsigned int)min_t(u64, MAX_EXFAT_DENTRIES, + (u64)sbi->num_clusters << dentries_per_clu_bits); clu_offset = dentry >> dentries_per_clu_bits; exfat_chain_dup(&clu, &dir); @@ -109,7 +111,7 @@ static int exfat_readdir(struct inode *inode, loff_t *cpos, struct exfat_dir_ent } } - while (clu.dir != EXFAT_EOF_CLUSTER) { + while (clu.dir != EXFAT_EOF_CLUSTER && dentry < max_dentries) { i = dentry & (dentries_per_clu - 1); for ( ; i < dentries_per_clu; i++, dentry++) { @@ -245,7 +247,7 @@ static int exfat_iterate(struct file *filp, struct dir_context *ctx) if (err) goto unlock; get_new: - if (cpos >= i_size_read(inode)) + if (ei->flags == ALLOC_NO_FAT_CHAIN && cpos >= i_size_read(inode)) goto end_of_dir; err = exfat_readdir(inode, &cpos, &de); diff --git a/fs/exfat/super.c b/fs/exfat/super.c index d38d17a77e76..5539ffc20d16 100644 --- a/fs/exfat/super.c +++ b/fs/exfat/super.c @@ -690,7 +690,7 @@ static int exfat_fill_super(struct super_block *sb, struct fs_context *fc) if (!sb->s_root) { exfat_err(sb, "failed to get the root dentry"); err = -ENOMEM; - goto put_inode; + goto free_table; } return 0; |