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yaml
---
r: 211589
b: refs/heads/master
c: 13571a6
h: refs/heads/master
i:
  211587: 8933be2
v: v3
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Christoph Hellwig authored and Christoph Hellwig committed Oct 14, 2010
1 parent d6a22fa commit bf70fcb
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Showing 3 changed files with 21 additions and 15 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 9250f925972d03ccc0c0a4dd4e9b794d2ef6d52b
refs/heads/master: 13571a6977f821fab7d9c3cc5f75da52b7732e40
20 changes: 6 additions & 14 deletions trunk/fs/hfsplus/brec.c
Original file line number Diff line number Diff line change
Expand Up @@ -42,20 +42,12 @@ u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec)
recoff = hfs_bnode_read_u16(node, node->tree->node_size - (rec + 1) * 2);
if (!recoff)
return 0;
if (node->tree->attributes & HFS_TREE_BIGKEYS) {
retval = hfs_bnode_read_u16(node, recoff) + 2;
if (retval > node->tree->max_key_len + 2) {
printk(KERN_ERR "hfs: keylen %d too large\n",
retval);
retval = 0;
}
} else {
retval = (hfs_bnode_read_u8(node, recoff) | 1) + 1;
if (retval > node->tree->max_key_len + 1) {
printk(KERN_ERR "hfs: keylen %d too large\n",
retval);
retval = 0;
}

retval = hfs_bnode_read_u16(node, recoff) + 2;
if (retval > node->tree->max_key_len + 2) {
printk(KERN_ERR "hfs: keylen %d too large\n",
retval);
retval = 0;
}
}
return retval;
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14 changes: 14 additions & 0 deletions trunk/fs/hfsplus/btree.c
Original file line number Diff line number Diff line change
Expand Up @@ -71,6 +71,11 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
tree->max_key_len);
goto fail_page;
}
if (tree->attributes & HFS_TREE_VARIDXKEYS) {
printk(KERN_ERR "hfs: invalid extent btree flag\n");
goto fail_page;
}

tree->keycmp = hfsplus_ext_cmp_key;
break;
case HFSPLUS_CAT_CNID:
Expand All @@ -79,6 +84,10 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
tree->max_key_len);
goto fail_page;
}
if (!(tree->attributes & HFS_TREE_VARIDXKEYS)) {
printk(KERN_ERR "hfs: invalid catalog btree flag\n");
goto fail_page;
}

if (test_bit(HFSPLUS_SB_HFSX, &HFSPLUS_SB(sb)->flags) &&
(head->key_type == HFSPLUS_KEY_BINARY))
Expand All @@ -93,6 +102,11 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
goto fail_page;
}

if (!(tree->attributes & HFS_TREE_BIGKEYS)) {
printk(KERN_ERR "hfs: invalid btree flag\n");
goto fail_page;
}

size = tree->node_size;
if (!is_power_of_2(size))
goto fail_page;
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