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-rw-r--r--fs/hfsplus/brec.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/hfsplus/brec.c b/fs/hfsplus/brec.c
index 2312de34bd42..2a734cfccc92 100644
--- a/fs/hfsplus/brec.c
+++ b/fs/hfsplus/brec.c
@@ -43,6 +43,10 @@ u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec)
node->tree->node_size - (rec + 1) * 2);
if (!recoff)
return 0;
+ if (recoff > node->tree->node_size - 2) {
+ printk(KERN_ERR "hfs: recoff %d too large\n", recoff);
+ return 0;
+ }
retval = hfs_bnode_read_u16(node, recoff) + 2;
if (retval > node->tree->max_key_len + 2) {
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