diff options
| -rw-r--r-- | fs/jfs/jfs_dtree.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c index 5d3127ca68a4..69fd936fbdb3 100644 --- a/fs/jfs/jfs_dtree.c +++ b/fs/jfs/jfs_dtree.c @@ -3086,6 +3086,13 @@ static int dtReadFirst(struct inode *ip, struct btstack * btstack) /* get the leftmost entry */ stbl = DT_GETSTBL(p); + + if (stbl[0] < 0 || stbl[0] > 127) { + DT_PUTPAGE(mp); + jfs_error(ip->i_sb, "stbl[0] out of bound\n"); + return -EIO; + } + xd = (pxd_t *) & p->slot[stbl[0]]; /* get the child page block address */ |