From fb4325a3d9f983160f142b919880ccbe2304bc25 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Date: Tue, 25 Nov 2014 16:41:26 +0200 Subject: [PATCH] UBIFS: add a couple of extra asserts ... to catch possible memory corruptions. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> --- fs/ubifs/debug.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c index 7ed13e1e216a8..4cfb3e82c56f2 100644 --- a/fs/ubifs/debug.c +++ b/fs/ubifs/debug.c @@ -2032,6 +2032,8 @@ static int check_leaf(struct ubifs_info *c, struct ubifs_zbranch *zbr, long long blk_offs; struct ubifs_data_node *dn = node; + ubifs_assert(zbr->len >= UBIFS_DATA_NODE_SZ); + /* * Search the inode node this data node belongs to and insert * it to the RB-tree of inodes. @@ -2060,6 +2062,8 @@ static int check_leaf(struct ubifs_info *c, struct ubifs_zbranch *zbr, struct ubifs_dent_node *dent = node; struct fsck_inode *fscki1; + ubifs_assert(zbr->len >= UBIFS_DENT_NODE_SZ); + err = ubifs_validate_entry(c, dent); if (err) goto out_dump;