diff options
Diffstat (limited to 'fs/ntfs3/record.c')
| -rw-r--r-- | fs/ntfs3/record.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/ntfs3/record.c b/fs/ntfs3/record.c index 7d2fac5ee215..defce6a5c8e1 100644 --- a/fs/ntfs3/record.c +++ b/fs/ntfs3/record.c @@ -220,6 +220,11 @@ struct ATTRIB *mi_enum_attr(struct mft_inode *mi, struct ATTRIB *attr) return NULL; } + if (off + asize < off) { + /* overflow check */ + return NULL; + } + attr = Add2Ptr(attr, asize); off += asize; } @@ -260,6 +265,10 @@ struct ATTRIB *mi_enum_attr(struct mft_inode *mi, struct ATTRIB *attr) if (t16 + t32 > asize) return NULL; + t32 = sizeof(short) * attr->name_len; + if (t32 && le16_to_cpu(attr->name_off) + t32 > t16) + return NULL; + return attr; } @@ -537,6 +546,10 @@ bool mi_resize_attr(struct mft_inode *mi, struct ATTRIB *attr, int bytes) return true; } +/* + * Pack runs in MFT record. + * If failed record is not changed. + */ int mi_pack_runs(struct mft_inode *mi, struct ATTRIB *attr, struct runs_tree *run, CLST len) { |