diff options
Diffstat (limited to 'fs/squashfs/sqfs_inode.c')
| -rw-r--r-- | fs/squashfs/sqfs_inode.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/squashfs/sqfs_inode.c b/fs/squashfs/sqfs_inode.c index b037a9b2ac..1387779a85 100644 --- a/fs/squashfs/sqfs_inode.c +++ b/fs/squashfs/sqfs_inode.c @@ -138,11 +138,14 @@ void *sqfs_find_inode(void *inode_table, int inode_number, __le32 inode_count, int sqfs_read_metablock(unsigned char *file_mapping, int offset, bool *compressed, u32 *data_size) { - unsigned char *data; + const unsigned char *data; u16 header; data = file_mapping + offset; header = get_unaligned((u16 *)data); + if (!header || !data) + return -EINVAL; + *compressed = SQFS_COMPRESSED_METADATA(header); *data_size = SQFS_METADATA_SIZE(header); |