diff options
| -rw-r--r-- | fs/cramfs/inode.c | 11 | ||||
| -rw-r--r-- | include/linux/cramfs_fs.h | 1 |
2 files changed, 11 insertions, 1 deletions
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 3d194a2be3f5..5c817bd08389 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -258,12 +258,21 @@ static int cramfs_fill_super(struct super_block *sb, void *data, int silent) /* Do sanity checks on the superblock */ if (super.magic != CRAMFS_MAGIC) { + /* check for wrong endianess */ + if (super.magic == CRAMFS_MAGIC_WEND) { + if (!silent) + printk(KERN_ERR "cramfs: wrong endianess\n"); + goto out; + } + /* check at 512 byte offset */ mutex_lock(&read_mutex); memcpy(&super, cramfs_read(sb, 512, sizeof(super)), sizeof(super)); mutex_unlock(&read_mutex); if (super.magic != CRAMFS_MAGIC) { - if (!silent) + if (super.magic == CRAMFS_MAGIC_WEND && !silent) + printk(KERN_ERR "cramfs: wrong endianess\n"); + else if (!silent) printk(KERN_ERR "cramfs: wrong magic\n"); goto out; } diff --git a/include/linux/cramfs_fs.h b/include/linux/cramfs_fs.h index 1dba681e428d..3be4e5a27d82 100644 --- a/include/linux/cramfs_fs.h +++ b/include/linux/cramfs_fs.h @@ -4,6 +4,7 @@ #include <linux/types.h> #define CRAMFS_MAGIC 0x28cd3d45 /* some random number */ +#define CRAMFS_MAGIC_WEND 0x453dcd28 /* magic number with the wrong endianess */ #define CRAMFS_SIGNATURE "Compressed ROMFS" /* |