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) | |||
258 | 258 | ||
259 | /* Do sanity checks on the superblock */ | 259 | /* Do sanity checks on the superblock */ |
260 | if (super.magic != CRAMFS_MAGIC) { | 260 | if (super.magic != CRAMFS_MAGIC) { |
261 | /* check for wrong endianess */ | ||
262 | if (super.magic == CRAMFS_MAGIC_WEND) { | ||
263 | if (!silent) | ||
264 | printk(KERN_ERR "cramfs: wrong endianess\n"); | ||
265 | goto out; | ||
266 | } | ||
267 | |||
261 | /* check at 512 byte offset */ | 268 | /* check at 512 byte offset */ |
262 | mutex_lock(&read_mutex); | 269 | mutex_lock(&read_mutex); |
263 | memcpy(&super, cramfs_read(sb, 512, sizeof(super)), sizeof(super)); | 270 | memcpy(&super, cramfs_read(sb, 512, sizeof(super)), sizeof(super)); |
264 | mutex_unlock(&read_mutex); | 271 | mutex_unlock(&read_mutex); |
265 | if (super.magic != CRAMFS_MAGIC) { | 272 | if (super.magic != CRAMFS_MAGIC) { |
266 | if (!silent) | 273 | if (super.magic == CRAMFS_MAGIC_WEND && !silent) |
274 | printk(KERN_ERR "cramfs: wrong endianess\n"); | ||
275 | else if (!silent) | ||
267 | printk(KERN_ERR "cramfs: wrong magic\n"); | 276 | printk(KERN_ERR "cramfs: wrong magic\n"); |
268 | goto out; | 277 | goto out; |
269 | } | 278 | } |
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 @@ | |||
4 | #include <linux/types.h> | 4 | #include <linux/types.h> |
5 | 5 | ||
6 | #define CRAMFS_MAGIC 0x28cd3d45 /* some random number */ | 6 | #define CRAMFS_MAGIC 0x28cd3d45 /* some random number */ |
7 | #define CRAMFS_MAGIC_WEND 0x453dcd28 /* magic number with the wrong endianess */ | ||
7 | #define CRAMFS_SIGNATURE "Compressed ROMFS" | 8 | #define CRAMFS_SIGNATURE "Compressed ROMFS" |
8 | 9 | ||
9 | /* | 10 | /* |