btrfs: tree-checker: Enhance chunk checker to validate chunk profile

Btrfs-progs already have a comprehensive type checker, to ensure there
is only 0 (SINGLE profile) or 1 (DUP/RAID0/1/5/6/10) bit set for chunk
profile bits.

Do the same work for kernel.

Reported-by: Yoon Jungyeon <jungyeon@gatech.edu>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=202765
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index 00ab4e783b9f..d7f4a3468945 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -556,6 +556,13 @@ int btrfs_check_chunk_valid(struct btrfs_fs_info *fs_info,
                 return -EUCLEAN;
         }
 
+        if (!is_power_of_2(type & BTRFS_BLOCK_GROUP_PROFILE_MASK) &&
+            (type & BTRFS_BLOCK_GROUP_PROFILE_MASK) != 0) {
+                chunk_err(fs_info, leaf, chunk, logical,
+                "invalid chunk profile flag: 0x%llx, expect 0 or 1 bit set",
+                          type & BTRFS_BLOCK_GROUP_PROFILE_MASK);
+                return -EUCLEAN;
+        }
         if ((type & BTRFS_BLOCK_GROUP_TYPE_MASK) == 0) {
                 chunk_err(fs_info, leaf, chunk, logical,
         "missing chunk type flag, have 0x%llx one bit must be set in 0x%llx",