diff options
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 6531f07d6ca7..e9c84c5800ed 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3984,6 +3984,16 @@ static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info) btrfs_err(fs_info, "no valid FS found"); ret = -EINVAL; } + + /* + * For write time check, as for mount time we have checked csum before + * calling btrfs_check_super_valid(), so it must be a corruption + */ + if (btrfs_super_csum_type(sb) >= ARRAY_SIZE(btrfs_csum_sizes)) { + btrfs_err(fs_info, "corrupted csum type %u", + btrfs_super_csum_type(sb)); + ret = -EINVAL; + } if (btrfs_super_flags(sb) & ~BTRFS_SUPER_FLAG_SUPP) { btrfs_err(fs_info, "unrecognized or unsupported super flag: %llu", btrfs_super_flags(sb) & ~BTRFS_SUPER_FLAG_SUPP); |