Impacted also in 16.04 lts (kernel 4.4.0-134-generic ) with all
partitions in ext4 with flag meta_bg :

ext4_check_descriptors: block bitmap for group 0 overlaps block group
descriptors

the flag meta_bg activates automatically by warming up a partition above
60GB (with lvextend and resize2fs).

go back with the kernel 4.4.0-133-generic and all partitions mount
correctly.

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https://bugs.launchpad.net/bugs/1789131

Title:
  Probable regression with EXT3 file systems and CVE-2018-1093 patches

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