nilfs2-kmod7 1.2.12
- Backport fixes for a potential use-after-free issue, problems including memory access violations due to lack of block size error handling, and a bug reported by syzbot:
- fix potential use after free in nilfs_gccache_submit_read_data()
- fix missing error check for sb_set_blocksize call
- prevent WARNING in nilfs_sufile_set_segment_usage()