nilfs2-kmod7 1.2.16

• Backport fixes for a kernel bug that could occur when overwriting a block device on which nilfs2 is mounted, and for potential FS corruption when removing or renaming a directory failed with I/O errors:
  • fix potential kernel bug due to lack of writeback flag waiting
  • fix nilfs_empty_dir() misjudgment and long loop on I/O errors

nilfs2-kmod7 1.2.15

• Backport fixes for a few issues with the log writer, including potential use-after-free and hang issues on unmount, and potential sync operation freezes:
  • fix use-after-free of timer for log writer thread
  • fix unexpected freezing of nilfs_segctor_sync()
  • fix potential hang in nilfs_detach_log_writer()
• Backport fixes for potential issues with finishing block writes in rollforward recovery on mount:
  • make block erasure safe in nilfs_finish_roll_forward()
  • convert BUG_ON() in nilfs_finish_roll_forward() to WARN_ON()
• Backport a fix for one potential array out-of-bounds access issue around the directory code:
  • fix OOB in nilfs_set_de_type
• Backport one environment-dependent build warning fix:
  • fix out-of-range warning

nilfs2-kmod7 1.2.14

• Backport fixes for potential issues that could cause a buffer I/O routine to trigger a kernel bug due to writes to file systems whose DAT metadata is corrupted or unexpected write races:
  • fix failure to detect DAT corruption in btree and direct mappings
  • prevent kernel bug at submit_bh_wbc()

nilfs2-kmod7 1.2.13

• Backport fixes for a data corruption issue, mmap-related hangs and recovery failures, potential kernel panics, and a log writer freeze handling issue:
  • fix hang in nilfs_lookup_dirty_data_buffers()
  • fix data corruption in dsync block recovery for small block sizes
  • fix potential bug in end_buffer_async_write
  • add missing set_freezable() for freezable kthread
• Backport a patch that replaces potentially problematic state inconsistency checks with warning message output:
  • switch WARN_ONs to warning output in nilfs_sufile_do_free()

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()

nilfs2-kmod7 1.2.11

• Backport fixes for general protection fault and kernel warning issues reported by syzbot:
  • fix general protection fault in nilfs_lookup_dirty_data_buffers()
  • fix WARNING in mark_buffer_dirty due to discarded buffer reuse

nilfs2-kmod7 1.2.10

• Backport fixes for general protection faults on corrupted disk images and buffer corruption issues caused by concurrent device reads:
  • prevent general protection fault in nilfs_clear_dirty_page()
  • fix buffer corruption due to concurrent device reads

nilfs2-kmod7 1.2.9

• Backport recent fixes for various issues reported by syzbot:
  • fix use-after-free bug of nilfs_root in nilfs_evict_inode()
  • reject devices with insufficient block count
  • fix possible out-of-bounds segment allocation in resize ioctl
  • fix incomplete buffer cleanup in nilfs_btnode_abort_change_key()
• Add some new macro and inline function compatibility definitions for maintenance:
  • Allow to use U64_MAX and similar definitions
  • Allow to use bdev_nr_bytes() and sb_bdev_nr_blocks()

nilfs2-kmod7 1.2.8

• Backport fixes for kernel hangs with corrupted disk images and writes even after read-only degeneration:
  • do not write dirty data after degenerating to read-only
  • fix infinite loop in nilfs_mdt_get_block()

nilfs2-kmod7 1.2.7

• Backport another missing block initialization fix:
  • initialize unused bytes in segment summary blocks