nilfs2-kmod8 1.14

• 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-kmod8 1.13

• 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-kmod8 1.12

• 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-kmod8 1.11

• Backport fixes for user-after-free read, general protection fault, and kernel warning issues under abnormal conditions reported by syzbot:
  • fix use-after-free of nilfs_root in dirtying inodes via iput
  • fix general protection fault in nilfs_lookup_dirty_data_buffers()
  • fix WARNING in mark_buffer_dirty due to discarded buffer reuse

nilfs2-kmod8 1.10

• 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-kmod8 1.9

• 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 inline function compatibility definitions for maintenance:
  • Allow to use bdev_nr_bytes() and sb_bdev_nr_blocks()

nilfs2-kmod8 1.8

• 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-kmod8 1.7

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

nilfs2-kmod8 1.6

• Backport fixes for a potential use-after-free read issue and missing segment summary data initialization:
  • initialize "struct nilfs_binfo_dat"->bi_pad field
  • fix potential UAF of struct nilfs_sc_info in nilfs_segctor_thread()
• Backport the fix for potential null pointer dereferences, use-after-free, and lockdep warnings caused by improper sysfs interface lifetime:
  • fix sysfs interface lifetime

nilfs2-kmod8 1.5

• Backport the fix for a potential kernel information leak when specifying anomalous ioctl parameters:
  • fix kernel-infoleak in nilfs_ioctl_wrap_copy()
• Backport improved anomaly checks for corrupted disk images:
  • prevent WARNING in nilfs_dat_commit_end()
  • replace WARN_ONs for invalid DAT metadata block requests