nilfs2-kmod8-1.25 Tue Feb 4, 2025 JST * backport fixes for the buffer head state inconsistency issues reported by syzbot that occur when the filesystem is corrupted and falls back to read-only, and the associated buffer head use-after-free issue: - nilfs2: do not force clear folio if buffer is referenced - nilfs2: protect access to buffers with no active references * backport fixes for BUG_ON check failures reported by syzbot around rename operations, and a behavioral issue where the mtime of a child directory changes when it is renamed instead of moved: - nilfs2: move page release outside of nilfs_delete_entry and nilfs_set_link - nilfs2: eliminate staggered calls to kunmap in nilfs_rename - nilfs2: handle errors that nilfs_prepare_chunk() may return - nilfs2: do not update mtime of renamed directory that is not moved * backport a fix for integer overflows in the fiemap ioctl that don't happen with normal FS formats, but can happen in special circumstances where the segment size is tuned to be extra large: - nilfs2: fix possible int overflows in nilfs_fiemap() nilfs2-kmod8-1.24 Mon Dec 23, 2024 JST * backport fixes for potential issues such as out-of-page memory access and link counter underflow that can occur on corrupted file systems: - nilfs2: prevent use of deleted inode - nilfs2: fix potential out-of-bounds memory access in nilfs_find_entry() nilfs2-kmod8-1.23 Thu Nov 14, 2024 JST * backport fixes for null pointer dereference bugs that occur when using nilfs2 and two block-related tracepoints: - nilfs2: fix null-ptr-deref in block_touch_buffer tracepoint - nilfs2: fix null-ptr-deref in block_dirty_buffer tracepoint nilfs2-kmod8-1.22 Mon Nov 4, 2024 JST * backport fixes for two kernel bug that could occur when file system corruption was detected and the mount mode was degraded to read-only: - nilfs2: fix kernel bug due to missing clearing of buffer delay flag - nilfs2: fix kernel bug due to missing clearing of checked flag * backport a fix for a potential deadlock issue: - nilfs2: fix potential deadlock with newly created symlinks nilfs2-kmod8-1.21 Sat Oct 19, 2024 JST * backport an upstream fix for a problem where a directory search could loop for a long time on a broken filesystem, which could result in a large amount of error logs being output in bursts: - nilfs2: propagate directory read errors from nilfs_find_entry() nilfs2-kmod8-1.20 Mon Sep 23, 2024 JST * backport upstream fixes that prevent internal code -ENOENT from propagating to system calls: - nilfs2: treat missing sufile header block as metadata corruption - nilfs2: treat missing cpfile header block as metadata corruption - nilfs2: do not propagate ENOENT error from sufile during recovery - nilfs2: do not propagate ENOENT error from sufile during GC - nilfs2: do not propagate ENOENT error from nilfs_sufile_mark_dirty() * backport upstream fixes for three potential issues with empty b-tree nodes that can occur with corrupted file system images, including one recently discovered by syzbot: - nilfs2: fix potential null-ptr-deref in nilfs_btree_insert() - nilfs2: determine empty node blocks as corrupted - nilfs2: fix potential oob read in nilfs_btree_check_delete() * backport a change to suppress nuisance kernel warnings that are output after detecting file system corruption and degrading to a read-only mount: - nilfs2: do not output warnings when clearing dirty buffers * backport a cleanup patch to remove code that is no longer needed by an existing fix: - nilfs2: do not repair reserved inode bitmap in nilfs_new_inode() nilfs2-kmod8-1.19 Thu Sep 5, 2024 JST * backport upstream bug fixes for issues such as memory access violations or invalid pointer dereferencing due to missing exclusive controls in the sysfs interface, a use-after-free bug in an error path of recovery during mount, and hangs and metadata block loss due to insufficient cleanup after log writer errors: - nilfs2: fix state management in error path of log writing function - nilfs2: fix missing cleanup on rollforward recovery error - nilfs2: protect references to superblock parameters exposed in sysfs * backport bug fixes for a kernel bug in b-tree node block creation that can occur when the disk address translation table is corrupted, and potential synchronization operation malfunctions due to an environment-dependent flaw in a sequence counter comparision macro: - nilfs2: handle inconsistent state in nilfs_btnode_create_block() - nilfs2: avoid undefined behavior in nilfs_cnt32_ge macro * backport a cleanup patch to resolve a conflict: - fs/nilfs2: remove some unused macros to tame gcc nilfs2-kmod8-1.18 Fri Jul 12, 2024 JST * backport a fix for a kernel bug that could occur when moving/renaming broken directories, and a commit that it depends on: - nilfs2: fix kernel bug on rename operation of broken directory - nilfs2: return the mapped address from nilfs_get_page() nilfs2-kmod8-1.17 Sat Jul 6, 2024 JST * backport a fix for use-after-free of metadata file inodes that could cause kernel bugs when directory entries were corrupted: - nilfs2: add missing check for inode numbers on directory entries * backport fixes for a couple of flaws that could cause problems if the starting number of non-reserved inodes was intentionally (or corruptly) changed from its default value: - nilfs2: fix inode number range checks - nilfs2: fix incorrect inode allocation from reserved inodes nilfs2-kmod8-1.16 Sat Jun 8, 2024 JST * 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: - nilfs2: fix potential kernel bug due to lack of writeback flag waiting - nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors * CentOS 8 stream EOL has been reflected in the README file: - README: remove CentOS 8 stream from supported distributions nilfs2-kmod8-1.15 Mon May 27, 2024 JST * 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: - nilfs2: fix use-after-free of timer for log writer thread - nilfs2: fix unexpected freezing of nilfs_segctor_sync() - nilfs2: fix potential hang in nilfs_detach_log_writer() * backport fixes for potential issues with finishing block writes in rollforward recovery on mount: - nilfs2: make block erasure safe in nilfs_finish_roll_forward() - nilfs2: 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: - nilfs2: fix OOB in nilfs_set_de_type * backport one environment-dependent build warning fix: - nilfs2: fix out-of-range warning nilfs2-kmod8-1.14 Sat Mar 16, 2024 JST * 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: - nilfs2: fix failure to detect DAT corruption in btree and direct mappings - nilfs2: prevent kernel bug at submit_bh_wbc() nilfs2-kmod8-1.13 Sun Feb 11, 2024 JST * backport fixes for a data corruption issue, mmap-related hangs and recovery failures, potential kernel panics, and a log writer freeze handling issue: - nilfs2: fix hang in nilfs_lookup_dirty_data_buffers() - nilfs2: fix data corruption in dsync block recovery for small block sizes - nilfs2: fix potential bug in end_buffer_async_write - nilfs2: add missing set_freezable() for freezable kthread * backport a patch that replaces potentially problematic state inconsistency checks with warning message output: - nilfs2: switch WARN_ONs to warning output in nilfs_sufile_do_free() nilfs2-kmod8-1.12 Sat Dec 9, 2023 JST * 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: - nilfs2: fix potential use after free in nilfs_gccache_submit_read_data() - nilfs2: fix missing error check for sb_set_blocksize call - nilfs2: prevent WARNING in nilfs_sufile_set_segment_usage() nilfs2-kmod8-1.11 Mon Sep 4, 2023 JST * backport fixes for user-after-free read, general protection fault, and kernel warning issues under abnormal conditions reported by syzbot: - nilfs2: fix use-after-free of nilfs_root in dirtying inodes via iput - nilfs2: fix general protection fault in nilfs_lookup_dirty_data_buffers() - nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse nilfs2-kmod8-1.10 Sat Jun 24, 2023 JST * backport fixes for general protection faults on corrupted disk images and buffer corruption issues caused by concurrent device reads: - nilfs2: prevent general protection fault in nilfs_clear_dirty_page() - nilfs2: fix buffer corruption due to concurrent device reads nilfs2-kmod8-1.9 Wed Jun 14, 2023 JST * backport recent fixes for various issues reported by syzbot: - nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() - nilfs2: reject devices with insufficient block count - nilfs2: fix possible out-of-bounds segment allocation in resize ioctl - nilfs2: 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 Sun May 7, 2023 JST * backport fixes for kernel hangs and writes even after read-only degeneration: - nilfs2: do not write dirty data after degenerating to read-only - nilfs2: fix infinite loop in nilfs_mdt_get_block() nilfs2-kmod8-1.7 Sun Apr 23, 2023 JST * backport another missing block initialization fix: - nilfs2: initialize unused bytes in segment summary blocks nilfs2-kmod8-1.6 Sun Apr 16, 2023 JST * backport fixes for a potential use-after-free read issue and missing segment summary data initialization: - nilfs2: initialize "struct nilfs_binfo_dat"->bi_pad field - nilfs2: 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: - nilfs2: fix sysfs interface lifetime nilfs2-kmod8-1.5 Mon Mar 27, 2023 JST * backport the fix for a potential kernel information leak when specifying anomalous ioctl parameters: - nilfs2: fix kernel-infoleak in nilfs_ioctl_wrap_copy() * backport improved anomaly checks for corrupted disk images: - nilfs2: prevent WARNING in nilfs_dat_commit_end() - nilfs2: replace WARN_ONs for invalid DAT metadata block requests nilfs2-kmod8-1.4 Sun Feb 19, 2023 JST * backport fixes for general protection faults on corrupted disk images, an out-of-bounds block access issue on empty or very small devices, bad segment counts and a writer thread hang issue after attempting to resize to very small sizes: - nilfs2: fix general protection fault in nilfs_btree_insert() - nilfs2: fix underflow in second superblock position calculations nilfs2-kmod8-1.3 Sun Dec 25, 2022 JST * backport the fixes for potential shift-out-of-bounds issues at mount time against corrupted disk images: - nilfs2: fix shift-out-of-bounds/overflow in nilfs_sb2_bad_offset() - nilfs2: fix shift-out-of-bounds due to too large exponent of block size nilfs2-kmod8-1.2 Mon Dec 5, 2022 JST * backport bug fixes: - nilfs2: fix nilfs_sufile_mark_dirty() not set segment usage as dirty - nilfs2: fix NULL pointer dereference in nilfs_palloc_commit_free_entry() nilfs2-kmod8-1.1 Sun Nov 20, 2022 JST * backport bug fixes: - nilfs2: fix deadlock in nilfs_count_free_blocks() - nilfs2: fix use-after-free bug of ns_writer on remount nilfs2-kmod8-1.0 Mon Oct 24, 2022 JST * Fix build issues with older RHEL 8 kernels: - Allow to use sysfs_emit() in old kernels (< 8.5) - Allow to add gfp argument to blkdev_issue_flush() for old kernels (< 8.6) - Add dummy error sector argument to blkdev_issue_flush() for old kernels (< 8.4) - Allow to use the fallthrough keyword in older kernels (< 8.4) - Revert "nilfs2: use default_groups in kobj_type" (< 8.3) - Avoid using unexported __inode_attach_wb() in older kernels (< 8.3) - nilfs2-kmod8: output an error when compiling against unsupported versions (= 8.0) * Makefile updates: - nilfs2-kmod8: pass RHEL release number to preprocessor - Include header files in local include/uapi directory - Use KBUILD_EXTMOD instead of SUBDIRS in fs/nilfs2/Makefile - Use KBUILD_CFLAGS and LINUXINCLUDE instead of EXTRA_CFLAGS nilfs2-kmod8-0.2 Sun Oct 16, 2022 JST * backport bug fixes: - nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure - nilfs2: fix use-after-free bug of struct nilfs_root - nilfs2: fix NULL pointer dereference at nilfs_bmap_lookup_at_level() - nilfs2: fix leak of nilfs_root in case of writer thread creation failure nilfs2-kmod8-0.1 Wed Oct 12, 2022 JST * backport RHEL 8 changes: - block: use an on-stack bio in blkdev_issue_flush - block: remove the error_sector argument to blkdev_issue_flush - fs/nilfs2/file.c: use new return type vm_fault_t - nilfs2: Convert to XArray - nilfs2: Use xa_erase_irq - XArray: Change xa_insert to return -EBUSY - treewide: Use fallthrough pseudo-keyword - Allow to backport vfs_ioc_setflags_prepare() - Allow to backport the new readahead aop * backport bug fixes: - nilfs2: use 64-bit superblock timstamps - nilfs2: fix null pointer dereference at nilfs_segctor_do_construct() - nilfs2: only call unlock_new_inode() if I_NEW - nilfs2: fix memory leak in nilfs_sysfs_delete_device_group - nilfs2: fix memory leak in nilfs_sysfs_create_device_group - nilfs2: fix NULL pointer in nilfs_##name##_attr_release - nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group - nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group - nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group - nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group - nilfs2: use refcount_dec_and_lock() to fix potential UAF - nilfs2: fix lockdep warnings in page operations for btree nodes - nilfs2: fix lockdep warnings during disk space reclamation - nilfs2: get rid of nilfs_mapping_init() - nilfs2: fix incorrect masking of permission flags for symlinks - nilfs2: fix use-after-free bug in nilfs_mdt_destroy() * backport documentation fixes: - nilfs2: fix some kernel-doc warnings for nilfs2 - fs/nilfs2: fix misspellings using codespell tool - nilfs2: fix typos in comments * backport other changes: - nilfs2: convert to SPDX license tags - nilfs2: replace snprintf in show functions with sysfs_emit - nilfs2: remove filenames from file comments - nilfs2: use default_groups in kobj_type - nilfs2: convert __nilfs_msg to integrate the level and format - nilfs2: use a more common logging style * add ChangeLog file * add README file * add kern_feature.h header file * add .gitignore file * Import source files from stable kernel-4.18.y.