Darrick J. Wong 5f204051d9 xfs: pin inodes that would otherwise overflow link count ... The VFS inc_nlink function does not explicitly check for integer overflows in the i_nlink field. Instead, it checks the link count against s_max_links in the vfs_{link,create,rename} functions. XFS sets the maximum link count to 2.1 billion, so integer overflows should not be a problem. However. It's possible that online repair could find that a file has more than four billion links, particularly if the link count got corrupted while creating hardlinks to the file. The di_nlinkv2 field is not large enough to store a value larger than 2^32, so we ought to define a magic pin value of ~0U which means that the inode never gets deleted. This will prevent a UAF error if the repair finds this situation and users begin deleting links to the file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>		2024-04-15 14:58:59 -07:00
..
libxfs	xfs: pin inodes that would otherwise overflow link count	2024-04-15 14:58:59 -07:00
scrub	xfs: pin inodes that would otherwise overflow link count	2024-04-15 14:58:59 -07:00
Kconfig	xfs: support in-memory btrees	2024-02-22 12:43:35 -08:00
Makefile	xfs: online repair of symbolic links	2024-04-15 14:58:58 -07:00
xfs_acl.c	xfs: convert kmem_free() for kvmalloc users to kvfree()	2024-02-13 18:07:34 +05:30
xfs_acl.h
xfs_aops.c	xfs: don't use current->journal_info	2024-03-25 10:21:01 +05:30
xfs_aops.h
xfs_attr_inactive.c	xfs: report dir/attr block corruption errors to the health system	2024-02-22 12:32:18 -08:00
xfs_attr_item.c	xfs: add an explicit owner field to xfs_da_args	2024-04-15 14:58:50 -07:00
xfs_attr_item.h
xfs_attr_list.c	xfs: validate dabtree node buffer owners	2024-04-15 14:58:51 -07:00
xfs_bio_io.c
xfs_bmap_item.c	xfs: support recovering bmap intent items targetting realtime extents	2024-02-22 12:44:24 -08:00
xfs_bmap_item.h	xfs: move xfs_bmap_defer_add to xfs_bmap_item.c	2024-02-22 12:44:21 -08:00
xfs_bmap_util.c	xfs: hoist multi-fsb allocation unit detection to a helper	2024-04-15 14:54:11 -07:00
xfs_bmap_util.h	xfs: indicate if xfs_bmap_adjacent changed ap->blkno	2023-12-22 11:18:11 +05:30
xfs_buf_item_recover.c	xfs: convert remaining kmem_free() to kfree()	2024-02-13 18:07:34 +05:30
xfs_buf_item.c	xfs: convert remaining kmem_free() to kfree()	2024-02-13 18:07:34 +05:30
xfs_buf_item.h
xfs_buf_mem.c	xfs: fix dev_t usage in xmbuf tracepoints	2024-03-15 10:30:23 +05:30
xfs_buf_mem.h	xfs: launder in-memory btree buffers before transaction commit	2024-02-22 12:43:36 -08:00
xfs_buf.c	xfs: repair extended attributes	2024-04-15 14:58:53 -07:00
xfs_buf.h	New code for 6.9:	2024-03-13 13:52:24 -07:00
xfs_dahash_test.c
xfs_dahash_test.h
xfs_dir2_readdir.c	xfs: validate explicit directory block buffer owners	2024-04-15 14:58:52 -07:00
xfs_discard.c	xfs: split xfs_allocbt_init_cursor	2024-02-22 12:40:12 -08:00
xfs_discard.h	xfs: move log discard work to xfs_discard.c	2023-10-04 09:24:02 +11:00
xfs_dquot_item_recover.c	xfs: dquot recovery does not validate the recovered dquot	2023-11-22 23:39:36 +05:30
xfs_dquot_item.c
xfs_dquot_item.h
xfs_dquot.c	xfs: quota radix tree allocations need to be NOFS on insert	2024-03-15 10:30:23 +05:30
xfs_dquot.h	xfs: repair quotas	2023-12-15 10:03:45 -08:00
xfs_drain.c
xfs_drain.h
xfs_error.c	xfs: add error injection to test file mapping exchange recovery	2024-04-15 14:54:19 -07:00
xfs_error.h
xfs_exchmaps_item.c	xfs: capture inode generation numbers in the ondisk exchmaps log item	2024-04-15 14:54:24 -07:00
xfs_exchmaps_item.h	xfs: create deferred log items for file mapping exchanges	2024-04-15 14:54:17 -07:00
xfs_exchrange.c	xfs: support non-power-of-two rtextsize with exchange-range	2024-04-15 14:54:23 -07:00
xfs_exchrange.h	xfs: create deferred log items for file mapping exchanges	2024-04-15 14:54:17 -07:00
xfs_export.c	xfs: hide private inodes from bulkstat and handle functions	2024-04-15 14:58:48 -07:00
xfs_export.h
xfs_extent_busy.c	xfs: convert remaining kmem_free() to kfree()	2024-02-13 18:07:34 +05:30
xfs_extent_busy.h	xfs: repair free space btrees	2023-12-15 10:03:32 -08:00
xfs_extfree_item.c	xfs: convert remaining kmem_free() to kfree()	2024-02-13 18:07:34 +05:30
xfs_extfree_item.h
xfs_file.c	xfs: refactor non-power-of-two alignment checks	2024-04-15 14:54:12 -07:00
xfs_file.h	xfs: create a new helper to return a file's allocation unit	2024-04-15 14:54:10 -07:00
xfs_filestream.c	xfs: convert remaining kmem_free() to kfree()	2024-02-13 18:07:34 +05:30
xfs_filestream.h
xfs_fsmap.c	xfs: split xfs_allocbt_init_cursor	2024-02-22 12:40:12 -08:00
xfs_fsmap.h
xfs_fsops.c	New code for 6.8:	2024-01-10 08:45:22 -08:00
xfs_fsops.h	xfs: clean up xfs_fsops.h	2023-12-07 14:51:07 +05:30
xfs_globals.c	xfs: add debug knobs to control btree bulk load slack factors	2023-12-15 10:03:28 -08:00
xfs_health.c	xfs: support in-memory btrees	2024-02-22 12:43:35 -08:00
xfs_hooks.c	xfs: allow scrub to hook metadata updates in other writers	2024-02-22 12:30:45 -08:00
xfs_hooks.h	xfs: allow scrub to hook metadata updates in other writers	2024-02-22 12:30:45 -08:00
xfs_icache.c	xfs: don't use current->journal_info	2024-03-25 10:21:01 +05:30
xfs_icache.h	xfs: use per-mount cpumask to track nonempty percpu inodegc lists	2023-09-11 08:39:03 -07:00
xfs_icreate_item.c	xfs: convert kmem_free() for kvmalloc users to kvfree()	2024-02-13 18:07:34 +05:30
xfs_icreate_item.h
xfs_inode_item_recover.c	xfs: convert remaining kmem_free() to kfree()	2024-02-13 18:07:34 +05:30
xfs_inode_item.c	xfs: Replace xfs_isilocked with xfs_assert_ilocked	2024-02-19 21:19:33 +05:30
xfs_inode_item.h	xfs: fix AGF vs inode cluster buffer deadlock	2023-06-05 04:08:27 +10:00
xfs_inode.c	xfs: pin inodes that would otherwise overflow link count	2024-04-15 14:58:59 -07:00
xfs_inode.h	xfs: check AGI unlinked inode buckets	2024-04-15 14:58:58 -07:00
xfs_ioctl32.c
xfs_ioctl32.h	arch: Remove Itanium (IA-64) architecture	2023-09-11 08:13:17 +00:00
xfs_ioctl.c	xfs: introduce new file range exchange ioctl	2024-04-15 14:54:14 -07:00
xfs_ioctl.h
xfs_iomap.c	xfs: report block map corruption errors to the health tracking system	2024-02-22 12:31:51 -08:00
xfs_iomap.h
xfs_iops.c	xfs: hide private inodes from bulkstat and handle functions	2024-04-15 14:58:48 -07:00
xfs_iops.h	xfs: declare xfs_file.c symbols in xfs_file.h	2024-04-15 14:54:09 -07:00
xfs_itable.c	xfs: hide private inodes from bulkstat and handle functions	2024-04-15 14:58:48 -07:00
xfs_itable.h
xfs_iunlink_item.c
xfs_iunlink_item.h
xfs_iwalk.c	xfs: pass xfs_buf lookup flags to xfs_*read_agi	2024-04-15 14:54:03 -07:00
xfs_iwalk.h
xfs_linux.h	xfs: refactor non-power-of-two alignment checks	2024-04-15 14:54:12 -07:00
xfs_log_cil.c	xfs: use kvfree() in xlog_cil_free_logvec()	2024-02-28 14:04:45 +05:30
xfs_log_priv.h	xfs: only clear log incompat flags at clean unmount	2024-04-15 14:54:06 -07:00
xfs_log_recover.c	xfs: capture inode generation numbers in the ondisk exchmaps log item	2024-04-15 14:54:24 -07:00
xfs_log.c	xfs: only clear log incompat flags at clean unmount	2024-04-15 14:54:06 -07:00
xfs_log.h	xfs: only clear log incompat flags at clean unmount	2024-04-15 14:54:06 -07:00
xfs_message.c
xfs_message.h
xfs_mount.c	xfs: only clear log incompat flags at clean unmount	2024-04-15 14:54:06 -07:00
xfs_mount.h	xfs: create a incompat flag for atomic file mapping exchanges	2024-04-15 14:54:15 -07:00
xfs_mru_cache.c	xfs: use GFP_KERNEL in pure transaction contexts	2024-02-13 18:07:35 +05:30
xfs_mru_cache.h
xfs_notify_failure.c	mm, pmem, xfs: Introduce MF_MEM_PRE_REMOVE for unbind	2023-12-07 14:34:26 +05:30
xfs_pnfs.c
xfs_pnfs.h
xfs_pwork.c
xfs_pwork.h
xfs_qm_bhv.c	xfs: track quota updates during live quotacheck	2024-02-22 12:30:55 -08:00
xfs_qm_syscalls.c
xfs_qm.c	xfs: report quota block corruption errors to the health system	2024-02-22 12:32:44 -08:00
xfs_qm.h	xfs: track quota updates during live quotacheck	2024-02-22 12:30:55 -08:00
xfs_quota.h	xfs: track quota updates during live quotacheck	2024-02-22 12:30:55 -08:00
xfs_quotaops.c
xfs_refcount_item.c	xfs: place intent recovery under NOFS allocation context	2024-02-13 18:07:35 +05:30
xfs_refcount_item.h
xfs_reflink.c	xfs: support deferred bmap updates on the attr fork	2024-02-22 12:44:32 -08:00
xfs_reflink.h
xfs_rmap_item.c	xfs: place intent recovery under NOFS allocation context	2024-02-13 18:07:35 +05:30
xfs_rmap_item.h
xfs_rtalloc.c	xfs: report realtime metadata corruption errors to the health system	2024-02-22 12:32:44 -08:00
xfs_rtalloc.h	xfs: move xfs_bmap_rtalloc to xfs_rtalloc.c	2023-12-22 11:18:11 +05:30
xfs_stats.c	xfs: define an in-memory btree for storing refcount bag info during repairs	2024-02-22 12:43:40 -08:00
xfs_stats.h	xfs: define an in-memory btree for storing refcount bag info during repairs	2024-02-22 12:43:40 -08:00
xfs_super.c	xfs: introduce a file mapping exchange log intent item	2024-04-15 14:54:16 -07:00
xfs_super.h	xfs: create scaffolding for creating debugfs entries	2023-08-10 07:48:07 -07:00
xfs_symlink.c	xfs: pass the owner to xfs_symlink_write_target	2024-04-15 14:58:57 -07:00
xfs_symlink.h	xfs: move remote symlink target read function to libxfs	2024-02-22 12:45:17 -08:00
xfs_sysctl.c	fs: Remove the now superfluous sentinel elements from ctl_table array	2023-12-28 04:57:57 -08:00
xfs_sysctl.h	xfs: add debug knobs to control btree bulk load slack factors	2023-12-15 10:03:28 -08:00
xfs_sysfs.c	xfs: remove duplicate ifdefs	2024-02-17 09:32:32 +05:30
xfs_sysfs.h
xfs_trace.c	xfs: bind together the front and back ends of the file range exchange code	2024-04-15 14:54:18 -07:00
xfs_trace.h	xfs: repair extended attributes	2024-04-15 14:58:53 -07:00
xfs_trans_ail.c	xfs: convert remaining kmem_free() to kfree()	2024-02-13 18:07:34 +05:30
xfs_trans_buf.c	xfs: launder in-memory btree buffers before transaction commit	2024-02-22 12:43:36 -08:00
xfs_trans_dquot.c	xfs: track quota updates during live quotacheck	2024-02-22 12:30:55 -08:00
xfs_trans_priv.h
xfs_trans.c	xfs: Replace xfs_isilocked with xfs_assert_ilocked	2024-02-19 21:19:33 +05:30
xfs_trans.h	xfs: don't use current->journal_info	2024-03-25 10:21:01 +05:30
xfs_xattr.c	xfs: only clear log incompat flags at clean unmount	2024-04-15 14:54:06 -07:00
xfs_xattr.h	xfs: move xfs_xattr_handlers to .rodata	2023-10-10 13:49:20 +02:00
xfs.h