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acf104c233
linux/fs/xfs/libxfs
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Darrick J. Wong acf104c233 xfs: detect overflows in bmbt records 
Detect file block mappings with a blockcount that's either so large that
integer overflows occur or are zero, because neither are valid in the
filesystem.  Worse yet, attempting directory modifications causes the
iext code to trip over the bmbt key handling and takes the filesystem
down.  We can fix most of this by preventing the bad metadata from
entering the incore structures in the first place.

Found by setting blockcount=0 in a directory data fork mapping and
watching the fireworks.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-12-09 09:49:38 -08:00
..
xfs_ag_resv.c xfs: fix missing header includes 2019-11-07 13:00:53 -08:00
xfs_ag_resv.h xfs: get rid of unnecessary xfs_perag_{get,put} pairs 2020-07-14 08:47:33 -07:00
xfs_ag.c xfs: store inode btree block counts in AGI header 2020-09-15 20:52:39 -07:00
xfs_ag.h xfs: add a new ioctl to describe allocation group geometry 2019-04-14 18:15:57 -07:00
xfs_alloc_btree.c xfs: Remove kmem_zone_zalloc() usage 2020-07-28 20:24:14 -07:00
xfs_alloc_btree.h xfs: Use the correct style for SPDX License Identifier 2020-05-13 15:32:45 -07:00
xfs_alloc.c xfs: set xefi_discard when creating a deferred agfl free log intent item 2020-10-29 08:19:18 -07:00
xfs_alloc.h xfs: Use the correct style for SPDX License Identifier 2020-05-13 15:32:45 -07:00
xfs_attr_leaf.c xfs: fix forkoff miscalculation related to XFS_LITINO(mp) 2020-11-18 09:23:51 -08:00
xfs_attr_leaf.h xfs: Add xfs_has_attr and subroutines 2020-07-28 20:24:14 -07:00
xfs_attr_remote.c xfs: remove the redundant crc feature check in xfs_attr3_rmt_verify 2020-09-25 11:34:07 -07:00
xfs_attr_remote.h xfs: Refactor xfs_attr_rmtval_remove 2020-07-28 20:28:11 -07:00
xfs_attr_sf.h xfs: Convert xfs_attr_sf macros to inline functions 2020-09-15 20:52:42 -07:00
xfs_attr.c xfs: Convert xfs_attr_sf macros to inline functions 2020-09-15 20:52:42 -07:00
xfs_attr.h xfs: Add xfs_has_attr and subroutines 2020-07-28 20:24:14 -07:00
xfs_bit.c xfs: fix missing header includes 2019-11-07 13:00:53 -08:00
xfs_bit.h xfs: Use the correct style for SPDX License Identifier 2020-05-13 15:32:45 -07:00
xfs_bmap_btree.c xfs: Remove kmem_zone_zalloc() usage 2020-07-28 20:24:14 -07:00
xfs_bmap_btree.h xfs: Use the correct style for SPDX License Identifier 2020-05-13 15:32:45 -07:00
xfs_bmap.c xfs: detect overflows in bmbt records 2020-12-09 09:49:38 -08:00
xfs_bmap.h xfs: set xefi_discard when creating a deferred agfl free log intent item 2020-10-29 08:19:18 -07:00
xfs_btree_staging.c xfs: support bulk loading of staged btrees 2020-03-18 08:12:23 -07:00
xfs_btree_staging.h xfs: xfs_btree_staging.h: delete duplicated words 2020-07-28 20:24:14 -07:00
xfs_btree.c xfs: support bulk loading of staged btrees 2020-03-18 08:12:23 -07:00
xfs_btree.h xfs: Use the correct style for SPDX License Identifier 2020-05-13 15:32:45 -07:00
xfs_cksum.h
xfs_da_btree.c xfs: Refactor xfs_da_state_alloc() helper 2020-07-28 20:24:14 -07:00
xfs_da_btree.h xfs: Refactor xfs_da_state_alloc() helper 2020-07-28 20:24:14 -07:00
xfs_da_format.h xfs: code cleanup in xfs_attr_leaf_entsize_{remote,local} 2020-09-25 11:34:08 -07:00
xfs_defer.c xfs: only relog deferred intent items if free space in the log gets low 2020-10-07 08:40:29 -07:00
xfs_defer.h xfs: fix an incore inode UAF in xfs_bui_recover 2020-10-07 08:40:28 -07:00
xfs_dir2_block.c xfs: move the per-fork nextents fields into struct xfs_ifork 2020-05-19 09:40:58 -07:00
xfs_dir2_data.c xfs: check owner of dir3 data blocks 2020-03-12 07:58:12 -07:00
xfs_dir2_leaf.c xfs: add a function to deal with corrupt buffers post-verifiers 2020-03-12 07:58:12 -07:00
xfs_dir2_node.c xfs: Refactor xfs_da_state_alloc() helper 2020-07-28 20:24:14 -07:00
xfs_dir2_priv.h xfs: Use the correct style for SPDX License Identifier 2020-05-13 15:32:45 -07:00
xfs_dir2_sf.c xfs: move the fork format fields into struct xfs_ifork 2020-05-19 09:40:58 -07:00
xfs_dir2.c xfs: move the fork format fields into struct xfs_ifork 2020-05-19 09:40:58 -07:00
xfs_dir2.h xfs: Use the correct style for SPDX License Identifier 2020-05-13 15:32:45 -07:00
xfs_dquot_buf.c xfs: widen ondisk quota expiration timestamps to handle y2038+ 2020-09-15 20:52:41 -07:00
xfs_errortag.h xfs: Use the correct style for SPDX License Identifier 2020-05-13 15:32:45 -07:00
xfs_format.h xfs: enable the needsrepair feature 2020-12-09 09:49:38 -08:00
xfs_fs.h xfs: widen ondisk inode timestamps to deal with y2038+ 2020-09-15 20:52:41 -07:00
xfs_health.h xfs: Use the correct style for SPDX License Identifier 2020-05-13 15:32:45 -07:00
xfs_ialloc_btree.c xfs: support inode btree blockcounts in online repair 2020-09-15 20:52:40 -07:00
xfs_ialloc_btree.h xfs: add support for inode btree staging cursors 2020-03-18 08:12:23 -07:00
xfs_ialloc.c xfs: widen ondisk inode timestamps to deal with y2038+ 2020-09-15 20:52:41 -07:00
xfs_ialloc.h xfs: don't commit sunit/swidth updates to disk if that would cause repair failures 2019-12-19 07:53:48 -08:00
xfs_iext_tree.c xfs: remove kmem_realloc() 2020-09-06 18:05:51 -07:00
xfs_inode_buf.c xfs: widen ondisk inode timestamps to deal with y2038+ 2020-09-15 20:52:41 -07:00
xfs_inode_buf.h xfs: use the existing type definition for di_projid 2020-09-25 11:34:07 -07:00
xfs_inode_fork.c xfs: remove kmem_realloc() 2020-09-06 18:05:51 -07:00
xfs_inode_fork.h xfs: cleanup xfs_idestroy_fork 2020-05-19 09:40:59 -07:00
xfs_log_format.h xfs: redefine xfs_ictimestamp_t 2020-09-15 20:52:41 -07:00
xfs_log_recover.h xfs: remove xlog_recover_iodone 2020-09-15 20:52:39 -07:00
xfs_log_rlimit.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_quota_defs.h xfs: widen ondisk quota expiration timestamps to handle y2038+ 2020-09-15 20:52:41 -07:00
xfs_refcount_btree.c xfs: Remove kmem_zone_zalloc() usage 2020-07-28 20:24:14 -07:00
xfs_refcount_btree.h xfs: add support for refcount btree staging cursors 2020-03-18 08:12:23 -07:00
xfs_refcount.c xfs: make the btree ag cursor private union anonymous 2020-03-13 10:37:15 -07:00
xfs_refcount.h xfs: remove unnecessary int returns from deferred refcount functions 2019-08-28 08:31:02 -07:00
xfs_rmap_btree.c xfs: revert "xfs: fix rmap key and record comparison functions" 2020-11-19 15:17:50 -08:00
xfs_rmap_btree.h xfs: add support for rmap btree staging cursors 2020-03-18 08:12:23 -07:00
xfs_rmap.c xfs: fix flags argument to rmap lookup when converting shared file rmaps 2020-11-10 16:47:34 -08:00
xfs_rmap.h xfs: reinitialize rm_flags when unpacking an offset into an rmap irec 2019-08-28 08:31:02 -07:00
xfs_rtbitmap.c xfs: fix high key handling in the rt allocator's query_range function 2020-10-16 15:34:28 -07:00
xfs_sb.c xfs: move kernel-specific superblock validation out of libxfs 2020-12-08 19:30:10 -08:00
xfs_sb.h xfs: change some error-less functions to void types 2019-05-01 20:26:30 -07:00
xfs_shared.h xfs: widen ondisk inode timestamps to deal with y2038+ 2020-09-15 20:52:41 -07:00
xfs_symlink_remote.c xfs: move the fork format fields into struct xfs_ifork 2020-05-19 09:40:58 -07:00
xfs_trans_inode.c xfs: widen ondisk inode timestamps to deal with y2038+ 2020-09-15 20:52:41 -07:00
xfs_trans_resv.c xfs: add a new xfs_sb_version_has_v3inode helper 2020-03-19 08:47:34 -07:00
xfs_trans_resv.h
xfs_trans_space.h xfs: fix off-by-one in inode alloc block reservation calculation 2020-08-26 14:13:21 -07:00
xfs_types.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_types.h xfs: remove unused structure members & simple typedefs 2019-11-13 18:22:41 -08:00