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linux-stable/fs/btrfs
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Tetsuo Handa a687c2890f btrfs: set generation before calling btrfs_clean_tree_block in btrfs_init_new_buffer 
commit cbddcc4fa3 upstream.

syzbot is reporting uninit-value in btrfs_clean_tree_block() [1], for
commit bc877d285c ("btrfs: Deduplicate extent_buffer init code")
missed that btrfs_set_header_generation() in btrfs_init_new_buffer() must
not be moved to after clean_tree_block() because clean_tree_block() is
calling btrfs_header_generation() since commit 55c69072d6 ("Btrfs:
Fix extent_buffer usage when nodesize != leafsize").

Since memzero_extent_buffer() will reset "struct btrfs_header" part, we
can't move btrfs_set_header_generation() to before memzero_extent_buffer().
Just re-add btrfs_set_header_generation() before btrfs_clean_tree_block().

Link: https://syzkaller.appspot.com/bug?extid=fba8e2116a12609b6c59 [1]
Reported-by: syzbot <syzbot+fba8e2116a12609b6c59@syzkaller.appspotmail.com>
Fixes: bc877d285c ("btrfs: Deduplicate extent_buffer init code")
CC: stable@vger.kernel.org # 4.19+
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-24 09:56:53 +02:00
..
tests Revert "btrfs: turn fs_info member buffer_radix into XArray" 2022-07-15 19:14:33 +02:00
acl.c btrfs: reserve correct number of items for inode creation 2022-05-16 17:03:08 +02:00
async-thread.c btrfs: simplify WQ_HIGHPRI handling in struct btrfs_workqueue 2022-05-16 17:03:15 +02:00
async-thread.h btrfs: simplify WQ_HIGHPRI handling in struct btrfs_workqueue 2022-05-16 17:03:15 +02:00
backref.c btrfs: unify the error handling pattern for read_tree_block() 2022-03-14 13:13:53 +01:00
backref.h btrfs: remove ignore_offset argument from btrfs_find_all_roots() 2021-08-23 13:19:01 +02:00
block-group.c btrfs: enhance unsupported compat RO flags handling 2022-10-24 09:56:52 +02:00
block-group.h btrfs: fix space cache corruption and potential double allocations 2022-08-31 17:18:12 +02:00
block-rsv.c btrfs: reserve extra space for the free space tree 2022-01-07 14:18:25 +01:00
block-rsv.h btrfs: init root block_rsv at init root time 2022-01-03 15:09:48 +01:00
btrfs_inode.h btrfs: move struct btrfs_dio_private to inode.c 2022-05-16 17:17:32 +02:00
check-integrity.c btrfs: check-integrity: simplify bio allocation in btrfsic_read_block 2022-05-16 17:03:12 +02:00
check-integrity.h btrfs: check-integrity: split submit_bio from btrfsic checking 2022-05-16 17:03:12 +02:00
compression.c btrfs: derive compression type from extent map during reads 2022-05-16 17:17:31 +02:00
compression.h btrfs: derive compression type from extent map during reads 2022-05-16 17:17:31 +02:00
ctree.c btrfs: fix lockdep splat with reloc root extent buffers 2022-09-05 10:31:35 +02:00
ctree.h btrfs: zoned: fix API misuse of zone finish waiting 2022-09-15 10:47:10 +02:00
delalloc-space.c btrfs: convert count_max_extents() to use fs_info->max_extent_size 2022-08-17 15:16:11 +02:00
delalloc-space.h
delayed-inode.c Revert "btrfs: turn delayed_nodes_tree into an XArray" 2022-07-15 19:15:19 +02:00
delayed-inode.h
delayed-ref.c btrfs: remove btrfs_delayed_extent_op::is_data 2022-05-16 17:17:31 +02:00
delayed-ref.h btrfs: remove btrfs_delayed_extent_op::is_data 2022-05-16 17:17:31 +02:00
dev-replace.c btrfs: add info when mount fails due to stale replace target 2022-08-31 17:18:12 +02:00
dev-replace.h
dir-item.c btrfs: use btrfs_for_each_slot in btrfs_search_dir_index_item 2022-05-16 17:03:07 +02:00
discard.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
discard.h
disk-io.c btrfs: fix hang during unmount when stopping a space reclaim worker 2022-09-28 11:32:04 +02:00
disk-io.h btrfs: move lockdep class helpers to locking.c 2022-09-05 10:31:35 +02:00
export.c
export.h
extent-io-tree.h btrfs: Convert from invalidatepage to invalidate_folio 2022-03-15 08:23:29 -04:00
extent-tree.c btrfs: set generation before calling btrfs_clean_tree_block in btrfs_init_new_buffer 2022-10-24 09:56:53 +02:00
extent_io.c btrfs: fix lockdep splat with reloc root extent buffers 2022-09-05 10:31:35 +02:00
extent_io.h Page cache changes for 5.19 2022-05-24 19:55:07 -07:00
extent_map.c btrfs: assert we have a write lock when removing and replacing extent maps 2022-03-14 13:13:50 +01:00
extent_map.h btrfs: defrag: don't use merged extent map for their generation check 2022-02-23 17:43:13 +01:00
file-item.c btrfs: handle csum lookup errors properly on reads 2022-03-14 13:13:51 +01:00
file.c btrfs: fix missed extent on fsync after dropping extent maps 2022-10-24 09:56:52 +02:00
free-space-cache.c Page cache changes for 5.19 2022-05-24 19:55:07 -07:00
free-space-cache.h btrfs: change name and type of private member of btrfs_free_space_ctl 2022-01-03 15:09:50 +01:00
free-space-tree.c btrfs: use rbtree with leftmost node cached for tracking lowest block group 2022-05-16 17:03:13 +02:00
free-space-tree.h
inode-item.c btrfs: make should_throttle loop local in btrfs_truncate_inode_items 2022-01-07 14:18:25 +01:00
inode-item.h btrfs: add inode to truncate control 2022-01-07 14:18:24 +01:00
inode.c btrfs: zoned: fix API misuse of zone finish waiting 2022-09-15 10:47:10 +02:00
ioctl.c Page cache changes for 5.19 2022-05-24 19:55:07 -07:00
Kconfig btrfs: use generic Kconfig option for 256kB page size limit 2022-01-20 08:52:55 +02:00
locking.c btrfs: fix lockdep splat with reloc root extent buffers 2022-09-05 10:31:35 +02:00
locking.h btrfs: fix lockdep splat with reloc root extent buffers 2022-09-05 10:31:35 +02:00
lzo.c btrfs: add lzo workspace buffer length constants 2022-03-14 13:13:50 +01:00
Makefile Kbuild: add -Wno-shift-negative-value where -Wextra is used 2022-03-13 17:30:31 +09:00
misc.h btrfs: use correct header for div_u64 in misc.h 2021-09-07 14:29:50 +02:00
ordered-data.c btrfs: add BTRFS_IOC_ENCODED_WRITE 2022-03-14 13:13:51 +01:00
ordered-data.h btrfs: add BTRFS_IOC_ENCODED_WRITE 2022-03-14 13:13:51 +01:00
orphan.c
print-tree.c btrfs: unify the error handling pattern for read_tree_block() 2022-03-14 13:13:53 +01:00
print-tree.h
props.c btrfs: move common inode creation code into btrfs_create_new_inode() 2022-05-16 17:03:08 +02:00
props.h btrfs: move common inode creation code into btrfs_create_new_inode() 2022-05-16 17:03:08 +02:00
qgroup.c btrfs: fix race between quota enable and quota rescan ioctl 2022-10-24 09:56:52 +02:00
qgroup.h btrfs: avoid blocking on space revervation when doing nowait dio writes 2022-05-16 17:03:10 +02:00
raid56.c btrfs: raid56: don't trust any cached sector in __raid56_parity_recover() 2022-08-21 15:20:08 +02:00
raid56.h btrfs: raid56: make raid56_add_scrub_pages() subpage compatible 2022-05-16 17:03:15 +02:00
rcu-string.h
ref-verify.c btrfs: stop accessing ->extent_root directly 2022-01-03 15:09:49 +01:00
ref-verify.h
reflink.c btrfs: add missing inode updates on each iteration when replacing extents 2022-06-21 14:43:21 +02:00
reflink.h
relocation.c btrfs: fix lockdep splat with reloc root extent buffers 2022-09-05 10:31:35 +02:00
root-tree.c btrfs: fix silent failure when deleting root reference 2022-08-31 17:18:12 +02:00
scrub.c btrfs: scrub: move scrub_remap_extent() call into scrub_extent() 2022-05-16 17:17:31 +02:00
send.c for-5.19-rc7-tag 2022-07-16 13:48:55 -07:00
send.h btrfs: reuse existing inode from btrfs_ioctl 2022-03-14 13:13:46 +01:00
space-info.c btrfs: fix the max chunk size and stripe length calculation 2022-09-15 10:47:16 +02:00
space-info.h btrfs: zoned: introduce space_info->active_total_bytes 2022-08-17 15:16:12 +02:00
struct-funcs.c btrfs: add special case to setget helpers for 64k pages 2021-08-23 13:18:58 +02:00
subpage.c btrfs: remove unnecessary type casts 2022-05-16 17:03:11 +02:00
subpage.h btrfs: make nodesize >= PAGE_SIZE case to reuse the non-subpage routine 2022-05-16 17:03:11 +02:00
super.c btrfs: enhance unsupported compat RO flags handling 2022-10-24 09:56:52 +02:00
sysfs.c btrfs: change the bg_reclaim_threshold valid region from 0 to 100 2022-05-16 17:03:11 +02:00
sysfs.h
transaction.c Revert "btrfs: turn fs_roots_radix in btrfs_fs_info into an XArray" 2022-07-15 19:14:28 +02:00
transaction.h btrfs: pass btrfs_fs_info for deleting snapshots and cleaner 2022-03-14 13:13:52 +01:00
tree-checker.c btrfs: tree-checker: check for overlapping extent items 2022-09-05 10:31:35 +02:00
tree-checker.h btrfs: tree-checker: check extent buffer owner against owner rootid 2022-05-16 17:03:09 +02:00
tree-defrag.c btrfs: remove unnecessary extent root check in btrfs_defrag_leaves 2022-01-03 15:09:48 +01:00
tree-log.c btrfs: fix warning during log replay when bumping inode link count 2022-08-25 11:45:08 +02:00
tree-log.h btrfs: tree-log: make the return value for log syncing consistent 2022-08-17 15:16:10 +02:00
tree-mod-log.c btrfs: fix race when picking most recent mod log operation for an old root 2021-04-20 19:27:17 +02:00
tree-mod-log.h
ulist.c
ulist.h
uuid-tree.c btrfs: drop the _nr from the item helpers 2022-01-03 15:09:43 +01:00
verity.c btrfs: drop the _nr from the item helpers 2022-01-03 15:09:43 +01:00
volumes.c btrfs: fix the max chunk size and stripe length calculation 2022-09-15 10:47:16 +02:00
volumes.h for-5.19-tag 2022-05-24 18:52:35 -07:00
xattr.c btrfs: check if root is readonly while setting security xattr 2022-08-31 17:18:12 +02:00
xattr.h
zlib.c Revert "btrfs: compression: drop kmap/kunmap from zlib" 2021-10-29 13:03:05 +02:00
zoned.c btrfs: zoned: wait for extent buffer IOs before finishing a zone 2022-09-28 11:32:04 +02:00
zoned.h btrfs: zoned: activate metadata block group on flush_space 2022-08-17 15:16:12 +02:00
zstd.c btrfs: use non-bh spin_lock in zstd timer callback 2022-05-16 17:03:13 +02:00