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linux/fs/btrfs
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Mikhail Zaslonko 25adbb08ae btrfs: zlib: fix avail_in bytes for s390 zlib HW compression path 
commit 0ee4736c00 upstream.

Since the input data length passed to zlib_compress_folios() can be
arbitrary, always setting strm.avail_in to a multiple of PAGE_SIZE may
cause read-in bytes to exceed the input range. Currently this triggers
an assert in btrfs_compress_folios() on the debug kernel (see below).
Fix strm.avail_in calculation for S390 hardware acceleration path.

  assertion failed: *total_in <= orig_len, in fs/btrfs/compression.c:1041
  ------------[ cut here ]------------
  kernel BUG at fs/btrfs/compression.c:1041!
  monitor event: 0040 ilc:2 [#1] PREEMPT SMP
  CPU: 16 UID: 0 PID: 325 Comm: kworker/u273:3 Not tainted 6.13.0-20241204.rc1.git6.fae3b21430ca.300.fc41.s390x+debug #1
  Hardware name: IBM 3931 A01 703 (z/VM 7.4.0)
  Workqueue: btrfs-delalloc btrfs_work_helper
  Krnl PSW : 0704d00180000000 0000021761df6538 (btrfs_compress_folios+0x198/0x1a0)
             R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:1 PM:0 RI:0 EA:3
  Krnl GPRS: 0000000080000000 0000000000000001 0000000000000047 0000000000000000
             0000000000000006 ffffff01757bb000 000001976232fcc0 000000000000130c
             000001976232fcd0 000001976232fcc8 00000118ff4a0e30 0000000000000001
             00000111821ab400 0000011100000000 0000021761df6534 000001976232fb58
  Krnl Code: 0000021761df6528: c020006f5ef4        larl    %r2,0000021762be2310
             0000021761df652e: c0e5ffbd09d5        brasl   %r14,00000217615978d8
            #0000021761df6534: af000000            mc      0,0
            >0000021761df6538: 0707                bcr     0,%r7
             0000021761df653a: 0707                bcr     0,%r7
             0000021761df653c: 0707                bcr     0,%r7
             0000021761df653e: 0707                bcr     0,%r7
             0000021761df6540: c004004bb7ec        brcl    0,000002176276d518
  Call Trace:
   [<0000021761df6538>] btrfs_compress_folios+0x198/0x1a0
  ([<0000021761df6534>] btrfs_compress_folios+0x194/0x1a0)
   [<0000021761d97788>] compress_file_range+0x3b8/0x6d0
   [<0000021761dcee7c>] btrfs_work_helper+0x10c/0x160
   [<0000021761645760>] process_one_work+0x2b0/0x5d0
   [<000002176164637e>] worker_thread+0x20e/0x3e0
   [<000002176165221a>] kthread+0x15a/0x170
   [<00000217615b859c>] __ret_from_fork+0x3c/0x60
   [<00000217626e72d2>] ret_from_fork+0xa/0x38
  INFO: lockdep is turned off.
  Last Breaking-Event-Address:
   [<0000021761597924>] _printk+0x4c/0x58
  Kernel panic - not syncing: Fatal exception: panic_on_oops

Fixes: fd1e75d010 ("btrfs: make compression path to be subpage compatible")
CC: stable@vger.kernel.org # 6.12+
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-01-17 13:40:48 +01:00
..
tests btrfs: convert find_lock_delalloc_range() to use a folio 2024-09-10 16:51:14 +02:00
accessors.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
accessors.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
acl.c btrfs: remove unused included headers 2024-03-04 16:24:46 +01:00
acl.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
async-thread.c btrfs: remove unused included headers 2024-03-04 16:24:46 +01:00
async-thread.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
backref.c btrfs: drop the backref cache during relocation if we commit 2024-10-01 19:10:26 +02:00
backref.h btrfs: uninline some static inline helpers from backref.h 2024-03-04 16:24:53 +01:00
bio.c btrfs: handle bio_split() errors 2025-01-09 13:33:44 +01:00
bio.h btrfs: fix error propagation of split bios 2024-10-23 18:17:43 +02:00
block-group.c btrfs: zoned: fix zone unusable accounting for freed reserved extent 2024-10-17 16:16:46 +02:00
block-group.h btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
block-rsv.c btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
block-rsv.h btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
btrfs_inode.h btrfs: change btrfs_encoded_read() so that reading of extent is done by caller 2024-12-09 10:40:55 +01:00
compression.c btrfs: convert btrfs_decompress() to take a folio 2024-09-10 16:51:21 +02:00
compression.h btrfs: convert btrfs_decompress() to take a folio 2024-09-10 16:51:21 +02:00
ctree.c btrfs: fix use-after-free when COWing tree bock and tracing is enabled 2025-01-02 10:34:24 +01:00
ctree.h btrfs: fix improper generation check in snapshot delete 2024-12-27 14:02:14 +01:00
defrag.c btrfs: fix defrag not merging contiguous extents due to merged extent maps 2024-10-31 16:46:41 +01:00
defrag.h btrfs: drop transaction parameter from btrfs_add_inode_defrag() 2024-09-10 16:51:19 +02:00
delalloc-space.c btrfs: constify pointer parameters where applicable 2024-07-11 15:33:22 +02:00
delalloc-space.h btrfs: constify pointer parameters where applicable 2024-07-11 15:33:22 +02:00
delayed-inode.c btrfs: pass a btrfs_inode to btrfs_readdir_get_delayed_items() 2024-07-11 15:33:28 +02:00
delayed-inode.h btrfs: pass a btrfs_inode to btrfs_readdir_get_delayed_items() 2024-07-11 15:33:28 +02:00
delayed-ref.c btrfs: fix incorrect comparison for delayed refs 2024-11-14 16:11:02 +01:00
delayed-ref.h btrfs: use sector numbers as keys for the dirty extents xarray 2024-10-11 18:33:35 +02:00
dev-replace.c btrfs: don't take dev_replace rwsem on task already holding it 2024-12-14 20:03:36 +01:00
dev-replace.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
dir-item.c btrfs: fix passing 0 to ERR_PTR in btrfs_search_dir_index_item() 2024-10-22 16:10:55 +02:00
dir-item.h btrfs: constify pointer parameters where applicable 2024-07-11 15:33:22 +02:00
direct-io.c btrfs: do not hold the extent lock for entire read 2024-09-10 16:51:20 +02:00
direct-io.h btrfs: move the direct IO code into its own file 2024-07-11 15:33:29 +02:00
discard.c btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
discard.h btrfs: unexport btrfs_run_discard_work and make it static 2023-06-19 13:59:25 +02:00
disk-io.c btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount 2025-01-09 13:33:44 +01:00
disk-io.h btrfs: drop unused parameter options from open_ctree() 2024-12-14 20:04:12 +01:00
export.c btrfs: remove super block argument from btrfs_iget() 2024-07-11 15:33:25 +02:00
export.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
extent-io-tree.c btrfs: introduce EXTENT_DIO_LOCKED 2024-09-10 16:51:20 +02:00
extent-io-tree.h btrfs: introduce EXTENT_DIO_LOCKED 2024-09-10 16:51:20 +02:00
extent-tree.c btrfs: fix improper generation check in snapshot delete 2024-12-27 14:02:14 +01:00
extent-tree.h btrfs: do not BUG_ON() when freeing tree block after error 2024-07-11 15:33:26 +02:00
extent_io.c fs/writeback: convert wbc_account_cgroup_owner to take a folio 2025-01-17 13:40:33 +01:00
extent_io.h btrfs: convert try_release_extent_mapping() to take a folio 2024-09-10 16:51:21 +02:00
extent_map.c btrfs: fix extent map merging not happening for adjacent extents 2024-10-31 16:45:16 +01:00
extent_map.h btrfs: do not directly include rwlock_types.h 2024-07-11 15:33:22 +02:00
fiemap.c btrfs: initialize last_extent_end to fix -Wmaybe-uninitialized warning in extent_fiemap() 2024-08-26 16:58:13 +02:00
fiemap.h btrfs: move fiemap code into its own file 2024-07-11 15:33:20 +02:00
file-item.c btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
file-item.h btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
file.c btrfs: fix race setting file private on concurrent lseek using same fd 2024-09-17 17:31:48 +02:00
file.h btrfs: move the direct IO code into its own file 2024-07-11 15:33:29 +02:00
free-space-cache.c btrfs: add cancellation points to trim loops 2024-10-07 23:21:56 +02:00
free-space-cache.h btrfs: add cancellation points to trim loops 2024-10-07 23:21:56 +02:00
free-space-tree.c btrfs: do not BUG_ON() when freeing tree block after error 2024-07-11 15:33:26 +02:00
free-space-tree.h btrfs: add forward declarations and headers, part 2 2024-03-04 16:24:49 +01:00
fs.c btrfs: sysfs: update fs features directory asynchronously 2023-02-13 17:50:35 +01:00
fs.h btrfs: don't take dev_replace rwsem on task already holding it 2024-12-14 20:03:36 +01:00
inode-item.c btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
inode-item.h btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
inode.c fs/writeback: convert wbc_account_cgroup_owner to take a folio 2025-01-17 13:40:33 +01:00
ioctl.c btrfs: change btrfs_encoded_read() so that reading of extent is done by caller 2024-12-09 10:40:55 +01:00
ioctl.h btrfs: constify pointer parameters where applicable 2024-07-11 15:33:22 +02:00
Kconfig btrfs: check-integrity: remove CONFIG_BTRFS_FS_CHECK_INTEGRITY option 2023-10-12 16:44:05 +02:00
locking.c btrfs: change root->root_key.objectid to btrfs_root_id() 2024-05-07 21:31:06 +02:00
locking.h btrfs: cleanup recursive include of the same header 2024-07-11 15:33:22 +02:00
lru_cache.c btrfs: fix typos found by codespell 2023-12-15 23:00:04 +01:00
lru_cache.h btrfs: cleanup recursive include of the same header 2024-07-11 15:33:22 +02:00
lzo.c btrfs: convert lzo_decompress() to take a folio 2024-09-10 16:51:21 +02:00
Makefile btrfs: move the direct IO code into its own file 2024-07-11 15:33:29 +02:00
messages.c btrfs: disable rate limiting when debug enabled 2024-10-01 19:29:41 +02:00
messages.h btrfs: constify fs_info parameter in __btrfs_panic() 2023-12-15 20:27:02 +01:00
misc.h btrfs: constify pointer parameters where applicable 2024-07-11 15:33:22 +02:00
ordered-data.c btrfs: add and use helper to verify the calling task has locked the inode 2024-09-10 16:51:22 +02:00
ordered-data.h btrfs: convert btrfs_mark_ordered_io_finished() to take a folio 2024-09-10 16:51:14 +02:00
orphan.c btrfs: BTRFS_PATH_AUTO_FREE in orphan.c 2024-09-10 16:51:22 +02:00
orphan.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
print-tree.c btrfs: avoid using fixed char array size for tree names 2024-08-02 22:44:27 +02:00
print-tree.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
props.c btrfs: pass a btrfs_inode to btrfs_set_prop() 2024-07-11 15:33:29 +02:00
props.h btrfs: pass a btrfs_inode to btrfs_set_prop() 2024-07-11 15:33:29 +02:00
qgroup.c btrfs: fix transaction atomicity bug when enabling simple quotas 2025-01-02 10:34:24 +01:00
qgroup.h btrfs: qgroup: set a more sane default value for subtree drop threshold 2024-10-22 16:09:11 +02:00
raid-stripe-tree.c btrfs: change RST lookup error message level to debug 2024-09-10 16:51:17 +02:00
raid-stripe-tree.h btrfs: remove raid-stripe-tree encoding field from stripe_extent 2024-07-11 15:33:28 +02:00
raid56.c btrfs: rename the extra_gfp parameter of btrfs_alloc_page_array() 2024-07-11 15:33:30 +02:00
raid56.h btrfs: add forward declarations and headers, part 2 2024-03-04 16:24:49 +01:00
rcu-string.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
ref-verify.c btrfs: ref-verify: fix use-after-free after invalid ref action 2024-12-09 10:40:56 +01:00
ref-verify.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
reflink.c btrfs: convert copy_inline_to_page() to use folio 2024-09-10 16:51:21 +02:00
reflink.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
relocation.c btrfs: check folio mapping after unlock in relocate_one_folio() 2025-01-02 10:34:25 +01:00
relocation.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
root-tree.c btrfs: change root->root_key.objectid to btrfs_root_id() 2024-05-07 21:31:06 +02:00
root-tree.h btrfs: qgroup: fix qgroup prealloc rsv leak in subvolume operations 2024-04-02 19:18:23 +02:00
scrub.c btrfs: avoid NULL pointer dereference if no valid extent tree 2025-01-17 13:40:37 +01:00
scrub.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
send.c btrfs: check folio mapping after unlock in put_file_data() 2025-01-02 10:34:25 +01:00
send.h btrfs: pass a btrfs_inode to btrfs_ioctl_send() 2024-07-11 15:33:28 +02:00
space-info.c btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
space-info.h btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
subpage.c btrfs: only unlock the to-be-submitted ranges inside a folio 2024-09-10 16:51:22 +02:00
subpage.h btrfs: only unlock the to-be-submitted ranges inside a folio 2024-09-10 16:51:22 +02:00
super.c btrfs: fix mount failure due to remount races 2024-12-14 20:04:13 +01:00
super.h btrfs: change BTRFS_MOUNT_* flags to 64bit type 2024-07-19 17:20:23 +02:00
sysfs.c btrfs: sysfs: fix direct super block member reads 2025-01-02 10:34:24 +01:00
sysfs.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
transaction.c btrfs: qgroup: use xarray to track dirty extents in transaction 2024-09-10 16:51:18 +02:00
transaction.h btrfs: fix race between direct IO write and fsync when using same fd 2024-09-03 20:29:55 +02:00
tree-checker.c btrfs: tree-checker: reject inline extent items with 0 ref count 2024-12-27 14:02:14 +01:00
tree-checker.h btrfs: make sure that WRITTEN is set on all metadata blocks 2024-05-02 22:11:13 +02:00
tree-log.c btrfs: fix uninitialized pointer free on read_alloc_one_name() error 2024-10-11 19:55:04 +02:00
tree-log.h btrfs: avoid transaction commit on any fsync after subvolume creation 2024-07-11 15:33:24 +02:00
tree-mod-log.c btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
tree-mod-log.h btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
ulist.c btrfs: preallocate ulist memory for qgroup rsv 2024-07-11 15:33:26 +02:00
ulist.h btrfs: preallocate ulist memory for qgroup rsv 2024-07-11 15:33:26 +02:00
uuid-tree.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
uuid-tree.h btrfs: move uuid tree related code to uuid-tree.[ch] 2024-09-10 16:51:12 +02:00
verity.c btrfs: add and use helper to verify the calling task has locked the inode 2024-09-10 16:51:22 +02:00
verity.h btrfs: add forward declarations and headers, part 1 2024-03-04 16:24:49 +01:00
volumes.c btrfs: do not clear read-only when adding sprout device 2024-12-14 20:03:36 +01:00
volumes.h btrfs: split remaining space to discard in chunks 2024-10-07 23:21:53 +02:00
xattr.c btrfs: add and use helper to verify the calling task has locked the inode 2024-09-10 16:51:22 +02:00
xattr.h btrfs: constify pointer parameters where applicable 2024-07-11 15:33:22 +02:00
zlib.c btrfs: zlib: fix avail_in bytes for s390 zlib HW compression path 2025-01-17 13:40:48 +01:00
zoned.c btrfs: zoned: fix missing RCU locking in error message when loading zone info 2024-10-09 13:23:51 +02:00
zoned.h btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
zstd.c btrfs: convert zstd_decompress() to take a folio 2024-09-10 16:51:21 +02:00