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Josef Bacik fdbdbd22ae btrfs: limit device extents to the device size 
commit 3c538de0f2a74d50aff7278c092f88ae59cee688 upstream.

There was a recent regression in btrfs/177 that started happening with
the size class patches ("btrfs: introduce size class to block group
allocator").  This however isn't a regression introduced by those
patches, but rather the bug was uncovered by a change in behavior in
these patches.  The patches triggered more chunk allocations in the
^free-space-tree case, which uncovered a race with device shrink.

The problem is we will set the device total size to the new size, and
use this to find a hole for a device extent.  However during shrink we
may have device extents allocated past this range, so we could
potentially find a hole in a range past our new shrink size.  We don't
actually limit our found extent to the device size anywhere, we assume
that we will not find a hole past our device size.  This isn't true with
shrink as we're relocating block groups and thus creating holes past the
device size.

Fix this by making sure we do not search past the new device size, and
if we wander into any device extents that start after our device size
simply break from the loop and use whatever hole we've already found.

CC: stable@vger.kernel.org # 4.14+
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-22 12:46:04 +01:00
..
9p 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" 2022-06-25 11:46:24 +02:00
adfs fs/adfs: super: fix use-after-free bug 2019-08-06 19:05:21 +02:00
affs affs: initialize fsdata in affs_truncate() 2023-02-06 07:46:28 +01:00
afs afs: Fix some tracing details 2020-04-02 16:34:33 +02:00
autofs4 autofs: fix a leak in autofs_expire_indirect() 2019-12-17 20:37:24 +01:00
befs
bfs bfs: add sanity check at bfs_fill_super() 2018-12-01 09:42:51 +01:00
btrfs btrfs: limit device extents to the device size 2023-02-22 12:46:04 +01:00
cachefiles cachefiles: Handle readpage error correctly 2020-11-05 11:07:05 +01:00
ceph ceph: don't truncate file in atomic_open 2022-10-26 13:16:53 +02:00
cifs cifs: fix confusing debug message 2023-01-18 09:26:38 +01:00
coda coda: add error handling for fget 2019-08-06 19:05:23 +02:00
configfs configfs: fix a race in configfs_{,un}register_subsystem() 2022-03-02 11:33:56 +01:00
cramfs Cramfs: fix abad comparison when wrap-arounds occur 2018-11-13 11:15:12 -08:00
crypto fscrypt: don't ignore minor_hash when hash is 0 2021-07-20 16:17:45 +02:00
debugfs debugfs: fix use-after-free on symlink traversal 2019-05-08 07:20:49 +02:00
devpts fs/devpts: always delete dcache dentry-s in dput() 2019-03-23 14:35:21 +01:00
dlm fs: dlm: handle -EBUSY first in lock arg validation 2022-10-26 13:16:55 +02:00
ecryptfs Revert "ecryptfs: replace BUG_ON with error handling code" 2021-05-26 11:47:00 +02:00
efivarfs efivarfs: revert "fix memory leak in efivarfs_create()" 2020-12-02 08:34:44 +01:00
efs
exofs exofs_mount(): fix leaks on failure exits 2019-12-05 15:37:28 +01:00
exportfs exportfs: fix 'passing zero to ERR_PTR()' warning 2020-01-27 14:46:06 +01:00
ext2 ext2: Add more validity checks for inode counts 2022-08-25 11:11:14 +02:00
ext4 ext4: allocate extended attribute value in vmalloc area 2023-01-18 09:26:40 +01:00
f2fs f2fs: let's avoid panic if extent_tree is not created 2023-01-24 07:05:18 +01:00
fat fat: add ratelimit to fat*_ent_bread() 2022-06-14 16:53:46 +02:00
freevxfs
fscache fscache: fix race between enablement and dropping of object 2018-12-17 09:28:53 +01:00
fuse fuse: limit nsec 2022-08-25 11:11:12 +02:00
gfs2 gfs2: Switch from strlcpy to strscpy 2022-11-25 17:36:55 +01:00
hfs hfs/hfsplus: avoid WARN_ON() for sanity check, use proper error handling 2023-01-18 09:26:41 +01:00
hfsplus hfs/hfsplus: use WARN_ON for sanity check 2023-01-18 09:26:41 +01:00
hostfs
hpfs
hugetlbfs hugetlbfs: hugetlb_fault_mutex_hash() cleanup 2021-06-03 08:36:25 +02:00
isofs isofs: Fix out of bound access for corrupted isofs image 2021-11-12 14:28:24 +01:00
jbd2 jbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted 2022-08-25 11:11:23 +02:00
jffs2 jffs2: fix memory leak in jffs2_do_fill_super 2022-06-14 16:53:57 +02:00
jfs fs: jfs: fix shift-out-of-bounds in dbDiscardAG 2023-01-18 09:26:30 +01:00
kernfs kernfs: fix use-after-free in __kernfs_remove 2022-11-03 23:50:53 +09:00
lockd lockd: don't use interval-based rebinding over TCP 2020-12-29 13:46:57 +01:00
minix fs/minix: reject too-large maximum file size 2020-08-21 09:48:15 +02:00
ncpfs
nfs pNFS/filelayout: Fix coalescing test for single DS 2023-01-24 07:05:18 +01:00
nfs_common nfs_common: need lock during iterate through the list 2020-12-29 13:47:01 +01:00
nfsd nfsd: fix handling of readdir in v4root vs. mount upcall timeout 2023-01-18 09:26:41 +01:00
nilfs2 nilfs2: fix general protection fault in nilfs_btree_insert() 2023-01-24 07:05:18 +01:00
nls
notify fsnotify: fix wrong lockdep annotations 2022-06-14 16:53:48 +02:00
ntfs ntfs: check overflow when iterating ATTR_RECORDs 2022-11-25 17:36:55 +01:00
ocfs2 ocfs2: fix memory leak in ocfs2_stack_glue_init() 2023-01-18 09:26:09 +01:00
omfs
openpromfs
orangefs orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string() 2023-01-18 09:26:33 +01:00
overlayfs ovl: fix missing negative dentry check in ovl_rename() 2021-10-17 10:08:32 +02:00
proc mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps 2023-02-22 12:46:03 +01:00
pstore pstore: Make sure CONFIG_PSTORE_PMSG selects CONFIG_RT_MUTEXES 2023-01-18 09:26:34 +01:00
qnx4 qnx4: work around gcc false positive warning bug 2021-10-06 15:05:08 +02:00
qnx6
quota quota: Check next/prev free block number after reading from quota file 2022-10-26 13:16:56 +02:00
ramfs ramfs: fix nommu mmap with gaps in the page cache 2020-10-29 09:07:11 +01:00
reiserfs fs: reiserfs: remove useless new_opts in reiserfs_remount 2023-02-06 07:46:30 +01:00
romfs romfs: fix uninitialized memory leak in romfs_dev_read() 2020-08-26 10:29:54 +02:00
squashfs Squashfs: fix handling and sanity checking of xattr_ids count 2023-02-22 12:46:03 +01:00
sysfs fs: sysfs_emit: Remove PAGE_SIZE alignment check 2022-03-23 09:01:35 +01:00
sysv fs: sysv: Fix sysv_nblocks() returns wrong value 2023-01-18 09:26:11 +01:00
tracefs tracefs: Only clobber mode/uid/gid on remount if asked 2022-09-20 11:51:31 +02:00
ubifs ubifs: Rectify space amount budget for mkdir/tmpfile operations 2022-04-20 09:08:25 +02:00
udf udf: Fix extension of the last extent in the file 2023-01-18 09:26:41 +01:00
ufs fs/ufs: avoid potential u32 multiplication overflow 2020-08-21 09:48:22 +02:00
xfs xfs: remove incorrect ASSERT in xfs_rename 2022-07-12 16:27:28 +02:00
aio.c aio: fix spectre gadget in lookup_ioctx 2018-12-21 14:13:04 +01:00
anon_inodes.c
attr.c vfs: Check the truncate maximum size in inode_newsize_ok() 2022-08-25 11:11:11 +02:00
bad_inode.c
binfmt_aout.c
binfmt_elf.c fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info() 2020-06-03 08:18:03 +02:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c binfmt_flat: do not stop relocating GOT entries prematurely on riscv 2022-06-14 16:53:43 +02:00
binfmt_misc.c binfmt_misc: fix shift-out-of-bounds in check_special_flags 2023-01-18 09:26:29 +01:00
binfmt_script.c exec: load_script: Do not exec truncated interpreter path 2019-11-06 12:42:59 +01:00
block_dev.c block: reexpand iov_iter after read/write 2021-05-22 10:57:43 +02:00
buffer.c mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-25 17:36:55 +01:00
char_dev.c chardev: fix error handling in cdev_device_add() 2023-01-18 09:26:24 +01:00
compat.c
compat_binfmt_elf.c
compat_ioctl.c fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP 2020-01-09 10:17:58 +01:00
coredump.c coredump: fix crash when umh is disabled 2020-05-20 08:16:58 +02:00
dax.c dax: pass NOWAIT flag to iomap_apply 2020-03-11 18:02:43 +01:00
dcache.c fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb() 2019-02-06 17:31:34 +01:00
dcookies.c
direct-io.c fs: direct-io: fix missing sdio->boundary 2021-04-16 11:57:48 +02:00
drop_caches.c fs: avoid softlockups in s_inodes iterators 2020-01-12 12:11:59 +01:00
eventfd.c
eventpoll.c ep_create_wakeup_source(): dentry name can change under you... 2020-10-14 09:51:09 +02:00
exec.c exec: Force single empty string when argv is empty 2022-06-06 08:20:57 +02:00
fcntl.c
fhandle.c
file.c fget: clarify and improve __fget_files() implementation 2022-03-02 11:34:00 +01:00
file_table.c fs: add fget_many() and fput_many() 2021-12-08 08:46:55 +01:00
filesystems.c fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once() 2020-04-24 08:00:43 +02:00
fs-writeback.c fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages 2022-06-14 16:53:52 +02:00
fs_pin.c
fs_struct.c
inode.c fs: fix UAF/GPF bug in nilfs_mdt_destroy 2022-10-26 13:16:51 +02:00
internal.h
ioctl.c vfs: swap names of {do,vfs}_clone_file_range() 2018-11-10 07:48:33 -08:00
iomap.c iomap: Fix pipe page leakage during splicing 2019-12-17 20:38:57 +01:00
Kconfig
Kconfig.binfmt
libfs.c libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value 2023-01-18 09:26:10 +01:00
locks.c locks: print unsigned ino in /proc/locks 2020-01-09 10:17:55 +01:00
Makefile
mbcache.c
mount.h
mpage.c
namei.c mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-25 17:36:55 +01:00
namespace.c VFS: Fix memory leak caused by concurrently mounting fs with subtype 2022-05-15 19:40:27 +02:00
no-block.c
nsfs.c
open.c cifs_atomic_open(): fix double-put on late allocation failure 2020-03-20 10:54:16 +01:00
pipe.c pipe: increase minimum default pipe size to 2 pages 2021-08-15 13:03:31 +02:00
pnode.c pnode: terminate at peers of source 2023-01-18 09:26:35 +01:00
pnode.h
posix_acl.c
proc_namespace.c
read_write.c vfs: avoid problematic remapping requests into partial EOF block 2019-12-01 09:13:51 +01:00
readdir.c readdir: make sure to verify directory entry for legacy interfaces too 2021-04-28 12:08:41 +02:00
select.c kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data() 2021-03-24 11:05:05 +01:00
seq_file.c seq_file: disallow extremely large seq buffer allocations 2021-07-20 16:17:55 +02:00
signalfd.c signalfd: use wake_up_pollfree() 2021-12-14 10:16:55 +01:00
splice.c Revert "fs: check FMODE_LSEEK to control internal pipe splicing" 2022-10-26 13:16:56 +02:00
stack.c
stat.c stat: fix inconsistency between struct stat and struct compat_stat 2022-04-27 13:15:30 +02:00
statfs.c vfs: Fix EOVERFLOW testing in put_compat_statfs64 2019-10-11 18:18:48 +02:00
super.c vfs: make freeze_super abort when sync_filesystem returns error 2022-02-23 11:57:33 +01:00
sync.c
timerfd.c
userfaultfd.c userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK 2020-01-04 13:59:58 +01:00
utimes.c
xattr.c fs: don't audit the capability check in simple_xattr_list() 2023-01-18 09:26:09 +01:00