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linux/fs
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Changwei Ge 13380f2b41 ocfs2: no need try to truncate file beyond i_size 
commit 783fda856e upstream.

Linux fallocate(2) with FALLOC_FL_PUNCH_HOLE mode set, its offset can
exceed the inode size.  Ocfs2 now doesn't allow that offset beyond inode
size.  This restriction is not necessary and violates fallocate(2)
semantics.

If fallocate(2) offset is beyond inode size, just return success and do
nothing further.

Otherwise, ocfs2 will crash the kernel.

  kernel BUG at fs/ocfs2//alloc.c:7264!
   ocfs2_truncate_inline+0x20f/0x360 [ocfs2]
   ocfs2_remove_inode_range+0x23c/0xcb0 [ocfs2]
   __ocfs2_change_file_space+0x4a5/0x650 [ocfs2]
   ocfs2_fallocate+0x83/0xa0 [ocfs2]
   vfs_fallocate+0x148/0x230
   SyS_fallocate+0x48/0x80
   do_syscall_64+0x79/0x170

Signed-off-by: Changwei Ge <chge@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200407082754.17565-1-chge@linux.alibaba.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-17 10:48:51 +02:00
..
9p
9p: avoid attaching writeback_fid on mmap with type PRIVATE
2019-10-11 18:21:13 +02:00
adfs
fs/adfs: super: fix use-after-free bug
2019-08-06 19:06:49 +02:00
affs
affs: fix a memory leak in affs_remount
2020-01-27 14:51:21 +01:00
afs
afs: Fix some tracing details
2020-04-02 15:28:19 +02:00
autofs
autofs: fix a leak in autofs_expire_indirect()
2019-12-13 08:51:01 +01:00
befs
fix a series of Documentation/ broken file name references
2018-06-15 18:10:01 -03:00
bfs
bfs: add sanity check at bfs_fill_super()
2018-12-01 09:37:27 +01:00
btrfs
btrfs: fix missing semaphore unlock in btrfs_sync_file
2020-04-17 10:48:49 +02:00
cachefiles
fscache, cachefiles: remove redundant variable 'cache'
2018-12-17 09:24:40 +01:00
ceph
ceph: canonicalize server path in place
2020-04-13 10:45:12 +02:00
cifs
CIFS: Fix bug which the return value by asynchronous read is error
2020-04-17 10:48:48 +02:00
coda
coda: add error handling for fget
2019-08-06 19:06:51 +02:00
configfs
configfs: fix a deadlock in configfs_symlink()
2019-11-12 19:20:47 +01:00
cramfs
Cramfs: fix abad comparison when wrap-arounds occur
2018-11-13 11:08:55 -08:00
crypto
fscrypt: clean up some BUG_ON()s in block encryption/decryption
2019-07-26 09:14:02 +02:00
debugfs
debugfs: fix use-after-free on symlink traversal
2019-05-08 07:21:48 +02:00
devpts
fs/devpts: always delete dcache dentry-s in dput()
2019-03-23 20:09:59 +01:00
dlm
dlm: fix invalid cluster name warning
2019-12-13 08:52:23 +01:00
ecryptfs
ecryptfs: replace BUG_ON with error handling code
2020-02-28 16:38:59 +01:00
efivarfs
efivars: Call guid_parse() against guid_t type of variable
2018-07-22 14:13:44 +02:00
efs
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
exofs
exofs_mount(): fix leaks on failure exits
2019-12-05 09:20:32 +01:00
exportfs
exportfs: fix 'passing zero to ERR_PTR()' warning
2020-01-27 14:50:02 +01:00
ext2
ext2: Adjust indentation in ext2_fill_super
2020-02-11 04:34:12 -08:00
ext4
ext4: fix a data race at inode->i_blocks
2020-04-17 10:48:51 +02:00
f2fs
f2fs: fix memleak of kobject
2020-02-24 08:34:49 +01:00
fat
fat: fix uninit-memory access for partial initialized inode
2020-03-11 14:15:01 +01:00
freevxfs
freevxfs_lookup(): use d_splice_alias()
2018-05-22 14:27:51 -04:00
fscache
fscache: fix race between enablement and dropping of object
2018-12-17 09:24:40 +01:00
fuse
fuse: verify attributes
2019-12-13 08:52:36 +01:00
gfs2
gfs2: Don't demote a glock until its revokes are written
2020-04-17 10:48:41 +02:00
hfs
fs/hfs/extent.c: fix array out of bounds read of array extent
2019-12-01 09:17:10 +01:00
hfsplus
hfsplus: update timestamps on truncate()
2019-12-01 09:17:09 +01:00
hostfs
vfs: discard ATTR_ATTR_FLAG
2018-08-17 16:20:28 -07:00
hpfs
hpfs: remove unnecessary checks on the value of r when assigning error code
2018-08-25 12:42:33 -07:00
hugetlbfs
hugetlb: use same fault hash key for shared and private mappings
2019-05-22 07:37:40 +02:00
isofs
isofs: reject hardware sector size > 2048 bytes
2018-08-21 11:37:41 +02:00
jbd2
jbd2: fix data races at struct journal_head
2020-03-20 11:55:56 +01:00
jffs2
jffs2: fix use-after-free on symlink traversal
2019-05-08 07:21:48 +02:00
jfs
jfs: fix bogus variable self-initialization
2020-01-27 14:50:33 +01:00
kernfs
kernfs: fix ino wrap-around detection
2019-12-13 08:52:43 +01:00
lockd
lockd: fix decoding of TEST results
2019-12-13 08:51:59 +01:00
minix
minix_lookup: use d_splice_alias()
2018-05-22 14:27:52 -04:00
nfs
NFS: Fix a page leak in nfs_destroy_unlinked_subrequests()
2020-04-17 10:48:51 +02:00
nfs_common
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
nfsd
nfsd: Return the correct number of bytes written to the file
2020-02-11 04:34:13 -08:00
nilfs2
nilfs2: convert to SPDX license tags
2018-09-04 16:45:02 -07:00
nls
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
notify
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:17:20 +01:00
ntfs
ntfs: mft: remove VLA usage
2018-08-17 16:20:27 -07:00
ocfs2
ocfs2: no need try to truncate file beyond i_size
2020-04-17 10:48:51 +02:00
omfs
omfs_lookup(): report IO errors, use d_splice_alias()
2018-05-22 14:27:58 -04:00
openpromfs
openpromfs: switch to d_splice_alias()
2018-05-22 14:27:57 -04:00
orangefs
help_next should increase position index
2020-02-24 08:34:53 +01:00
overlayfs
ovl: fix wrong WARN_ON() in ovl_cache_update_ino()
2020-02-11 04:34:02 -08:00
proc
mm, thp, proc: report THP eligibility for each vma
2019-12-17 20:35:45 +01:00
pstore
pstore: pstore_ftrace_seq_next should increase position index
2020-04-17 10:48:47 +02:00
qnx4
qnx4_lookup: use d_splice_alias()
2018-05-22 14:27:52 -04:00
qnx6
qnx6_lookup: switch to d_splice_alias()
2018-05-22 14:27:54 -04:00
quota
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:17:20 +01:00
ramfs
mm: make pagevec_lookup() update index
2017-09-06 17:27:26 -07:00
reiserfs
reiserfs: prevent NULL pointer dereference in reiserfs_insert_item()
2020-02-24 08:34:52 +01:00
romfs
romfs_lookup: switch to d_splice_alias()
2018-05-22 14:27:55 -04:00
squashfs
Squashfs: Compute expected length from inode size rather than block length
2018-08-02 09:34:02 -07:00
sysfs
Merge tag 'driver-core-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2018-08-18 11:44:53 -07:00
sysv
sysv: return 'err' instead of 0 in __sysv_write_inode
2018-12-17 09:24:30 +01:00
tracefs
tracefs: Annotate tracefs_ops with __ro_after_init
2018-07-31 11:32:44 -04:00
ubifs
ubifs: Fix deadlock in concurrent bulk-read and writepage
2020-02-11 04:34:00 -08:00
udf
udf: Fix free space reporting for metadata and virtual partitions
2020-02-24 08:34:45 +01:00
ufs
ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour
2019-05-25 18:23:46 +02:00
xfs
xfs: Sanity check flags of Q_XQUOTARM call
2020-01-27 14:49:51 +01:00
aio.c
aio: prevent potential eventfd recursion on poll
2020-02-11 04:34:08 -08:00
anon_inodes.c
anon_inode_getfile(): switch to alloc_file_pseudo()
2018-07-12 10:04:27 -04:00
attr.c
fs: Fix attr.c kernel-doc
2018-07-03 16:44:45 -04:00
bad_inode.c
get rid of 'opened' argument of ->atomic_open() - part 3
2018-07-12 10:04:20 -04:00
binfmt_aout.c
exec: introduce finalize_exec() before start_thread()
2018-04-11 10:28:37 -07:00
binfmt_elf_fdpic.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
binfmt_elf.c
binfmt_elf: Do not move brk for INTERP-less ET_EXEC
2019-10-05 13:10:06 +02:00
binfmt_em86.c
…
binfmt_flat.c
fs/binfmt_flat.c: make load_flat_shared_library() work
2019-07-03 13:14:44 +02:00
binfmt_misc.c
turn filp_clone_open() into inline wrapper for dentry_open()
2018-07-10 23:29:03 -04:00
binfmt_script.c
exec: load_script: Do not exec truncated interpreter path
2019-11-06 13:05:37 +01:00
block_dev.c
bdev: Refresh bdev size for disks without partitioning
2020-01-09 10:19:07 +01:00
buffer.c
fs: fix guard_bio_eod to check for real EOD errors
2019-04-05 22:33:00 +02:00
char_dev.c
chardev: Avoid potential use-after-free in 'chrdev_open()'
2020-01-14 20:06:57 +01:00
compat_binfmt_elf.c
…
compat_ioctl.c
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
2020-01-09 10:19:07 +01:00
compat.c
ncpfs: remove compat functionality
2018-06-05 19:23:26 +02:00
coredump.c
Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-11-17 11:54:55 -08:00
d_path.c
split d_path() and friends into a separate file
2018-03-29 15:07:46 -04:00
dax.c
dax: pass NOWAIT flag to iomap_apply
2020-03-05 16:42:12 +01:00
dcache.c
dcache: sort the freeing-without-RCU-delay mess for good.
2019-05-25 18:23:26 +02:00
dcookies.c
fs: add do_lookup_dcookie() helper; remove in-kernel call to syscall
2018-04-02 20:15:39 +02:00
direct-io.c
direct-io: allow direct writes to empty inodes
2019-03-05 17:58:50 +01:00
drop_caches.c
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:17:20 +01:00
eventfd.c
eventfd: track eventfd_signal() recursion depth
2020-02-11 04:34:08 -08:00
eventpoll.c
fs/epoll: drop ovflist branch prediction
2019-02-12 19:47:19 +01:00
exec.c
signal: Extend exec_id to 64bits
2020-04-17 10:48:47 +02:00
fcntl.c
signal: Don't send signals to tasks that don't exist
2018-08-15 23:03:20 -05:00
fhandle.c
vfs: Copy struct mount.mnt_id to userspace using put_user()
2018-01-15 12:07:51 -08:00
file_table.c
Merge tag 'ovl-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2018-08-21 18:19:09 -07:00
file.c
fs/file.c: initialize init_files.resize_wait
2019-04-05 22:32:59 +02:00
filesystems.c
fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
2020-04-17 10:48:51 +02:00
fs_pin.c
Merge branch 'linus' into locking/core, to resolve conflicts
2017-11-07 10:32:44 +01:00
fs_struct.c
…
fs-writeback.c
cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead
2019-11-12 19:21:20 +01:00
inode.c
futex: Fix inode life-time issue
2020-03-25 08:06:14 +01:00
internal.h
acct_on(): don't mess with freeze protection
2019-05-31 06:46:05 -07:00
ioctl.c
vfs: fix FIGETBSZ ioctl on an overlayfs file
2018-11-21 09:19:14 +01:00
iomap.c
iomap: partially revert 4721a60109 (simulated directio short read on EFAULT)
2019-12-13 08:52:56 +01:00
Kconfig
autofs: remove left-over autofs4 stubs
2018-06-11 08:22:34 -07:00
Kconfig.binfmt
kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt
2018-08-02 08:06:55 +09:00
libfs.c
libfs: fix infoleak in simple_attr_read()
2020-04-02 15:28:21 +02:00
locks.c
locks: print unsigned ino in /proc/locks
2020-01-09 10:19:00 +01:00
Makefile
autofs: remove left-over autofs4 stubs
2018-06-11 08:22:34 -07:00
mbcache.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
mount.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mpage.c
mpage: mpage_readpages() should submit IO as read-ahead
2018-08-17 16:20:29 -07:00
namei.c
namei: only return -ECHILD from follow_dotdot_rcu()
2020-03-05 16:42:20 +01:00
namespace.c
mnt: fix __detach_mounts infinite loop
2018-11-21 09:19:22 +01:00
no-block.c
…
nsfs.c
dcache: sort the freeing-without-RCU-delay mess for good.
2019-05-25 18:23:26 +02:00
open.c
cifs_atomic_open(): fix double-put on late allocation failure
2020-03-18 07:14:21 +01:00
pipe.c
fs: prevent page refcount overflow in pipe_buf_get
2019-05-04 09:20:11 +02:00
pnode.c
mnt: Make propagate_umount less slow for overlapping mount propagation trees
2017-05-23 08:41:17 -05:00
pnode.h
…
posix_acl.c
posix_acl: convert posix_acl.a_refcount from atomic_t to refcount_t
2018-01-02 19:27:28 -08:00
proc_namespace.c
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
read_write.c
vfs: avoid problematic remapping requests into partial EOF block
2019-12-01 09:17:04 +01:00
readdir.c
filldir[64]: remove WARN_ON_ONCE() for bad directory entries
2020-01-04 19:13:26 +01:00
select.c
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
seq_file.c
seq_file: fix problem when seeking mid-record
2019-08-25 10:47:43 +02:00
signalfd.c
Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-16 16:21:50 +09:00
splice.c
splice: only read in as much information as there is pipe buffer space
2019-12-17 20:35:43 +01:00
stack.c
…
stat.c
fs: add do_readlinkat() helper; remove internal call to sys_readlinkat()
2018-04-02 20:15:34 +02:00
statfs.c
vfs: Fix EOVERFLOW testing in put_compat_statfs64
2019-10-11 18:21:39 +02:00
super.c
Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax
2018-08-26 11:48:42 -07:00
sync.c
Merge tag 'xfs-4.17-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2018-04-04 12:44:02 -07:00
timerfd.c
Merge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-08-13 20:56:23 -07:00
userfaultfd.c
userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK
2020-01-04 19:13:18 +01:00
utimes.c
fs: add do_compat_futimesat() helper; remove in-kernel call to compat syscall
2018-04-02 20:15:44 +02:00
xattr.c
sysfs: Do not return POSIX ACL xattrs via listxattr
2018-09-18 07:30:48 -04:00