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Jan Kara 9f75306bea ext4: avoid deadlock when expanding inode size 
commit 2e81a4eeedcaa66e35f58b81e0755b87057ce392 upstream.

When we need to move xattrs into external xattr block, we call
ext4_xattr_block_set() from ext4_expand_extra_isize_ea(). That may end
up calling ext4_mark_inode_dirty() again which will recurse back into
the inode expansion code leading to deadlocks.

Protect from recursion using EXT4_STATE_NO_EXPAND inode flag and move
its management into ext4_expand_extra_isize_ea() since its manipulation
is safe there (due to xattr_sem) from possible races with
ext4_xattr_set_handle() which plays with it as well.

CC: stable@vger.kernel.org   # 4.4.x
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Willy Tarreau <w@1wt.eu>
2017-11-02 07:16:21 +01:00
..
9p
posix_acl: Clear SGID bit when setting file permissions
2017-06-08 00:46:47 +02:00
adfs
…
affs
move d_rcu from overlapping d_child to overlapping d_alias
2015-04-29 10:34:00 +02:00
afs
aio: don't include aio.h in sched.h
2013-05-07 20:16:25 -07:00
autofs4
move d_rcu from overlapping d_child to overlapping d_alias
2015-04-29 10:34:00 +02:00
befs
befs_readdir(): do not increment ->f_pos if filldir tells us to stop
2013-05-31 15:17:56 -04:00
bfs
…
btrfs
Btrfs: fix memory leak in reading btree blocks
2017-06-19 20:28:15 +02:00
cachefiles
…
ceph
move d_rcu from overlapping d_child to overlapping d_alias
2015-04-29 10:34:00 +02:00
cifs
Reset TreeId to zero on SMB2 TREE_CONNECT
2017-06-20 14:04:42 +02:00
coda
move d_rcu from overlapping d_child to overlapping d_alias
2015-04-29 10:34:00 +02:00
configfs
configfs: fix race between dentry put and lookup
2013-11-29 11:11:53 -08:00
cramfs
…
debugfs
move d_rcu from overlapping d_child to overlapping d_alias
2015-04-29 10:34:00 +02:00
devpts
pty: make sure super_block is still valid in final /dev/tty close
2016-02-25 11:57:46 -08:00
dlm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-05-01 14:08:52 -07:00
ecryptfs
ecryptfs: don't allow mmap when the lower fs doesn't support it
2016-08-27 11:40:31 +02:00
efivarfs
efi: Make efivarfs entries immutable by default
2016-03-16 08:41:37 -07:00
efs
…
exofs
ore: Fix wrong math in allocation of per device BIO
2014-02-13 13:48:00 -08:00
exportfs
move d_rcu from overlapping d_child to overlapping d_alias
2015-04-29 10:34:00 +02:00
ext2
posix_acl: Clear SGID bit when setting file permissions
2017-06-08 00:46:47 +02:00
ext3
posix_acl: Clear SGID bit when setting file permissions
2017-06-08 00:46:47 +02:00
ext4
ext4: avoid deadlock when expanding inode size
2017-11-02 07:16:21 +01:00
f2fs
f2fs: set ->owner for debugfs status file's file_operations
2017-06-08 00:46:49 +02:00
fat
fat: fix using uninitialized fields of fat_inode/fsinfo_inode
2017-06-20 14:04:27 +02:00
freevxfs
…
fscache
FS-Cache: fix dereference of NULL user_key_payload
2017-11-02 07:16:17 +01:00
fuse
fuse: initialize the flock flag in fuse_file on allocation
2017-11-01 22:12:44 +01:00
gfs2
gfs2: avoid uninitialized variable warning
2017-06-20 14:04:50 +02:00
hfs
hfs,hfsplus: cache pages correctly between bnode_create and bnode_free
2015-10-01 12:07:34 +02:00
hfsplus
hfs,hfsplus: cache pages correctly between bnode_create and bnode_free
2015-10-01 12:07:34 +02:00
hostfs
hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common()
2017-02-10 11:03:30 +01:00
hpfs
hpfs: update ctime and mtime on directory modification
2015-09-21 10:00:10 -07:00
hppfs
hppfs: get rid of ->fsync()
2013-04-29 15:41:42 -04:00
hugetlbfs
mm: larger stack guard gap, between vmas
2017-06-21 15:42:43 +02:00
isofs
isofs: Do not return EACCES for unknown filesystems
2017-02-10 11:03:30 +01:00
jbd
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2013-05-03 09:56:25 -07:00
jbd2
jbd2: don't leak modified metadata buffers on an aborted journal
2017-06-20 08:02:35 +02:00
jffs2
posix_acl: Clear SGID bit when setting file permissions
2017-06-08 00:46:47 +02:00
jfs
posix_acl: Clear SGID bit when setting file permissions
2017-06-08 00:46:47 +02:00
lockd
lockd: create NSM handles per net namespace
2016-03-03 15:06:20 -08:00
logfs
…
minix
…
ncpfs
move d_rcu from overlapping d_child to overlapping d_alias
2015-04-29 10:34:00 +02:00
nfs
NFSv4: fix getacl ERANGE for some ACL buffer sizes
2017-06-20 14:04:24 +02:00
nfs_common
…
nfsd
nfsd: check for oversized NFSv2/v3 arguments
2017-06-20 14:04:53 +02:00
nilfs2
fs/nilfs2: fix potential underflow in call to crc32_le
2016-08-27 11:40:30 +02:00
nls
…
notify
fsnotify: fix oops in fsnotify_clear_marks_by_group_flags()
2015-08-16 20:51:35 -07:00
ntfs
aio: don't include aio.h in sched.h
2013-05-07 20:16:25 -07:00
ocfs2
ocfs2: fix BUG_ON() in ocfs2_ci_checkpointed()
2017-06-20 08:03:01 +02:00
omfs
fs, omfs: add NULL terminator in the end up the token list
2015-06-05 23:19:54 -07:00
openpromfs
…
proc
mm: larger stack guard gap, between vmas
2017-06-21 15:42:43 +02:00
pstore
pstore/ram: Use memcpy_fromio() to save old buffer
2017-02-10 11:04:02 +01:00
qnx4
…
qnx6
qnx6: qnx6_readdir() has a braino in pos calculation
2013-05-31 15:17:31 -04:00
quota
quota: provide interface for readding allocated space into reserved space
2015-01-29 17:40:57 -08:00
ramfs
…
reiserfs
posix_acl: Clear SGID bit when setting file permissions
2017-06-08 00:46:47 +02:00
romfs
…
squashfs
…
sysfs
…
sysv
fix sysvfs symlinks
2016-02-19 14:22:39 -08:00
ubifs
ubifs: Fix journal replay wrt. xattr nodes
2017-06-08 00:46:56 +02:00
udf
udf: Check output buffer length when converting name to CS0
2016-02-25 11:57:48 -08:00
ufs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-04-30 09:36:50 -07:00
xfs
cancel the setfilesize transation when io error happen
2017-06-20 14:04:32 +02:00
aio.c
AIO: properly check iovec sizes
2016-02-25 11:57:46 -08:00
anon_inodes.c
…
attr.c
fs,userns: Change inode_capable to capable_wrt_inode_uidgid
2014-06-16 13:42:52 -07:00
bad_inode.c
…
binfmt_aout.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-05-01 17:51:54 -07:00
binfmt_elf_fdpic.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-05-02 10:16:16 -07:00
binfmt_elf.c
binfmt_elf: Don't clobber passed executable's file header
2016-02-19 14:22:41 -08:00
binfmt_em86.c
…
binfmt_flat.c
new helper: read_code()
2013-04-29 15:40:23 -04:00
binfmt_misc.c
binfmt_misc: reuse string_unescape_inplace()
2013-04-30 17:04:03 -07:00
binfmt_script.c
…
binfmt_som.c
…
bio-integrity.c
bio-integrity: Fix bio_integrity_verify segment start bug
2014-03-23 21:38:21 -07:00
bio.c
block: Fix bio_copy_data()
2013-10-05 07:13:09 -07:00
block_dev.c
block: protect iterate_bdevs() against concurrent close
2017-06-08 00:46:49 +02:00
buffer.c
vfs: fix data corruption when blocksize < pagesize for mmaped data
2014-11-14 08:47:54 -08:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
Removed unused typedef to avoid "unused local typedef" warnings.
2013-05-04 15:03:05 -04:00
compat.c
aio: don't include aio.h in sched.h
2013-05-07 20:16:25 -07:00
coredump.c
coredump: fix unfreezable coredumping task
2017-02-06 23:33:05 +01:00
coredump.h
…
dcache.c
move the call of __d_drop(anon) into __d_materialise_unique(dentry, anon)
2017-06-20 14:04:14 +02:00
dcookies.c
fs/compat: fix lookup_dcookie() parameter handling
2014-02-13 13:48:00 -08:00
direct-io.c
direct-io: Prevent NULL pointer access in submit_page_section
2017-11-02 07:16:05 +01:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2013-05-01 07:21:43 -07:00
exec.c
fs/exec.c: account for argv/envp pointers
2017-11-01 22:12:42 +01:00
fcntl.c
…
fhandle.c
vfs: read file_handle only once in handle_to_path
2015-06-05 23:20:00 -07:00
file_table.c
get rid of s_files and files_lock
2015-07-03 19:48:08 -07:00
file.c
fs/file.c:fdtable: avoid triggering OOMs from alloc_fdmem
2014-02-22 12:41:25 -08:00
filesystems.c
…
fs_struct.c
…
fs-writeback.c
writeback: fix a subtle race condition in I_DIRTY clearing
2015-01-16 06:59:02 -08:00
generic_acl.c
tmpfs: clear S_ISGID when setting posix ACLs
2017-06-08 00:46:47 +02:00
inode.c
fs: Fix S_NOSEC handling
2015-07-10 10:40:22 -07:00
internal.h
get rid of s_files and files_lock
2015-07-03 19:48:08 -07:00
ioctl.c
…
ioprio.c
block: fix use-after-free in sys_ioprio_get()
2017-06-20 08:02:37 +02:00
Kconfig
…
Kconfig.binfmt
fs: make binfmt support for #! scripts modular and removable
2013-04-30 17:04:04 -07:00
libfs.c
move d_rcu from overlapping d_child to overlapping d_alias
2015-04-29 10:34:00 +02:00
locks.c
locks: fix unlock when fcntl_setlk races with a close
2016-03-09 15:31:53 -08:00
Makefile
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-05-01 17:51:54 -07:00
mbcache.c
…
mount.h
vfs: Is mounted should be testing mnt_ns for NULL or error.
2014-02-06 11:08:16 -08:00
mpage.c
…
namei.c
do_last(): don't let a bogus return value from ->open() et.al. to confuse us
2016-03-03 15:06:24 -08:00
namespace.c
umount: Disallow unprivileged mount force
2015-01-08 09:58:16 -08:00
no-block.c
…
open.c
get rid of s_files and files_lock
2015-07-03 19:48:08 -07:00
pipe.c
pipe: limit the per-user amount of pages allocated in pipes
2016-08-21 23:22:36 +02:00
pnode.c
vfs: Fix invalid ida_remove() call
2013-05-31 15:16:33 -04:00
pnode.h
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-05-01 17:51:54 -07:00
posix_acl.c
posix_acl: Clear SGID bit when setting file permissions
2017-06-08 00:46:47 +02:00
proc_namespace.c
…
read_write.c
fs/compat: fix parameter handling for compat readv/writev syscalls
2014-02-13 13:48:00 -08:00
readdir.c
…
select.c
…
seq_file.c
fs/seq_file: fix out-of-bounds read
2017-02-10 11:03:29 +01:00
signalfd.c
signalfd: fix information leak in signalfd_copyinfo
2015-08-16 20:51:42 -07:00
splice.c
vfs: fix uninitialized flags in splice_to_pipe()
2017-06-20 14:04:20 +02:00
stack.c
…
stat.c
quota: provide interface for readding allocated space into reserved space
2015-01-29 17:40:57 -08:00
statfs.c
vfs: allow O_PATH file descriptors for fstatfs()
2013-10-18 07:45:44 -07:00
super.c
fs/super.c: fix race between freeze_super() and thaw_super()
2017-02-10 11:03:29 +01:00
sync.c
…
timerfd.c
…
utimes.c
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xattr_acl.c
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xattr.c
…