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linux-stable/fs
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Tejun Heo 18493bac1a kernfs: fix ino wrap-around detection 
commit e23f568aa6 upstream.

When the 32bit ino wraps around, kernfs increments the generation
number to distinguish reused ino instances.  The wrap-around detection
tests whether the allocated ino is lower than what the cursor but the
cursor is pointing to the next ino to allocate so the condition never
triggers.

Fix it by remembering the last ino and comparing against that.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes: 4a3ef68aca ("kernfs: implement i_generation")
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-13 08:52:43 +01:00
..
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
afs afs: Fix leak in afs_lookup_cell_rcu() 2019-09-10 10:33:52 +01:00
autofs autofs: fix a leak in autofs_expire_indirect() 2019-12-13 08:51:01 +01:00
befs
bfs bfs: add sanity check at bfs_fill_super() 2018-12-01 09:37:27 +01:00
btrfs btrfs: only track ref_heads in delayed_ref_updates 2019-12-05 09:20:23 +01:00
cachefiles fscache, cachefiles: remove redundant variable 'cache' 2018-12-17 09:24:40 +01:00
ceph ceph: return -EINVAL if given fsc mount option on kernel w/o support 2019-12-05 09:19:45 +01:00
cifs CIFS: Fix SMB2 oplock break processing 2019-12-13 08:52:42 +01:00
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_lookup_interpose(): lower_dentry->d_parent is not stable either 2019-11-20 18:45:18 +01:00
efivarfs efivars: Call guid_parse() against guid_t type of variable 2018-07-22 14:13:44 +02:00
efs
exofs exofs_mount(): fix leaks on failure exits 2019-12-05 09:20:32 +01:00
exportfs exportfs_decode_fh(): negative pinned may become positive without the parent locked 2019-12-13 08:51:02 +01:00
ext2 ext2: Fix underflow in ext2_max_size() 2019-03-23 20:10:03 +01:00
ext4 ext4: add more paranoia checking in ext4_expand_extra_isize handling 2019-12-05 09:21:32 +01:00
f2fs f2fs: fix to allow node segment for GC by ioctl path 2019-12-13 08:51:51 +01:00
fat fat: work around race with userspace's read via blockdev while mounting 2019-10-07 18:57:14 +02:00
freevxfs
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: take jdata unstuff into account in do_grow 2019-12-05 09:20:36 +01:00
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: introduce jbd2_inode dirty range scoping 2019-07-28 08:29:29 +02:00
jffs2 jffs2: fix use-after-free on symlink traversal 2019-05-08 07:21:48 +02:00
jfs Just one jfs patch for 4.19 2018-08-15 22:47:23 -07:00
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
nfs NFSv4.x: fix lock recovery during delegation recall 2019-11-24 08:20:24 +01:00
nfs_common
nfsd nfsd: Return EPERM, not EACCES, in some SETATTR cases 2019-12-13 08:52:26 +01:00
nilfs2 nilfs2: convert to SPDX license tags 2018-09-04 16:45:02 -07:00
nls
notify memcg, fsnotify: no oom-kill for remote memcg charging 2019-07-31 07:27:08 +02:00
ntfs ntfs: mft: remove VLA usage 2018-08-17 16:20:27 -07:00
ocfs2 ocfs2: clear journal dirty flag after shutdown journal 2019-12-05 09:20:56 +01:00
omfs
openpromfs
orangefs orangefs: rate limit the client not running info message 2019-11-24 08:20:57 +01:00
overlayfs ovl: filter of trusted xattr results in audit 2019-10-05 13:10:08 +02:00
proc proc/vmcore: Fix i386 build error of missing copy_oldmem_page_encrypted() 2019-11-24 08:20:45 +01:00
pstore pstore/ram: Avoid NULL deref in ftrace merging failure path 2019-12-13 08:52:24 +01:00
qnx4
qnx6
quota quota: fix a problem about transfer quota 2019-07-14 08:11:15 +02:00
ramfs
reiserfs reiserfs: propagate errors from fill_with_dentries() properly 2018-11-27 16:12:59 +01:00
romfs
squashfs Squashfs: Compute expected length from inode size rather than block length 2018-08-02 09:34:02 -07:00
sysfs Driver core patches for 4.19-rc1 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 default compression selection in ubifs 2019-12-05 09:20:09 +01:00
udf udf: Fix crash during mount 2019-11-20 18:46:04 +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: extent shifting doesn't fully invalidate page cache 2019-12-13 08:51:29 +01:00
aio.c Fix aio_poll() races 2019-05-02 09:58:59 +02:00
anon_inodes.c anon_inode_getfile(): switch to alloc_file_pseudo() 2018-07-12 10:04:27 -04:00
attr.c
bad_inode.c get rid of 'opened' argument of ->atomic_open() - part 3 2018-07-12 10:04:20 -04:00
binfmt_aout.c
binfmt_elf.c binfmt_elf: Do not move brk for INTERP-less ET_EXEC 2019-10-05 13:10:06 +02:00
binfmt_elf_fdpic.c
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
binfmt_script.c exec: load_script: Do not exec truncated interpreter path 2019-11-06 13:05:37 +01:00
block_dev.c block: fix the return errno for direct IO 2019-04-17 08:38:52 +02:00
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: add additional check for minor range overlap 2019-05-31 06:46:27 -07:00
compat.c
compat_binfmt_elf.c
compat_ioctl.c media: dvb: fix compat ioctl translation 2019-11-20 18:46:33 +01:00
coredump.c
d_path.c
dax.c dax: dax_layout_busy_page() should not unmap cow pages 2019-08-16 10:12:52 +02:00
dcache.c dcache: sort the freeing-without-RCU-delay mess for good. 2019-05-25 18:23:26 +02:00
dcookies.c
direct-io.c direct-io: allow direct writes to empty inodes 2019-03-05 17:58:50 +01:00
drop_caches.c fs/drop_caches.c: avoid softlockups in drop_pagecache_sb() 2019-03-13 14:02:32 -07:00
eventfd.c
eventpoll.c fs/epoll: drop ovflist branch prediction 2019-02-12 19:47:19 +01:00
exec.c sched/fair: Don't free p->numa_faults with concurrent readers 2019-08-04 09:30:56 +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
file.c fs/file.c: initialize init_files.resize_wait 2019-04-05 22:32:59 +02:00
file_table.c overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
filesystems.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
fs_pin.c
fs_struct.c
inode.c Abort file_remove_privs() for non-reg. files 2019-06-22 08:15:21 +02:00
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: readpages doesn't zero page tail beyond EOF 2019-12-13 08:51:32 +01:00
Kconfig
Kconfig.binfmt kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
libfs.c Fix the locking in dcache_readdir() and friends 2019-10-17 13:45:35 -07:00
locks.c overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
Makefile
mbcache.c
mount.h
mpage.c mpage: mpage_readpages() should submit IO as read-ahead 2018-08-17 16:20:29 -07:00
namei.c Revert "vfs: Allow userns root to call mknod on owned filesystems." 2018-12-29 13:37:54 +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 access: avoid the RCU grace period for the temporary subjective credentials 2019-07-31 07:27:11 +02:00
pipe.c fs: prevent page refcount overflow in pipe_buf_get 2019-05-04 09:20:11 +02:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c vfs: avoid problematic remapping requests into partial EOF block 2019-12-01 09:17:04 +01:00
readdir.c
select.c
seq_file.c seq_file: fix problem when seeking mid-record 2019-08-25 10:47:43 +02:00
signalfd.c
splice.c fs: prevent page refcount overflow in pipe_buf_get 2019-05-04 09:20:11 +02:00
stack.c
stat.c
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
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_release: always remove uffd flags and clear vm_userfaultfd_ctx 2019-08-29 08:28:52 +02:00
utimes.c
xattr.c sysfs: Do not return POSIX ACL xattrs via listxattr 2018-09-18 07:30:48 -04:00