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Jeff Layton 08683ece6e nfsd: fix handling of readdir in v4root vs. mount upcall timeout 
commit cad853374d upstream.

If v4 READDIR operation hits a mountpoint and gets back an error,
then it will include that entry in the reply and set RDATTR_ERROR for it
to the error.

That's fine for "normal" exported filesystems, but on the v4root, we
need to be more careful to only expose the existence of dentries that
lead to exports.

If the mountd upcall times out while checking to see whether a
mountpoint on the v4root is exported, then we have no recourse other
than to fail the whole operation.

Cc: Steve Dickson <steved@redhat.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216777
Reported-by: JianHong Yin <yin-jianhong@163.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2023-01-12 12:00:45 +01:00
..
9p 9p: Fix some kernel-doc comments 2022-07-02 18:52:21 +09:00
adfs
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affs affs: use memcpy_to_page and remove replace kmap_atomic() 2022-08-01 19:53:31 +02:00
afs afs: Fix lost servers_outstanding count 2022-12-31 13:26:50 +01:00
autofs autofs: remove unused ino field inode 2022-07-17 17:31:42 -07:00
befs befs: Convert befs_symlink_read_folio() to use a folio 2022-08-02 12:34:03 -04:00
bfs
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btrfs btrfs: fix compat_ro checks against remount 2023-01-12 12:00:44 +01:00
cachefiles cachefiles: make on-demand request distribution fairer 2022-08-31 16:41:10 +01:00
ceph ceph: switch to vfs_inode_has_locks() to fix file lock bug 2023-01-12 12:00:39 +01:00
cifs cifs: refcount only the selected iface during interface update 2023-01-12 12:00:28 +01:00
coda coda: Convert coda_symlink_filler() to use a folio 2022-08-02 12:34:03 -04:00
configfs configfs: fix possible memory leak in configfs_create_dir() 2022-12-31 13:26:08 +01:00
cramfs cramfs: read_mapping_page() is synchronous 2022-08-02 12:34:02 -04:00
crypto fscrypt: fix keyring memory leak on mount failure 2022-11-10 18:17:30 +01:00
debugfs debugfs: fix error when writing negative value to atomic_t debugfs file 2022-12-31 13:25:45 +01:00
devpts
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dlm fs: dlm: retry accept() until -EAGAIN or error returns 2023-01-07 11:15:47 +01:00
ecryptfs
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efivarfs efi: efivars: Fix variable writes without query_variable_store() 2022-10-26 12:22:57 +02:00
efs
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erofs erofs: validate the extent length for uncompressed pclusters 2022-12-31 13:25:46 +01:00
exfat exfat: fix overflow for large capacity partition 2022-09-04 09:38:40 +09:00
exportfs
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ext2 ext2: unbugger ext2_empty_dir() 2023-01-07 11:15:46 +01:00
ext4 ext4: correct inconsistent error msg in nojournal mode 2023-01-12 12:00:29 +01:00
f2fs f2fs: allow to read node block after shutdown 2023-01-04 11:26:31 +01:00
fat Updates to various subsystems which I help look after. lib, ocfs2, 2022-08-07 10:03:24 -07:00
freevxfs freevxfs: Convert vxfs_immed_read_folio() to use a folio 2022-08-02 12:34:03 -04:00
fscache fscache: Fix oops due to race with cookie_lru and use_cookie 2022-12-14 11:40:51 +01:00
fuse fuse: lock inode unconditionally in fuse_fallocate() 2022-12-02 17:43:16 +01:00
gfs2 gfs2: Switch from strlcpy to strscpy 2022-11-26 09:27:55 +01:00
hfs hfs/hfsplus: avoid WARN_ON() for sanity check, use proper error handling 2023-01-12 12:00:42 +01:00
hfsplus hfsplus: fix bug causing custom uid and gid being unable to be assigned with mount 2023-01-04 11:26:29 +01:00
hostfs hostfs: Handle page write errors correctly 2022-08-02 12:34:02 -04:00
hpfs
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hugetlbfs hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param() 2022-12-31 13:26:47 +01:00
iomap iomap: iomap: fix memory corruption when recording errors during writeback 2022-10-21 12:38:36 +02:00
isofs fs/buffer: Combine two submit_bh() and ll_rw_block() arguments 2022-07-14 12:14:32 -06:00
jbd2 jbd2: add miss release buffer head in fc_do_one_pass() 2022-10-21 12:37:49 +02:00
jffs2 This pull request contains fixes for JFFS2, UBI and UBIFS 2022-06-03 14:42:24 -07:00
jfs fs: jfs: fix shift-out-of-bounds in dbDiscardAG 2022-12-31 13:26:40 +01:00
kernfs kernfs: fix use-after-free in __kernfs_remove 2022-11-04 00:00:24 +09:00
ksmbd ksmbd: Fix resource leak in ksmbd_session_rpc_open() 2022-12-31 13:26:28 +01:00
lockd lockd: set other missing fields when unlocking files 2022-12-31 13:25:47 +01:00
minix
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netfs netfs: Fix dodgy maths 2022-11-26 09:27:38 +01:00
nfs nfs: fix possible null-ptr-deref when parsing param 2022-12-31 13:26:46 +01:00
nfs_common
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nfsd nfsd: fix handling of readdir in v4root vs. mount upcall timeout 2023-01-12 12:00:45 +01:00
nilfs2 nilfs2: fix shift-out-of-bounds due to too large exponent of block size 2022-12-31 13:26:41 +01:00
nls
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notify fsnotify: Fix comment typo 2022-07-26 13:38:47 +02:00
ntfs ntfs: check overflow when iterating ATTR_RECORDs 2022-11-26 09:27:56 +01:00
ntfs3 fs/ntfs3: don't hold ni_lock when calling truncate_setsize() 2023-01-12 12:00:40 +01:00
ocfs2 ocfs2: fix memory leak in ocfs2_mount_volume() 2022-12-31 13:25:45 +01:00
omfs
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openpromfs
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orangefs orangefs: Fix kmemleak in orangefs_{kernel,client}_debug_init() 2022-12-31 13:26:48 +01:00
overlayfs ovl: update ->f_iocb_flags when ovl_change_flags() modifies ->f_flags 2023-01-04 11:26:29 +01:00
proc mm: /proc/pid/smaps_rollup: fix no vma's null-deref 2022-10-29 10:08:36 +02:00
pstore pstore/zone: Use GFP_ATOMIC to allocate zone buffer 2023-01-04 11:26:28 +01:00
qnx4
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qnx6
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quota ext4: fix bug_on in __es_tree_search caused by bad quota inode 2023-01-07 11:16:01 +01:00
ramfs
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reiserfs reiserfs: Add missing calls to reiserfs_security_free() 2022-12-31 13:26:52 +01:00
romfs
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smbfs_common
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squashfs squashfs: fix buffer release race condition in readahead code 2022-11-04 00:00:19 +09:00
sysfs
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sysv fs: sysv: Fix sysv_nblocks() returns wrong value 2022-12-31 13:25:47 +01:00
tracefs tracefs: Only clobber mode/uid/gid on remount if asked 2022-09-08 17:10:54 -04:00
ubifs - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
udf udf: Fix extension of the last extent in the file 2023-01-12 12:00:42 +01:00
ufs Folio changes for 6.0 2022-08-03 10:35:43 -07:00
unicode
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vboxsf
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verity fs-verity: mention btrfs support 2022-07-15 23:42:30 -07:00
xfs fs: record I_DIRTY_TIME even if inode already has I_DIRTY_INODE 2022-10-21 12:37:47 +02:00
zonefs zonefs: fix zone report size in __zonefs_io_error() 2022-12-02 17:43:15 +01:00
Kconfig mm: hugetlb_vmemmap: introduce the name HVO 2022-08-08 18:06:42 -07:00
Kconfig.binfmt m68knommu: changes for linux 5.19 2022-05-30 10:56:18 -07:00
Makefile io_uring: move to separate directory 2022-07-24 18:39:10 -06:00
aio.c iov_iter work, part 1 - isolated cleanups and optimizations. 2022-08-03 13:50:22 -07:00
anon_inodes.c
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attr.c vfs: Check the truncate maximum size in inode_newsize_ok() 2022-08-08 10:39:29 -07:00
bad_inode.c
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binfmt_aout.c
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binfmt_elf.c fs/binfmt_elf: Fix memory leak in load_elf_binary() 2022-11-04 00:00:20 +09:00
binfmt_elf_fdpic.c binfmt: Fix error return code in load_elf_fdpic_binary() 2023-01-04 11:26:29 +01:00
binfmt_elf_test.c
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binfmt_flat.c
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binfmt_misc.c binfmt_misc: fix shift-out-of-bounds in check_special_flags 2022-12-31 13:26:40 +01:00
binfmt_script.c
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buffer.c mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-26 09:27:56 +01:00
char_dev.c chardev: fix error handling in cdev_device_add() 2022-12-31 13:26:27 +01:00
compat_binfmt_elf.c
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coredump.c fix coredump breakage 2022-10-12 09:39:04 +02:00
d_path.c
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dax.c Merge branch 'for-6.0/dax' into libnvdimm-fixes 2022-09-24 18:14:12 -07:00
dcache.c dcache: move the DCACHE_OP_COMPARE case out of the __d_lookup_rcu loop 2022-08-17 14:33:03 -07:00
direct-io.c iov_iter: advancing variants of iov_iter_get_pages{,_alloc}() 2022-08-08 22:37:22 -04:00
drop_caches.c
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eventfd.c eventfd: provide a eventfd_signal_mask() helper 2023-01-04 11:26:29 +01:00
eventpoll.c eventpoll: add EPOLL_URING_WAKE poll wakeup flag 2023-01-04 11:26:29 +01:00
exec.c exec: Copy oldsighand->action under spin-lock 2022-11-04 00:00:21 +09:00
fcntl.c keep iocb_flags() result cached in struct file 2022-06-10 16:10:23 -04:00
fhandle.c
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file.c fs: use acquire ordering in __fget_light() 2022-12-14 11:40:46 +01:00
file_table.c locks: fix TOCTOU race when granting write lease 2022-10-21 12:38:31 +02:00
filesystems.c
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fs-writeback.c fs: do not update freeing inode i_io_list 2022-12-02 17:43:07 +01:00
fs_context.c
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fs_parser.c ext4: journal_path mount options should follow links 2023-01-07 11:16:02 +01:00
fs_pin.c
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fs_struct.c
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fs_types.c
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fsopen.c
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init.c
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inode.c fs: fix UAF/GPF bug in nilfs_mdt_destroy 2022-10-12 09:39:03 +02:00
internal.h locks: fix TOCTOU race when granting write lease 2022-10-21 12:38:31 +02:00
ioctl.c
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kernel_read_file.c fs/kernel_read_file: allow to read files up-to ssize_t 2022-06-16 19:58:21 -07:00
libfs.c libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value 2022-12-31 13:25:45 +01:00
locks.c filelock: new helper: vfs_inode_has_locks 2023-01-12 12:00:38 +01:00
mbcache.c ext4: fix deadlock due to mbcache entry corruption 2023-01-07 11:16:04 +01:00
mount.h switch try_to_unlazy_next() to __legitimize_mnt() 2022-07-05 16:18:21 -04:00
mpage.c Folio changes for 6.0 2022-08-03 10:35:43 -07:00
namei.c mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-26 09:27:56 +01:00
namespace.c fs: require CAP_SYS_ADMIN in target namespace for idmapped mounts 2022-08-17 11:27:11 +02:00
no-block.c
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nsfs.c
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open.c locks: fix TOCTOU race when granting write lease 2022-10-21 12:38:31 +02:00
pipe.c Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
pnode.c pnode: terminate at peers of source 2023-01-04 11:26:30 +01:00
pnode.h
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posix_acl.c acl: return EOPNOTSUPP in posix_acl_fix_xattr_common() 2022-10-21 12:37:59 +02:00
proc_namespace.c vfs: escape hash as well 2022-06-28 13:58:05 -04:00
read_write.c vfs: fix copy_file_range() averts filesystem freeze protection 2022-12-08 11:30:16 +01:00
readdir.c
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remap_range.c - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
select.c
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seq_file.c
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signalfd.c
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splice.c iter_to_pipe(): switch to advancing variant of iov_iter_get_pages() 2022-08-08 22:37:23 -04:00
stack.c
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stat.c RISC-V Patches for the 5.19 Merge Window, Part 1 2022-05-31 14:10:54 -07:00
statfs.c
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super.c fscrypt: fix keyring memory leak on mount failure 2022-11-10 18:17:30 +01:00
sync.c
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sysctls.c
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timerfd.c
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userfaultfd.c userfaultfd: open userfaultfds with O_RDONLY 2022-10-21 12:37:58 +02:00
utimes.c
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xattr.c fs: don't audit the capability check in simple_xattr_list() 2022-12-31 13:25:42 +01:00