Peter Xu
5fe446d24a
BACKPORT: userfaultfd: wp: declare _UFFDIO_WRITEPROTECT conditionally
...
Only declare _UFFDIO_WRITEPROTECT if the user specified
UFFDIO_REGISTER_MODE_WP and if all the checks passed. Then when the user
registers regions with shmem/hugetlbfs we won't expose the new ioctl to
them. Even with complete anonymous memory range, we'll only expose the
new WP ioctl bit if the register mode has MODE_WP.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Bobby Powers <bobbypowers@gmail.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Denis Plotnikov <dplotnikov@virtuozzo.com>
Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: Martin Cracauer <cracauer@cons.org>
Cc: Marty McFadden <mcfadden8@llnl.gov>
Cc: Maya Gokhale <gokhale2@llnl.gov>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Shaohua Li <shli@fb.com>
Link: http://lkml.kernel.org/r/20200220163112.11409-18-peterx@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 14819305e09fe4fda546f0dfa12134c8e5366616)
[ Kalesh Singh - resolve conflicts in fs/userfaultfd.c ]
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Reported-by: kernel test robot <lkp@intel.com> [1]
[1] https://lore.kernel.org/r/202201170247.Cir3moOM-lkp@intel.com/
Bug: 160737021
Bug: 169683130
Change-Id: I4f205e642f5f0e5824a43303aab30626cce3ddcb
2025-05-18 08:08:42 +00:00
..
9p
This is the 5.4.276 stable release
2024-05-17 15:29:56 +00:00
adfs
affs
affs: don't write overlarge OFS data block size fields
2025-04-10 14:29:42 +02:00
afs
This is the 5.4.291 stable release
2025-03-13 14:53:52 +00:00
autofs
befs
bfs
btrfs
This is the 5.4.291 stable release
2025-03-13 14:53:52 +00:00
cachefiles
cachefiles: fix memory leak in cachefiles_add_cache()
2024-03-06 14:36:10 +00:00
ceph
This is the 5.4.285 stable release
2024-11-09 11:29:17 +00:00
cifs
Merge 5.4.287 into android11-5.4-lts
2024-12-16 10:50:16 +00:00
coda
configfs
cramfs
crypto
debugfs
devpts
dlm
ecryptfs
This is the 5.4.278 stable release
2024-06-18 14:18:49 +00:00
efivarfs
efivarfs: Fix error on non-existent file
2025-01-09 13:23:28 +01:00
efs
erofs
Merge tag 'ASB-2025-02-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-02-06 22:53:05 +02:00
exfat
Merge branch 'for-kernel-version-from-4.1.0' of https://github.com/namjaejeon/linux-exfat-oot into android13-5.4-lahaina
2024-04-16 00:03:08 +03:00
exportfs
ext2
ext4
This is the 5.4.290 stable release
2025-02-05 17:00:16 +00:00
f2fs
Merge tag 'ASB-2025-04-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-04-23 17:49:35 +03:00
fat
fat: fix uninitialized variable
2024-11-08 16:20:47 +01:00
freevxfs
fscache
fuse
Merge tag 'ASB-2025-05-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-05-18 08:00:20 +00:00
gfs2
This is the 5.4.290 stable release
2025-02-05 17:00:16 +00:00
hfs
This is the 5.4.290 stable release
2025-02-05 17:00:16 +00:00
hfsplus
Merge 5.4.287 into android11-5.4-lts
2024-12-16 10:50:16 +00:00
hostfs
hpfs
hugetlbfs
fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super
2024-03-06 14:36:10 +00:00
incfs
iomap
This is the 5.4.270 stable release
2024-03-05 14:53:04 +00:00
isofs
isofs: fix KMSAN uninit-value bug in do_isofs_readdir()
2025-04-10 14:29:41 +02:00
jbd2
jbd2: flush filesystem device before updating tail sequence
2025-02-01 18:18:44 +01:00
jffs2
Merge 5.4.287 into android11-5.4-lts
2024-12-16 10:50:16 +00:00
jfs
This is the 5.4.292 stable release
2025-04-11 08:16:05 +00:00
kernfs
This is the 5.4.269 stable release
2024-02-24 15:47:08 +00:00
lockd
minix
nfs
This is the 5.4.289 stable release
2025-01-10 07:30:07 +00:00
nfs_common
nfsd
NFSD: Reset cb_seq_status after NFS4ERR_DELAY
2025-03-13 12:43:01 +01:00
nilfs2
nilfs2: protect access to buffers with no active references
2025-03-13 12:43:18 +01:00
nls
notify
ntfs
ocfs2
This is the 5.4.292 stable release
2025-04-11 08:16:05 +00:00
omfs
openpromfs
openpromfs: finish conversion to the new mount API
2024-06-16 13:28:32 +02:00
orangefs
This is the 5.4.291 stable release
2025-03-13 14:53:52 +00:00
overlayfs
Merge tag 'ASB-2025-02-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-02-06 22:53:05 +02:00
proc
BACKPORT: FROMGIT: userfaultfd: add minor fault registration mode
2025-05-18 08:08:42 +00:00
pstore
Merge tag 'ASB-2024-06-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2024-06-22 17:58:09 +03:00
qnx4
qnx6
quota
quota: flush quota_release_work upon quota writeback
2024-12-14 19:44:42 +01:00
ramfs
reiserfs
romfs
squashfs
This is the 5.4.291 stable release
2025-03-13 14:53:52 +00:00
sysfs
This is the 5.4.275 stable release
2024-05-15 16:00:38 +00:00
sysv
sysv: don't call sb_bread() with pointers_lock held
2024-04-13 12:51:38 +02:00
tracefs
ubifs
This is the 5.4.291 stable release
2025-03-13 14:53:52 +00:00
udf
udf: Fix use of check_add_overflow() with mixed type arguments
2025-03-13 12:42:51 +01:00
ufs
unicode
Revert "unicode: Don't special case ignorable code points"
2024-12-14 19:44:55 +01:00
verity
xfs
This is the 5.4.288 stable release
2024-12-27 16:16:36 +00:00
aio.c
BACKPORT: FROMLIST: Revert "mremap: don't allow MREMAP_DONTUNMAP on special_mappings and aio"
2025-05-18 08:08:42 +00:00
anon_inodes.c
UPSTREAM: fs: anon_inodes: rephrase to appropriate kernel-doc
2025-02-20 04:17:46 +02:00
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c
binfmt_elf_fdpic.c
fs: binfmt_elf_efpic: don't use missing interpreter's properties
2024-09-04 13:14:54 +02:00
binfmt_em86.c
binfmt_flat.c
binfmt_flat: Fix integer overflow bug on 32 bit systems
2025-03-13 12:43:07 +01:00
binfmt_misc.c
binfmt_misc: cleanup on filesystem umount
2024-09-04 13:14:53 +02:00
binfmt_script.c
block_dev.c
block: Don't invalidate pagecache for invalid falloc modes
2024-01-08 11:29:48 +01:00
buffer.c
char_dev.c
compat.c
compat_binfmt_elf.c
compat_ioctl.c
lsm: new security_file_ioctl_compat() hook
2024-02-23 08:25:15 +01:00
coredump.c
d_path.c
dax.c
dcache.c
fs: better handle deep ancestor chains in is_subdir()
2024-07-27 10:38:32 +02:00
dcookies.c
direct-io.c
drop_caches.c
eventfd.c
eventpoll.c
This is the 5.4.289 stable release
2025-01-10 07:30:07 +00:00
exec.c
This is the 5.4.285 stable release
2024-11-09 11:29:17 +00:00
fcntl.c
fs: Fix file_set_fowner LSM hook inconsistencies
2024-11-08 16:20:34 +01:00
fhandle.c
do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak
2024-03-26 18:22:13 -04:00
file.c
fix bitmap corruption on close_range() with CLOSE_RANGE_UNSHARE
2024-09-04 13:14:50 +02:00
file_table.c
filesystems.c
fs-writeback.c
fs_context.c
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
inode.c
This is the 5.4.285 stable release
2024-11-09 11:29:17 +00:00
internal.h
io_uring.c
This is the 5.4.278 stable release
2024-06-18 14:18:49 +00:00
ioctl.c
Kconfig
Kconfig.binfmt
libfs.c
UPSTREAM: fs: add LSM-supporting anon-inode interface
2025-02-20 04:17:45 +02:00
locks.c
filelock: Correct the filelock owner in fcntl_setlk/fcntl_setlk64
2024-09-04 13:15:02 +02:00
Makefile
mbcache.c
mount.h
mpage.c
namei.c
This is the 5.4.292 stable release
2025-04-11 08:16:05 +00:00
namespace.c
This is the 5.4.285 stable release
2024-11-09 11:29:17 +00:00
no-block.c
nsfs.c
open.c
This is the 5.4.279 stable release
2024-07-08 13:55:50 +00:00
OWNERS
pipe.c
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
readdir.c
select.c
fs/select: rework stack allocation hack for clang
2024-03-26 18:22:13 -04:00
seq_file.c
signalfd.c
splice.c
stack.c
stat.c
statfs.c
super.c
fs: explicitly unregister per-superblock BDIs
2024-11-08 16:20:26 +01:00
sync.c
This is the 5.4.263 stable release
2023-12-11 12:08:17 +00:00
timerfd.c
userfaultfd.c
BACKPORT: userfaultfd: wp: declare _UFFDIO_WRITEPROTECT conditionally
2025-05-18 08:08:42 +00:00
utimes.c
xattr.c