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Ross Lagerwall 1f39e518cf cifs: Limit memory used by lock request calls to a page 
[ Upstream commit 92a8109e4d3a34fb6b115c9098b51767dc933444 ]

The code tries to allocate a contiguous buffer with a size supplied by
the server (maxBuf). This could fail if memory is fragmented since it
results in high order allocations for commonly used server
implementations. It is also wasteful since there are probably
few locks in the usual case. Limit the buffer to be no larger than a
page to avoid memory allocation failures due to fragmentation.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-02-20 10:13:21 +01:00
..
9p
v9fs_dir_readdir: fix double-free on p9stat_read error
2018-12-01 09:46:33 +01:00
adfs
…
affs
affs_lookup(): close a race with affs_remove_link()
2018-05-30 07:48:51 +02:00
afs
afs: Fix afs_kill_pages()
2017-12-20 10:04:56 +01:00
autofs4
autofs: fix autofs_sbi() does not check super block type
2018-09-19 22:49:00 +02:00
befs
…
bfs
bfs: add sanity check at bfs_fill_super()
2018-12-01 09:46:33 +01:00
btrfs
btrfs: wait on ordered extents on abort cleanup
2019-01-26 09:42:50 +01:00
cachefiles
fscache, cachefiles: remove redundant variable 'cache'
2018-12-17 21:55:12 +01:00
ceph
ceph: don't update importing cap's mseq when handing cap export
2019-01-13 10:05:33 +01:00
cifs
cifs: Limit memory used by lock request calls to a page
2019-02-20 10:13:21 +01:00
coda
coda: fix 'kernel memory exposure attempt' in fsync
2017-11-24 08:32:25 +01:00
configfs
configfs: replace strncpy with memcpy
2018-11-21 09:27:44 +01:00
cramfs
Cramfs: fix abad comparison when wrap-arounds occur
2018-11-21 09:27:37 +01:00
debugfs
debugfs: fix debugfs_rename parameter checking
2019-02-20 10:13:18 +01:00
devpts
devpts: clean up interface to pty drivers
2016-08-16 09:30:49 +02:00
dlm
dlm: Don't swamp the CPU with callbacks queued during recovery
2019-02-20 10:13:04 +01:00
ecryptfs
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
efivarfs
efi: Make efivarfs entries immutable by default
2016-03-03 15:07:09 -08:00
efs
…
exofs
fs/exofs: fix potential memory leak in mount option parsing
2018-11-27 16:08:00 +01:00
exportfs
exportfs: do not read dentry after free
2018-12-17 21:55:10 +01:00
ext2
ext2: fix potential use after free
2018-12-13 09:21:27 +01:00
ext4
ext4: fix a potential fiemap/page fault deadlock w/ inline_data
2019-01-16 22:16:12 +01:00
f2fs
f2fs: fix wrong return value of f2fs_acl_create
2019-02-20 10:13:06 +01:00
fat
fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters()
2018-11-10 07:41:40 -08:00
freevxfs
…
fscache
fscache: fix race between enablement and dropping of object
2018-12-17 21:55:11 +01:00
fuse
fuse: handle zero sized retrieve correctly
2019-02-20 10:13:16 +01:00
gfs2
gfs2: Revert "Fix loop in gfs2_rbm_find"
2019-02-06 19:43:07 +01:00
hfs
hfs: do not free node before using
2018-12-17 21:55:12 +01:00
hfsplus
hfsplus: do not free node before using
2018-12-17 21:55:12 +01:00
hostfs
hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common()
2016-09-30 10:18:39 +02:00
hpfs
hpfs: implement the show_options method
2016-06-01 12:15:54 -07:00
hugetlbfs
hugetlbfs: fix bug in pgoff overflow checking
2018-12-17 21:55:15 +01:00
isofs
isofs: fix timestamps beyond 2027
2017-11-30 08:37:20 +00:00
jbd2
jbd2: fix use after free in jbd2_log_do_checkpoint()
2018-11-21 09:27:34 +01:00
jffs2
jffs2: Fix use of uninitialized delayed_work, lockdep breakage
2019-01-26 09:42:53 +01:00
jfs
jfs: Fix inconsistency between memory allocation and ea_buf->max_size
2018-08-09 12:19:28 +02:00
kernfs
kernfs: Replace strncpy with memcpy
2018-12-13 09:21:29 +01:00
lockd
lockd: fix access beyond unterminated strings in prints
2018-11-21 09:27:36 +01:00
logfs
mm, fs: introduce mapping_gfp_constraint()
2015-11-06 17:50:42 -08:00
minix
…
ncpfs
staging: ncpfs: memory corruption in ncp_read_kernel()
2018-03-28 18:40:15 +02:00
nfs
NFS: nfs_compare_mount_options always compare auth flavors.
2019-02-20 10:13:12 +01:00
nfs_common
lockd: fix "list_add double add" caused by legacy signal interface
2018-02-03 17:04:28 +01:00
nfsd
nfsd4: fix crash on writing v4_end_grace before nfsd startup
2019-02-20 10:13:07 +01:00
nilfs2
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
nls
…
notify
fanotify: fix logic of events on child
2018-04-24 09:32:11 +02:00
ntfs
mm, fs: introduce mapping_gfp_constraint()
2015-11-06 17:50:42 -08:00
ocfs2
ocfs2: don't clear bh uptodate for block read
2019-02-20 10:13:13 +01:00
omfs
…
openpromfs
…
overlayfs
ovl: proper cleanup of workdir
2018-09-15 09:40:41 +02:00
proc
proc: Remove empty line in /proc/self/status
2019-01-26 09:42:49 +01:00
pstore
pstore/ram: Do not treat empty buffers as valid
2019-01-26 09:42:53 +01:00
qnx4
…
qnx6
…
quota
fs/quota: Fix spectre gadget in do_quotactl
2018-09-09 20:04:36 +02:00
ramfs
mm, fs: obey gfp_mapping for add_to_page_cache()
2015-10-16 11:42:28 -07:00
reiserfs
reiserfs: propagate errors from fill_with_dentries() properly
2018-11-27 16:08:00 +01:00
romfs
romfs: use different way to generate fsid for BLOCK or MTD
2017-06-17 06:39:38 +02:00
squashfs
squashfs: more metadata hardenings
2018-08-06 16:24:42 +02:00
sysfs
scsi: sysfs: Introduce sysfs_{un,}break_active_protection()
2018-09-05 09:18:40 +02:00
sysv
sysv: return 'err' instead of 0 in __sysv_write_inode
2018-12-17 21:55:09 +01:00
tracefs
tracefs: Fix refcount imbalance in start_creating()
2015-11-04 22:13:45 -05:00
ubifs
ubifs: Check for name being NULL while mounting
2018-10-13 09:11:34 +02:00
udf
udf: Fix BUG on corrupted inode
2019-02-20 10:13:09 +01:00
ufs
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
xfs
xfs: don't fail when converting shortform attr to long form during ATTR_REPLACE
2019-01-26 09:42:52 +01:00
aio.c
aio: fix spectre gadget in lookup_ioctx
2018-12-21 14:09:50 +01:00
anon_inodes.c
…
attr.c
vfs: move permission checking into notify_change() for utimes(NULL)
2016-10-22 12:26:56 +02:00
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
libnvdimm for 4.4:
2015-11-10 12:07:22 -08:00
binfmt_elf.c
fs, elf: make sure to page align bss in load_elf_library
2018-11-21 09:27:41 +01:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
fs/binfmt_misc.c: do not allow offset overflow
2018-07-03 11:21:26 +02:00
binfmt_script.c
Revert "exec: load_script: don't blindly truncate shebang string"
2019-02-20 10:13:20 +01:00
block_dev.c
fs/block_dev: always invalidate cleancache in invalidate_bdev()
2017-05-20 14:27:01 +02:00
buffer.c
fs: add i_blocksize()
2017-06-14 13:16:24 +02:00
char_dev.c
…
compat_binfmt_elf.c
binfmt_elf: compat: avoid unused function warning
2018-02-25 11:03:51 +01:00
compat_ioctl.c
fs: compat: Remove warning from COMPATIBLE_IOCTL
2018-04-08 11:51:57 +02:00
compat.c
…
coredump.c
coredump: Ensure proper size of sparse core files
2017-07-05 14:37:20 +02:00
dax.c
dax: disable pmd mappings
2015-11-16 23:54:45 -08:00
dcache.c
fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb()
2019-02-06 19:43:07 +01:00
dcookies.c
…
direct-io.c
direct-io: Prevent NULL pointer access in submit_page_section
2017-10-18 09:20:42 +02:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
fs/epoll: drop ovflist branch prediction
2019-02-20 10:13:14 +01:00
exec.c
mm: replace get_user_pages() write/force parameters with gup_flags
2018-12-17 21:55:16 +01:00
fcntl.c
fs/fcntl: f_setown, avoid undefined behaviour
2018-01-31 12:06:11 +01:00
fhandle.c
fs/coredump: prevent fsuid=0 dumps into user-controlled directories
2016-04-12 09:08:58 -07:00
file_table.c
…
file.c
vfs: clear remainder of 'full_fds_bits' in dup_fd()
2015-11-05 23:05:32 -08:00
filesystems.c
…
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
bdi: Fix oops in wb_workfn()
2018-05-16 10:06:51 +02:00
inode.c
Fix up non-directory creation in SGID directories
2018-07-17 11:31:43 +02:00
internal.h
…
ioctl.c
…
Kconfig
dax: disable pmd mappings
2015-11-16 23:54:45 -08:00
Kconfig.binfmt
…
libfs.c
…
locks.c
locks: don't check for race with close when setting OFD lock
2018-01-17 09:35:27 +01:00
Makefile
ext4: promote ext4 over ext2 in the default probe order
2015-10-15 10:33:21 -04:00
mbcache.c
…
mount.h
mnt: In propgate_umount handle visiting mounts in any order
2017-07-21 07:44:57 +02:00
mpage.c
fs: add i_blocksize()
2017-06-14 13:16:24 +02:00
namei.c
namei: allow restricted O_CREAT of FIFOs and regular files
2018-12-01 09:46:41 +01:00
namespace.c
mount: Prevent MNT_DETACH from disconnecting locked mounts
2018-11-21 09:27:44 +01:00
no-block.c
…
nsfs.c
nsfs: mark dentry with DCACHE_RCUACCESS
2018-02-16 20:09:43 +01:00
open.c
fs: completely ignore unknown open flags
2017-07-15 11:57:44 +02:00
pipe.c
pipe: cap initial pipe capacity according to pipe-max-size limit
2018-05-26 08:48:51 +02:00
pnode.c
mnt: Make propagate_umount less slow for overlapping mount propagation trees
2017-07-21 07:44:58 +02:00
pnode.h
mnt: Add a per mount namespace limit on the number of mounts
2017-04-30 05:49:28 +02:00
posix_acl.c
tmpfs: clear S_ISGID when setting posix ACLs
2017-01-26 08:23:47 +01:00
proc_namespace.c
vfs: show_vfsstat: do not ignore errors from show_devname method
2016-04-12 09:08:55 -07:00
read_write.c
fs: add the fsnotify call to vfs_iter_write
2019-02-06 19:43:06 +01:00
readdir.c
…
select.c
fs/select: add vmalloc fallback for select(2)
2018-01-31 12:06:09 +01:00
seq_file.c
Make file credentials available to the seqfile interfaces
2017-08-06 19:19:42 -07:00
signalfd.c
…
splice.c
vfs: fix uninitialized flags in splice_to_pipe()
2017-02-23 17:43:09 +01:00
stack.c
…
stat.c
ufs: restore maintaining ->i_blocks
2017-06-14 13:16:24 +02:00
statfs.c
…
super.c
fs: don't scan the inode cache before SB_BORN is set
2019-02-06 19:43:08 +01:00
sync.c
fs/sync.c: make sync_file_range(2) use WB_SYNC_NONE writeback
2015-11-06 17:50:42 -08:00
timerfd.c
timerfd: Protect the might cancel mechanism proper
2017-05-08 07:46:01 +02:00
userfaultfd.c
userfaultfd: shmem: __do_fault requires VM_FAULT_NOPAGE
2017-12-20 10:04:53 +01:00
utimes.c
vfs: move permission checking into notify_change() for utimes(NULL)
2016-10-22 12:26:56 +02:00
xattr.c
getxattr: use correct xattr length
2018-09-09 20:04:36 +02:00