Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Christophe Leroy aa2a047b58 mm, hugetlb: allow for "high" userspace addresses ... commit 5f24d5a579d1eace79d505b148808a850b417d4c upstream. This is a fix for commit f6795053da ("mm: mmap: Allow for "high" userspace addresses") for hugetlb. This patch adds support for "high" userspace addresses that are optionally supported on the system and have to be requested via a hint mechanism ("high" addr parameter to mmap). Architectures such as powerpc and x86 achieve this by making changes to their architectural versions of hugetlb_get_unmapped_area() function. However, arm64 uses the generic version of that function. So take into account arch_get_mmap_base() and arch_get_mmap_end() in hugetlb_get_unmapped_area(). To allow that, move those two macros out of mm/mmap.c into include/linux/sched/mm.h If these macros are not defined in architectural code then they default to (TASK_SIZE) and (base) so should not introduce any behavioural changes to architectures that do not define them. For the time being, only ARM64 is affected by this change. Catalin (ARM64) said "We should have fixed hugetlb_get_unmapped_area() as well when we added support for 52-bit VA. The reason for commit f6795053da was to prevent normal mmap() from returning addresses above 48-bit by default as some user-space had hard assumptions about this. It's a slight ABI change if you do this for hugetlb_get_unmapped_area() but I doubt anyone would notice. It's more likely that the current behaviour would cause issues, so I'd rather have them consistent. Basically when arm64 gained support for 52-bit addresses we did not want user-space calling mmap() to suddenly get such high addresses, otherwise we could have inadvertently broken some programs (similar behaviour to x86 here). Hence we added commit f6795053da. But we missed hugetlbfs which could still get such high mmap() addresses. So in theory that's a potential regression that should have bee addressed at the same time as commit f6795053da (and before arm64 enabled 52-bit addresses)" Link: https://lkml.kernel.org/r/ab847b6edb197bffdfe189e70fb4ac76bfe79e0d.1650033747.git.christophe.leroy@csgroup.eu Fixes: f6795053da ("mm: mmap: Allow for "high" userspace addresses") Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Steve Capper <steve.capper@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: <stable@vger.kernel.org> [5.0.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-05-09 09:03:28 +02:00
..
9p	9P: Cast to loff_t before multiplying	2020-11-05 11:43:34 +01:00
adfs
affs	fs/affs: release old buffer head on error path	2021-03-04 10:26:48 +01:00
afs	afs: Fix incorrect triggering of sillyrename on 3rd-party invalidation	2021-09-30 10:09:22 +02:00
autofs
befs
bfs	bfs: don't use WARNING: string when it's just info.	2021-01-06 14:48:39 +01:00
btrfs	btrfs: mark resumed async balance as writing	2022-04-20 09:19:38 +02:00
cachefiles	cachefiles: Handle readpage error correctly	2020-11-05 11:43:36 +01:00
ceph	ceph: fix handling of "meta" errors	2021-10-27 09:54:27 +02:00
cifs	cifs: destage any unwritten data to the server before calling copychunk_write	2022-05-09 09:03:26 +02:00
coda
configfs	configfs: fix a race in configfs_{,un}register_subsystem()	2022-03-02 11:41:10 +01:00
cramfs
crypto	fscrypt: add fscrypt_symlink_getattr() for computing st_size	2021-09-12 08:56:38 +02:00
debugfs	debugfs: lockdown: Allow reading debugfs files that are not world readable	2022-01-27 09:19:36 +01:00
devpts	fsnotify: fix fsnotify hooks in pseudo filesystems	2022-02-01 17:24:34 +01:00
dlm	fs: dlm: filter user dlm messages for kernel locks	2022-01-27 09:19:40 +01:00
ecryptfs	Revert "ecryptfs: replace BUG_ON with error handling code"	2021-05-26 12:05:19 +02:00
efivarfs	efivarfs: revert "fix memory leak in efivarfs_create()"	2020-12-02 08:49:53 +01:00
efs
erofs	erofs: fix unsafe pagevec reuse of hooked pclusters	2021-11-21 13:38:51 +01:00
exportfs
ext2	ext2: correct max file size computing	2022-04-15 14:18:13 +02:00
ext4	ext4: force overhead calculation if the s_overhead_cluster makes no sense	2022-04-27 13:50:50 +02:00
f2fs	f2fs: fix to avoid potential deadlock	2022-04-15 14:18:06 +02:00
fat
freevxfs
fscache	fscache: Fix cookie key hashing	2021-09-22 12:26:25 +02:00
fuse	fuse: fix pipe buffer lifetime for direct_io	2022-03-16 13:21:47 +01:00
gfs2	gfs2: assign rgrp glock before compute_bitstructs	2022-04-27 13:50:45 +02:00
hfs	hfs: add lock nesting notation to hfs_find_init	2021-07-31 08:19:38 +02:00
hfsplus	hfsplus: prevent corruption in shrinking truncate	2021-05-19 10:08:29 +02:00
hostfs	hostfs: fix memory handling in follow_link()	2021-04-14 08:24:14 +02:00
hpfs
hugetlbfs	mm, hugetlb: allow for "high" userspace addresses	2022-05-09 09:03:28 +02:00
iomap	mm/swap: consider max pages in iomap_swapfile_add_extent	2021-09-15 09:47:35 +02:00
isofs	isofs: Fix out of bound access for corrupted isofs image	2021-11-12 14:43:03 +01:00
jbd2	jbd2: fix a potential race while discarding reserved buffers after an abort	2022-04-27 13:50:50 +02:00
jffs2	jffs2: fix memory leak in jffs2_scan_medium	2022-04-15 14:17:59 +02:00
jfs	jfs: prevent NULL deref in diFree	2022-04-15 14:18:36 +02:00
kernfs
lockd	lockd: lockd server-side shouldn't set fl_ops	2021-09-22 12:26:34 +02:00
minix	minix: fix bug when opening a file with O_DIRECT	2022-04-15 14:18:35 +02:00
nfs	NFS: swap-out must always use STABLE writes.	2022-04-15 14:18:36 +02:00
nfs_common	nfs_common: need lock during iterate through the list	2020-12-30 11:51:22 +01:00
nfsd	NFSD: prevent underflow in nfssvc_decode_writeargs()	2022-04-15 14:17:59 +02:00
nilfs2	nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group	2021-09-26 14:07:13 +02:00
nls
notify
ntfs	ntfs: add sanity check on allocation size	2022-04-15 14:18:23 +02:00
ocfs2	ocfs2: fix crash when initialize filecheck kobj fails	2022-03-23 09:12:06 +01:00
omfs
openpromfs
orangefs	orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc()	2022-01-20 09:19:17 +01:00
overlayfs	ovl: fix warning in ovl_create_real()	2021-12-22 09:29:40 +01:00
proc	proc/vmcore: fix clearing user buffer by properly using clear_user()	2021-12-01 09:23:31 +01:00
pstore	pstore: Fix typo in compression option name	2021-03-04 10:26:45 +01:00
qnx4	qnx4: work around gcc false positive warning bug	2021-09-30 10:09:26 +02:00
qnx6
quota	quota: make dquot_quota_sync return errors from ->sync_fs	2022-02-23 11:59:55 +01:00
ramfs
reiserfs	reiserfs: check directory items on read from disk	2021-08-12 13:21:05 +02:00
romfs
squashfs	squashfs: fix divide error in calculate_skip()	2021-05-19 10:08:29 +02:00
sysfs	sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output	2021-03-07 12:20:48 +01:00
sysv
tracefs	tracefs: Set the group ownership in apply_options() not parse_options()	2022-03-02 11:41:13 +01:00
ubifs	ubifs: Rectify space amount budget for mkdir/tmpfile operations	2022-04-15 14:18:31 +02:00
udf	udf: Fix NULL ptr deref when converting from inline format	2022-02-01 17:24:34 +01:00
ufs
unicode
verity	fs-verity: fix signed integer overflow with i_size near S64_MAX	2021-10-06 15:42:30 +02:00
xfs	xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate	2022-01-11 15:23:32 +01:00
aio.c	aio: fix use-after-free due to missing POLLFREE handling	2021-12-14 14:49:02 +01:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c	elf: don't use MAP_FIXED_NOREPLACE for elf interpreter mappings	2021-10-06 15:42:35 +02:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c	binfmt_misc: fix possible deadlock in bm_register_write	2021-03-17 17:03:57 +01:00
binfmt_script.c
block_dev.c	block: reexpand iov_iter after read/write	2021-05-22 11:38:29 +02:00
buffer.c	fs: Don't invalidate page buffers in block_write_full_page()	2020-11-05 11:43:24 +01:00
char_dev.c
compat.c
compat_binfmt_elf.c
compat_ioctl.c
coredump.c	coredump: fix core_pattern parse error	2020-12-11 13:23:30 +01:00
d_path.c
dax.c	dax: fix ENOMEM handling in grab_mapping_entry()	2021-07-14 16:53:25 +02:00
dcache.c
dcookies.c
direct-io.c	fs: direct-io: fix missing sdio->boundary	2021-04-14 08:24:11 +02:00
drop_caches.c
eventfd.c
eventpoll.c
exec.c	vfs: check fd has read access in kernel_read_file_from_fd()	2021-10-27 09:54:27 +02:00
fcntl.c	fcntl: fix potential deadlock for &fasync_struct.fa_lock	2021-09-15 09:47:28 +02:00
fhandle.c
file.c	fget: clarify and improve __fget_files() implementation	2022-03-02 11:41:18 +01:00
file_table.c
filesystems.c
fs-writeback.c	writeback: fix obtain a reference to a freeing memcg css	2021-07-14 16:53:35 +02:00
fs_context.c	memcg: charge fs_context and legacy_fs_context	2022-02-08 18:24:29 +01:00
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
inode.c
internal.h	cgroup1: fix leaked context root causing sporadic NULL deref in LTP	2021-07-31 08:19:37 +02:00
io_uring.c	io_uring: fix fs->users overflow	2022-04-15 14:18:41 +02:00
ioctl.c
Kconfig
Kconfig.binfmt
libfs.c	libfs: fix error cast of negative value in simple_attr_write()	2020-11-24 13:29:19 +01:00
locks.c
Makefile
mbcache.c
mount.h
mpage.c
namei.c	fsnotify: invalidate dcache before IN_DELETE event	2022-02-01 17:24:39 +01:00
namespace.c	fs: warn about impending deprecation of mandatory locks	2021-08-26 08:36:22 -04:00
no-block.c
nsfs.c
open.c
pipe.c	pipe: increase minimum default pipe size to 2 pages	2021-08-12 13:21:02 +02:00
pnode.c
pnode.h	mount: fix mounting of detached mounts onto targets that reside on shared mounts	2021-03-17 17:03:33 +01:00
posix_acl.c
proc_namespace.c
read_write.c
readdir.c	readdir: make sure to verify directory entry for legacy interfaces too	2021-04-21 12:56:16 +02:00
select.c	select: Fix indefinitely sleeping task in poll_schedule_timeout()	2022-01-29 10:25:11 +01:00
seq_file.c	seq_file: disallow extremely large seq buffer allocations	2021-07-20 16:10:54 +02:00
signalfd.c	signalfd: use wake_up_pollfree()	2021-12-14 14:49:02 +01:00
splice.c
stack.c
stat.c	stat: fix inconsistency between struct stat and struct compat_stat	2022-04-27 13:50:48 +02:00
statfs.c
super.c	vfs: make freeze_super abort when sync_filesystem returns error	2022-02-23 11:59:55 +01:00
sync.c
timerfd.c
userfaultfd.c	userfaultfd: prevent concurrent API initialization	2021-09-22 12:26:26 +02:00
utimes.c
xattr.c