Chen Jingwen 9b2f72cc0a elf: don't use MAP_FIXED_NOREPLACE for elf interpreter mappings ... In commit b212921b13 ("elf: don't use MAP_FIXED_NOREPLACE for elf executable mappings") we still leave MAP_FIXED_NOREPLACE in place for load_elf_interp. Unfortunately, this will cause kernel to fail to start with: 1 (init): Uhuuh, elf segment at 00003ffff7ffd000 requested but the memory is mapped already Failed to execute /init (error -17) The reason is that the elf interpreter (ld.so) has overlapping segments. readelf -l ld-2.31.so Program Headers: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flags Align LOAD 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x000000000002c94c 0x000000000002c94c R E 0x10000 LOAD 0x000000000002dae0 0x000000000003dae0 0x000000000003dae0 0x00000000000021e8 0x0000000000002320 RW 0x10000 LOAD 0x000000000002fe00 0x000000000003fe00 0x000000000003fe00 0x00000000000011ac 0x0000000000001328 RW 0x10000 The reason for this problem is the same as described in commit ad55eac74f ("elf: enforce MAP_FIXED on overlaying elf segments"). Not only executable binaries, elf interpreters (e.g. ld.so) can have overlapping elf segments, so we better drop MAP_FIXED_NOREPLACE and go back to MAP_FIXED in load_elf_interp. Fixes: 4ed2863951 ("fs, elf: drop MAP_FIXED usage from elf_map") Cc: <stable@vger.kernel.org> # v4.19 Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Hocko <mhocko@suse.com> Signed-off-by: Chen Jingwen <chenjingwen6@huawei.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2021-10-03 14:02:58 -07:00
..
9p	overlayfs update for 5.15	2021-09-02 09:21:27 -07:00
adfs
affs
afs	afs: Fix updating of i_blocks on file/dir extension	2021-09-13 09:14:21 +01:00
autofs
befs
bfs
btrfs	for-5.15-rc2-tag	2021-09-23 14:39:41 -07:00
cachefiles
ceph	ceph: fix off by one bugs in unsafe_request_wait()	2021-09-21 17:39:20 +02:00
cifs	cifs: fix incorrect check for null pointer in header_assemble	2021-09-23 21:12:53 -05:00
coda
configfs
cramfs
crypto
debugfs	debugfs: debugfs_create_file_size(): use IS_ERR to check for error	2021-09-21 09:09:06 +02:00
devpts
dlm	fs: dlm: avoid comms shutdown delay in release_lockspace	2021-09-01 11:29:14 -05:00
ecryptfs
efivarfs
efs
erofs	erofs: clear compacted_2b if compacted_4b_initial > totalidx	2021-09-23 23:23:04 +08:00
exfat
exportfs
ext2	ext2: fix sleeping in atomic bugs on error	2021-09-22 13:05:23 +02:00
ext4	Fix a number of ext4 bugs in fast_commit, inline data, and delayed	2021-10-03 13:56:53 -07:00
f2fs	f2fs-for-5.15-rc1	2021-09-04 10:48:47 -07:00
fat	linux-kselftest-kunit-5.15-rc1	2021-09-02 12:32:12 -07:00
freevxfs
fscache
fuse	fuse update for 5.15	2021-09-07 12:18:29 -07:00
gfs2	Merge branch 'work.gfs2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-09-09 12:45:26 -07:00
hfs
hfsplus
hostfs
hpfs
hugetlbfs
iomap
isofs
jbd2
jffs2
jfs
kernfs	kernfs: also call kernfs_set_rev() for positive dentry	2021-09-28 18:18:15 +02:00
ksmbd	ksmbd: missing check for NULL in convert_to_nt_pathname()	2021-09-30 20:00:05 -05:00
lockd	Critical bug fixes:	2021-09-22 09:21:02 -07:00
minix
netfs
nfs	NFS Client Updates for Linux 5.15	2021-09-04 10:25:26 -07:00
nfs_common
nfsd	Critical bug fixes:	2021-09-22 09:21:02 -07:00
nilfs2	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
nls
notify	fsnotify: fix sb_connectors leak	2021-09-10 09:46:48 -07:00
ntfs
ntfs3	Merge git://github.com/Paragon-Software-Group/linux-ntfs3	2021-09-04 11:15:50 -07:00
ocfs2	ocfs2: drop acl cache for directories too	2021-09-24 16:13:34 -07:00
omfs
openpromfs
orangefs
overlayfs
proc	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
pstore
qnx4	qnx4: work around gcc false positive warning bug	2021-09-21 08:36:48 -07:00
qnx6
quota
ramfs
reiserfs	Kbuild updates for v5.15	2021-09-03 15:33:47 -07:00
romfs
smbfs_common	cifs: remove pathname for file from SPDX header	2021-09-13 14:51:10 -05:00
squashfs
sysfs
sysv
tracefs
ubifs
udf
ufs
unicode
vboxsf	vboxfs: fix broken legacy mount signature checking	2021-09-27 11:26:21 -07:00
verity	fs-verity: fix signed integer overflow with i_size near S64_MAX	2021-09-22 10:56:34 -07:00
xfs	libnvdimm for v5.15	2021-09-09 11:39:57 -07:00
zonefs
aio.c
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c	binfmt: a.out: Fix bogus semicolon	2021-09-05 10:15:05 -07:00
binfmt_elf.c	elf: don't use MAP_FIXED_NOREPLACE for elf interpreter mappings	2021-10-03 14:02:58 -07:00
binfmt_elf_fdpic.c	binfmt: remove in-tree usage of MAP_DENYWRITE	2021-09-03 18:42:01 +02:00
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
buffer.c	mm: fs: invalidate bh_lrus for only cold path	2021-09-24 16:13:35 -07:00
char_dev.c
compat_binfmt_elf.c
coredump.c	coredump: fix memleak in dump_vma_snapshot()	2021-09-08 11:50:27 -07:00
d_path.c	d_path: make 'prepend()' fill up the buffer exactly on overflow	2021-09-02 10:07:29 -07:00
dax.c	New code for 5.15:	2021-08-31 11:13:35 -07:00
dcache.c
direct-io.c
drop_caches.c	fs: drop_caches: fix skipping over shadow cache inodes	2021-09-03 09:58:10 -07:00
eventfd.c	eventfd: Export eventfd_wake_count to modules	2021-09-06 07:20:56 -04:00
eventpoll.c	ARM development updates for 5.15:	2021-09-09 13:25:49 -07:00
exec.c	Merge tag 'denywrite-for-5.15' of git://github.com/davidhildenbrand/linux	2021-09-04 11:35:47 -07:00
fcntl.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
fhandle.c
file.c	virtio,vdpa,vhost: features, fixes	2021-09-11 14:48:42 -07:00
file_table.c
filesystems.c
fs-writeback.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
fs_context.c	memcg: charge fs_context and legacy_fs_context	2021-09-03 09:58:12 -07:00
fs_parser.c	namei: Standardize callers of filename_lookup()	2021-09-07 16:07:47 -04:00
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
init.c
inode.c	mm: Fully initialize invalidate_lock, amend lock class later	2021-09-17 13:39:23 +02:00
internal.h	block: move fs/block_dev.c to block/bdev.c	2021-09-07 08:39:40 -06:00
io-wq.c	io-wq: exclusively gate signal based exit on get_signal() return	2021-09-27 11:03:43 -06:00
io-wq.h
io_uring.c	io_uring: kill fasync	2021-10-01 11:16:02 -06:00
ioctl.c	New code for 5.15:	2021-08-31 11:06:32 -07:00
Kconfig	4 cifs/smb3 fixes, one for DFS reconnect, and one to begin creating common headers for server and client and the other two to rename the cifs_common directory to smbfs_common to be more consistent ie change use of the name cifs to smb which is more accurate	2021-09-12 10:10:21 -07:00
Kconfig.binfmt
kernel_read_file.c
libfs.c
locks.c	Revert "memcg: enable accounting for file lock caches"	2021-09-07 11:21:48 -07:00
Makefile	4 cifs/smb3 fixes, one for DFS reconnect, and one to begin creating common headers for server and client and the other two to rename the cifs_common directory to smbfs_common to be more consistent ie change use of the name cifs to smb which is more accurate	2021-09-12 10:10:21 -07:00
mbcache.c
mount.h
mpage.c
namei.c	putname(): IS_ERR_OR_NULL() is wrong here	2021-09-07 16:14:05 -04:00
namespace.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
no-block.c
nsfs.c
open.c
pipe.c	Revert "mm/gup: remove try_get_page(), call try_get_compound_head() directly"	2021-09-07 11:03:45 -07:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
readdir.c
remap_range.c
select.c	Revert "memcg: enable accounting for pollfd and select bits arrays"	2021-09-07 11:26:23 -07:00
seq_file.c
signalfd.c
splice.c
stack.c
stat.c
statfs.c
super.c
sync.c
timerfd.c
userfaultfd.c	userfaultfd: prevent concurrent API initialization	2021-09-03 09:58:16 -07:00
utimes.c
xattr.c