WSL2-Linux-Kernel/fs
Eric W. Biederman 39fd0cc079 coredump: Use the vma snapshot in fill_files_note
commit 390031c942 upstream.

Matthew Wilcox reported that there is a missing mmap_lock in
file_files_note that could possibly lead to a user after free.

Solve this by using the existing vma snapshot for consistency
and to avoid the need to take the mmap_lock anywhere in the
coredump code except for dump_vma_snapshot.

Update the dump_vma_snapshot to capture vm_pgoff and vm_file
that are neeeded by fill_files_note.

Add free_vma_snapshot to free the captured values of vm_file.

Reported-by: Matthew Wilcox <willy@infradead.org>
Link: https://lkml.kernel.org/r/20220131153740.2396974-1-willy@infradead.org
Cc: stable@vger.kernel.org
Fixes: a07279c9a8 ("binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot")
Fixes: 2aa362c49c ("coredump: extend core dump note section to contain file names of mapped files")
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-08 14:24:18 +02:00
..
9p Revert "fs/9p: search open fids first" 2022-02-08 18:34:04 +01:00
adfs mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
affs mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
afs afs: Fix mmap 2021-12-22 09:32:45 +01:00
autofs autofs: fix wait name hash calculation in autofs_wait() 2021-10-20 21:09:02 -04:00
befs isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
bfs mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
btrfs btrfs: make search_csum_tree return 0 if we get -EFBIG 2022-04-08 14:23:58 +02:00
cachefiles cachefiles: Change %p in format strings to something else 2021-08-27 13:34:02 +01:00
ceph ceph: put the requests/sessions when it fails to alloc memory 2022-02-01 17:27:14 +01:00
cifs Adjust cifssb maximum read size 2022-04-08 14:23:58 +02:00
coda
configfs configfs: fix a race in configfs_{,un}register_subsystem() 2022-03-02 11:48:02 +01:00
cramfs
crypto fscrypt: allow 256-bit master keys with AES-256-XTS 2021-11-18 19:16:11 +01:00
debugfs debugfs: lockdown: Allow reading debugfs files that are not world readable 2022-01-27 11:03:55 +01:00
devpts fsnotify: fix fsnotify hooks in pseudo filesystems 2022-02-01 17:27:01 +01:00
dlm fs: dlm: filter user dlm messages for kernel locks 2022-01-27 11:04:23 +01:00
ecryptfs mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
efivarfs
efs
erofs erofs: fix deadlock when shrink erofs slab 2021-12-01 09:04:50 +01:00
exfat exfat: fix i_blocks for files truncated over 4 GiB 2022-03-08 19:12:32 +01:00
exportfs
ext2 ext2: correct max file size computing 2022-04-08 14:23:35 +02:00
ext4 ext4: don't BUG if someone dirty pages without asking ext4 first 2022-04-08 14:23:57 +02:00
f2fs f2fs: compress: fix to print raw data size in error path of lz4 decompression 2022-04-08 14:23:58 +02:00
fat linux-kselftest-kunit-5.15-rc1 2021-09-02 12:32:12 -07:00
freevxfs
fscache fscache: Remove an unused static variable 2021-10-04 22:13:12 +01:00
fuse fuse: fix pipe buffer lifetime for direct_io 2022-03-16 14:23:42 +01:00
gfs2 gfs2: Make sure FITRIM minlen is rounded up to fs block size 2022-04-08 14:24:10 +02:00
hfs hfs: add lock nesting notation to hfs_find_init 2021-07-15 10:13:49 -07:00
hfsplus hfsplus: report create_date to kstat.btime 2021-07-01 11:06:06 -07:00
hostfs hostfs: support splice_write 2021-08-26 22:28:02 +02:00
hpfs hpfs: use iomap_fiemap to implement ->fiemap 2021-07-27 11:00:36 +02:00
hugetlbfs hugetlbfs: fix off-by-one error in hugetlb_vmdelete_list() 2022-03-08 19:12:38 +01:00
iomap iomap: Fix inline extent handling in iomap_readpage 2021-12-01 09:04:44 +01:00
isofs isofs: Fix out of bound access for corrupted isofs image 2021-11-12 15:05:50 +01:00
jbd2 ext4: fast commit may not fallback for ineligible commit 2022-03-08 19:12:32 +01:00
jffs2 jffs2: fix memory leak in jffs2_scan_medium 2022-04-08 14:22:53 +02:00
jfs jfs: fix divide error in dbNextAG 2022-04-08 14:23:51 +02:00
kernfs kernfs: don't create a negative dentry if inactive node exists 2021-10-04 10:27:18 +02:00
ksmbd ksmbd: don't align last entry offset in smb2 query directory 2022-02-23 12:03:18 +01:00
lockd lockd: fix failure to cleanup client locks 2022-02-05 12:38:57 +01:00
minix mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
netfs netfs: fix parameter of cleanup() 2021-12-29 12:28:59 +01:00
nfs NFSv4/pNFS: Fix another issue with a list iterator pointing to the head 2022-04-08 14:23:54 +02:00
nfs_common nfs: Fix kerneldoc warning shown up by W=1 2021-10-04 22:02:17 +01:00
nfsd NFSD: Fix nfsd_breaker_owns_lease() return values 2022-04-08 14:23:57 +02:00
nilfs2 Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
nls
notify fanotify: Fix stale file descriptor in copy_event_to_user() 2022-02-05 12:38:59 +01:00
ntfs ntfs: add sanity check on allocation size 2022-04-08 14:23:58 +02:00
ntfs3 Fixed xfstests generic/016 generic/021 generic/022 generic/041 generic/274 generic/423, 2021-10-15 09:58:11 -04:00
ocfs2 ocfs2: fix crash when mount with quota enabled 2022-04-08 14:22:56 +02:00
omfs mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
openpromfs
orangefs orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc() 2022-01-20 09:13:13 +01:00
overlayfs ovl: fix NULL pointer dereference in copy up warning 2022-02-05 12:38:59 +01:00
proc proc: bootconfig: Add null pointer check 2022-04-08 14:24:12 +02:00
pstore pstore: Don't use semaphores in always-atomic-context code 2022-04-08 14:23:01 +02:00
qnx4 qnx4: work around gcc false positive warning bug 2021-09-21 08:36:48 -07:00
qnx6
quota quota: make dquot_quota_sync return errors from ->sync_fs 2022-02-23 12:03:06 +01:00
ramfs fs: move ramfs_aops to libfs 2021-06-29 10:53:48 -07:00
reiserfs Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
romfs
smbfs_common cifs: Fix crash on unload of cifs_arc4.ko 2021-12-14 10:57:12 +01:00
squashfs squashfs: use bvec_virt 2021-08-16 10:50:32 -06:00
sysfs sysfs: Allow deferred execution of iomem_get_mapping() 2021-08-06 13:05:28 +02:00
sysv mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
tracefs tracefs: Set the group ownership in apply_options() not parse_options() 2022-03-02 11:48:05 +01:00
ubifs ubifs: rename_whiteout: correct old_dir size computing 2022-04-08 14:24:08 +02:00
udf udf: Fix NULL ptr deref when converting from inline format 2022-02-01 17:27:00 +01:00
ufs isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
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 xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate 2022-01-11 15:35:16 +01:00
zonefs zonefs: add MODULE_ALIAS_FS 2021-12-22 09:32:48 +01:00
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 binfmt: remove support for em86 (alpha only) 2021-07-25 22:33:03 -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
aio.c aio: Fix incorrect usage of eventfd_signal_allowed() 2021-12-14 10:57:22 +01:00
anon_inodes.c
attr.c fs: handle circular mappings correctly 2021-11-25 09:48:46 +01:00
bad_inode.c vfs: add rcu argument to ->get_acl() callback 2021-08-18 22:08:24 +02:00
binfmt_aout.c binfmt: a.out: Fix bogus semicolon 2021-09-05 10:15:05 -07:00
binfmt_elf.c coredump: Use the vma snapshot in fill_files_note 2022-04-08 14:24:18 +02:00
binfmt_elf_fdpic.c coredump: Snapshot the vmas in do_coredump 2022-04-08 14:24:17 +02:00
binfmt_flat.c binfmt: remove in-tree usage of MAP_EXECUTABLE 2021-06-29 10:53:50 -07:00
binfmt_misc.c
binfmt_script.c
buffer.c mm: fs: fix lru_cache_disabled race in bh_lru 2022-04-08 14:22:54 +02:00
char_dev.c
compat_binfmt_elf.c
coredump.c coredump: Use the vma snapshot in fill_files_note 2022-04-08 14:24:18 +02:00
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 exec: Force single empty string when argv is empty 2022-04-08 14:23:01 +02:00
fcntl.c Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
fhandle.c
file.c fs: fix fd table size alignment properly 2022-04-08 14:23:54 +02:00
file_table.c
filesystems.c fs: simplify get_filesystem_list / get_all_fs_names 2021-08-23 01:25:40 -04:00
fs-writeback.c Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
fs_context.c vfs: fs_context: fix up param length parsing in legacy_parse_param 2022-01-20 09:13:14 +01:00
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 fs: export an inode_update_time helper 2021-11-25 09:49:08 +01:00
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: drop wqe lock before creating new worker 2021-12-22 09:32:51 +01:00
io-wq.h io-wq: provide a way to limit max number of workers 2021-08-29 07:55:55 -06:00
io_uring.c io_uring: fix memory leak of uid in files registration 2022-04-08 14:24:12 +02:00
ioctl.c New code for 5.15: 2021-08-31 11:06:32 -07:00
kernel_read_file.c vfs: check fd has read access in kernel_read_file_from_fd() 2021-10-18 20:22:03 -10:00
libfs.c fs: remove noop_set_page_dirty() 2021-06-29 10:53:48 -07:00
locks.c Revert "memcg: enable accounting for file lock caches" 2021-09-07 11:21:48 -07:00
mbcache.c
mount.h
mpage.c
namei.c fsnotify: invalidate dcache before IN_DELETE event 2022-02-01 17:27:15 +01:00
namespace.c fs/mount_setattr: always cleanup mount_kattr 2022-01-05 12:42:39 +01:00
no-block.c
nsfs.c
open.c mm, thp: fix incorrect unmap behavior for private pages 2021-11-18 19:17:17 +01:00
pipe.c watch_queue: Fix lack of barrier/sync/lock between post and read 2022-03-16 14:23:44 +01:00
pnode.c
pnode.h
posix_acl.c ovl: enable RCU'd ->get_acl() 2021-08-18 22:08:24 +02:00
proc_namespace.c
read_write.c fs: clean up after mandatory file locking support removal 2021-08-24 07:52:45 -04:00
readdir.c
remap_range.c fs: remove mandatory file locking support 2021-08-23 06:15:36 -04:00
select.c select: Fix indefinitely sleeping task in poll_schedule_timeout() 2022-01-29 10:58:25 +01:00
seq_file.c seq_file: disallow extremely large seq buffer allocations 2021-07-19 17:18:48 -07:00
signalfd.c signalfd: use wake_up_pollfree() 2021-12-14 10:57:15 +01:00
splice.c
stack.c
stat.c fs: add generic helper for filling statx attribute flags 2021-08-17 11:47:43 +02:00
statfs.c
super.c vfs: make freeze_super abort when sync_filesystem returns error 2022-02-23 12:03:05 +01:00
sync.c
timerfd.c timerfd: Provide timerfd_resume() 2021-08-10 17:57:22 +02:00
userfaultfd.c userfaultfd: fix a race between writeprotect and exit_mmap() 2021-10-18 20:22:02 -10:00
utimes.c
xattr.c