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linux-stable/fs
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David Sterba 98e626c115 btrfs: send: limit number of clones and allocated memory size 
[ Upstream commit 33e17b3f5a ]

The arg->clone_sources_count is u64 and can trigger a warning when a
huge value is passed from user space and a huge array is allocated.
Limit the allocated memory to 8MiB (can be increased if needed), which
in turn limits the number of clone sources to 8M / sizeof(struct
clone_root) = 8M / 40 = 209715.  Real world number of clones is from
tens to hundreds, so this is future proof.

Reported-by: syzbot+4376a9a073770c173269@syzkaller.appspotmail.com
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-03 11:41:48 +01:00
..
9p 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" 2022-06-22 14:11:02 +02:00
adfs
affs affs: initialize fsdata in affs_truncate() 2023-02-06 07:52:36 +01:00
afs afs: Fix fileserver probe RTT handling 2022-12-08 11:23:03 +01:00
autofs
befs
bfs
btrfs btrfs: send: limit number of clones and allocated memory size 2023-03-03 11:41:48 +01:00
cachefiles
ceph ceph: flush cap releases when the session is flushed 2023-02-22 12:50:33 +01:00
cifs cifs: Fix oops due to uncleared server->smbd_conn in reconnect 2023-02-06 07:52:44 +01:00
coda
configfs configfs: fix possible memory leak in configfs_create_dir() 2023-01-18 11:41:09 +01:00
cramfs
crypto fscrypt: add fscrypt_symlink_getattr() for computing st_size 2021-09-12 08:56:38 +02:00
debugfs debugfs: fix error when writing negative value to atomic_t debugfs file 2023-01-18 11:40:56 +01:00
devpts fsnotify: fix fsnotify hooks in pseudo filesystems 2022-02-01 17:24:34 +01:00
dlm fs: dlm: handle -EBUSY first in lock arg validation 2022-10-26 13:22:14 +02:00
ecryptfs Revert "ecryptfs: replace BUG_ON with error handling code" 2021-05-26 12:05:19 +02:00
efivarfs
efs
erofs erofs: avoid consecutive detection for Highmem memory 2022-08-25 11:17:36 +02:00
exportfs
ext2 ext2: Add more validity checks for inode counts 2022-08-25 11:17:28 +02:00
ext4 ext4: Fix function prototype mismatch for ext4_feat_ktype 2023-02-25 11:53:27 +01:00
f2fs f2fs: fix to do sanity check on i_extra_isize in is_alive() 2023-02-22 12:50:29 +01:00
fat fat: add ratelimit to fat*_ent_bread() 2022-06-14 18:11:30 +02:00
freevxfs
fscache fscache: Fix cookie key hashing 2021-09-22 12:26:25 +02:00
fuse fuse: lock inode unconditionally in fuse_fallocate() 2022-12-08 11:23:01 +01:00
gfs2 gfs2: Switch from strlcpy to strscpy 2022-11-25 17:42:22 +01:00
hfs hfs/hfsplus: avoid WARN_ON() for sanity check, use proper error handling 2023-01-18 11:41:59 +01:00
hfsplus hfs/hfsplus: use WARN_ON for sanity check 2023-01-18 11:41:59 +01:00
hostfs hostfs: fix memory handling in follow_link() 2021-04-14 08:24:14 +02:00
hpfs
hugetlbfs hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param() 2023-01-18 11:41:38 +01:00
iomap iomap: iomap_write_failed fix 2022-06-14 18:11:36 +02:00
isofs isofs: Fix out of bound access for corrupted isofs image 2021-11-12 14:43:03 +01:00
jbd2 jbd2: wake up journal waiters in FIFO order, not LIFO 2022-10-26 13:22:17 +02:00
jffs2 jffs2: fix memory leak in jffs2_do_fill_super 2022-06-14 18:11:55 +02:00
jfs fs: jfs: fix shift-out-of-bounds in dbDiscardAG 2023-01-18 11:41:34 +01:00
kernfs kernfs: fix use-after-free in __kernfs_remove 2022-11-03 23:56:54 +09:00
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 pNFS/filelayout: Fix coalescing test for single DS 2023-01-24 07:17:58 +01:00
nfs_common
nfsd nfsd: Ensure knfsd shuts down when the "nfsd" pseudofs is unmounted 2023-02-06 07:52:47 +01:00
nilfs2 nilfs2: fix underflow in second superblock position calculations 2023-02-22 12:50:41 +01:00
nls
notify fsnotify: fix wrong lockdep annotations 2022-06-14 18:11:34 +02:00
ntfs ntfs: check overflow when iterating ATTR_RECORDs 2022-11-25 17:42:22 +01:00
ocfs2 ocfs2: fix freeing uninitialized resource on ocfs2_dlm_shutdown 2023-01-18 11:42:06 +01:00
omfs
openpromfs
orangefs orangefs: Fix kmemleak in orangefs_{kernel,client}_debug_init() 2023-01-18 11:41:39 +01:00
overlayfs ovl: Use ovl mounter's fsuid and fsgid in ovl_link() 2023-01-18 11:41:43 +01:00
proc mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps 2023-02-22 12:50:28 +01:00
pstore pstore: Make sure CONFIG_PSTORE_PMSG selects CONFIG_RT_MUTEXES 2023-01-18 11:41:40 +01:00
qnx4 qnx4: work around gcc false positive warning bug 2021-09-30 10:09:26 +02:00
qnx6
quota ext4: fix bug_on in __es_tree_search caused by bad quota inode 2023-01-18 11:42:02 +01:00
ramfs
reiserfs fs: reiserfs: remove useless new_opts in reiserfs_remount 2023-02-06 07:52:43 +01:00
romfs
squashfs revert "squashfs: harden sanity check in squashfs_read_xattr_id_table" 2023-02-22 12:50:39 +01:00
sysfs sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2021-03-07 12:20:48 +01:00
sysv fs: sysv: Fix sysv_nblocks() returns wrong value 2023-01-18 11:40:58 +01:00
tracefs tracefs: Only clobber mode/uid/gid on remount if asked 2022-09-20 12:28:00 +02:00
ubifs ubifs: Rectify space amount budget for mkdir/tmpfile operations 2022-04-15 14:18:31 +02:00
udf udf: Fix extension of the last extent in the file 2023-01-18 11:41:58 +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: sync lazy sb accounting on quiesce of read-only mounts 2023-02-22 12:50:38 +01:00
aio.c aio: fix mremap after fork null-deref 2023-02-22 12:50:35 +01:00
anon_inodes.c
attr.c vfs: Check the truncate maximum size in inode_newsize_ok() 2022-08-25 11:17:21 +02:00
bad_inode.c
binfmt_aout.c binfmt: Move install_exec_creds after setup_new_exec to match binfmt_elf 2023-01-18 11:41:46 +01:00
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: Fix error return code in load_elf_fdpic_binary() 2023-01-18 11:41:46 +01:00
binfmt_em86.c
binfmt_flat.c binfmt: Move install_exec_creds after setup_new_exec to match binfmt_elf 2023-01-18 11:41:46 +01:00
binfmt_misc.c binfmt_misc: fix shift-out-of-bounds in check_special_flags 2023-01-18 11:41:33 +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 mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-25 17:42:22 +01:00
char_dev.c chardev: fix error handling in cdev_device_add() 2023-01-18 11:41:25 +01:00
compat.c
compat_binfmt_elf.c
compat_ioctl.c compat_ioctl: remove /dev/random commands 2022-06-22 14:11:03 +02:00
coredump.c
d_path.c
dax.c dax: fix cache flush on PMD-mapped pages 2022-06-14 18:11:41 +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 epoll: check for events when removing a timed out thread from the wait queue 2022-12-08 11:23:05 +01:00
exec.c exec: Force single empty string when argv is empty 2022-06-06 08:33:50 +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 SUNRPC: Ensure we flush any closed sockets before xs_xprt_free() 2022-05-25 09:14:34 +02:00
filesystems.c
fs-writeback.c fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages 2022-06-14 18:11:44 +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 fs: fix UAF/GPF bug in nilfs_mdt_destroy 2022-10-15 07:54:36 +02:00
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/af_unix: defer registered files gc to io_uring release 2022-10-26 13:22:59 +02:00
ioctl.c
Kconfig
Kconfig.binfmt
libfs.c libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value 2023-01-18 11:40:55 +01:00
locks.c
Makefile
mbcache.c mbcache: Avoid nesting of cache->c_list_lock under bit locks 2023-01-18 11:41:59 +01:00
mount.h
mpage.c
namei.c mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-25 17:42:22 +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: terminate at peers of source 2023-01-18 11:41:44 +01:00
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 io_uring: disable polling pollfree files 2022-09-05 10:27:47 +02:00
splice.c Revert "fs: check FMODE_LSEEK to control internal pipe splicing" 2022-10-17 17:24:32 +02:00
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: open userfaultfds with O_RDONLY 2022-10-26 13:22:21 +02:00
utimes.c
xattr.c fs: don't audit the capability check in simple_xattr_list() 2023-01-18 11:40:53 +01:00