Jann Horn 8c78303eaf fuse: Initialize beyond-EOF page contents before setting uptodate ... commit 3c0da3d163eb32f1f91891efaade027fa9b245b9 upstream. fuse_notify_store(), unlike fuse_do_readpage(), does not enable page zeroing (because it can be used to change partial page contents). So fuse_notify_store() must be more careful to fully initialize page contents (including parts of the page that are beyond end-of-file) before marking the page uptodate. The current code can leave beyond-EOF page contents uninitialized, which makes these uninitialized page contents visible to userspace via mmap(). This is an information leak, but only affects systems which do not enable init-on-alloc (via CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y or the corresponding kernel command line parameter). Link: https://bugs.chromium.org/p/project-zero/issues/detail?id=2574 Cc: stable@kernel.org Fixes: a1d75f2582 ("fuse: add store request") Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-09-04 13:23:14 +02:00
..
9p	fs/9p: drop inodes immediately on non-.L too	2024-05-17 11:50:55 +02:00
adfs	…
affs	affs: initialize fsdata in affs_truncate()	2023-02-01 08:27:06 +01:00
afs	afs: Don't cross .backup mountpoint from backup volume	2024-06-16 13:39:53 +02:00
autofs	autofs: fix memory leak of waitqueues in autofs_catatonic_mode	2023-09-23 11:09:54 +02:00
befs	…
bfs	…
btrfs	btrfs: fix double inode unlock for direct IO sync writes	2024-08-19 05:45:49 +02:00
cachefiles	cachefiles: fix memory leak in cachefiles_add_cache()	2024-03-06 14:38:50 +00:00
ceph	ceph: fix incorrect kmalloc size of pagevec mempool	2024-08-19 05:45:26 +02:00
cifs	cifs: fix typo in module parameter enable_gcm_256	2024-07-05 09:14:40 +02:00
coda	coda: Avoid partial allocation of sig_inputArgs	2023-03-10 09:39:50 +01:00
configfs	configfs: fix possible memory leak in configfs_create_dir()	2022-12-31 13:14:15 +01:00
cramfs	…
crypto	fscrypt: fix keyring memory leak on mount failure	2022-11-10 18:15:37 +01:00
debugfs	debugfs: fix automount d_fsdata usage	2024-01-25 14:52:27 -08:00
devpts	…
dlm	dlm: fix plock lookup when using multiple lockspaces	2023-09-19 12:22:52 +02:00
ecryptfs	ecryptfs: Fix buffer size for tag 66 packet	2024-06-16 13:39:16 +02:00
efivarfs	efivarfs: force RO when remounting if SetVariable is not supported	2024-01-25 14:52:33 -08:00
efs	…
erofs	erofs: apply proper VMA alignment for memory mapped files on THP	2024-03-15 10:48:15 -04:00
exfat	exfat: support dynamic allocate bh for exfat_entry_set_cache	2024-03-01 13:21:56 +01:00
exportfs	exportfs: use pr_debug for unreachable debug statements	2024-04-10 16:19:21 +02:00
ext2	ext2: Verify bitmap and itable block numbers before using them	2024-08-19 05:45:12 +02:00
ext4	ext4: fix wrong unit use in ext4_mb_find_by_goal	2024-08-19 05:45:39 +02:00
f2fs	f2fs: fix to don't dirty inode for readonly filesystem	2024-08-19 05:44:49 +02:00
fat	fat: fix uninitialized field in nostale filehandles	2024-04-10 16:18:35 +02:00
freevxfs	…
fscache	…
fuse	fuse: Initialize beyond-EOF page contents before setting uptodate	2024-09-04 13:23:14 +02:00
gfs2	gfs2: Fix "ignore unlock failures after withdraw"	2024-06-16 13:39:20 +02:00
hfs	hfs: fix to initialize fields of hfs_inode_info after hfs_alloc_inode()	2024-08-19 05:45:12 +02:00
hfsplus	hfsplus: fix to avoid false alarm of circular locking	2024-08-19 05:44:50 +02:00
hostfs	…
hpfs	…
hugetlbfs	fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super	2024-03-06 14:38:50 +00:00
iomap	iomap: update ki_pos a little later in iomap_dio_complete	2023-12-08 08:48:05 +01:00
isofs	isofs: handle CDs with bad root inode but good Joliet root directory	2024-04-13 13:01:44 +02:00
jbd2	jbd2: avoid memleak in jbd2_journal_write_metadata_buffer	2024-08-19 05:45:39 +02:00
jffs2	jffs2: Fix potential illegal address access in jffs2_free_inode	2024-07-18 13:07:29 +02:00
jfs	jfs: Fix array-index-out-of-bounds in diFree	2024-08-19 05:45:23 +02:00
kernfs	fs/kernfs/dir: obey S_ISGID	2024-02-23 08:54:51 +01:00
ksmbd	ksmbd: ignore trailing slashes in share paths	2024-07-05 09:14:37 +02:00
lockd	Revert "lockd: introduce safe async lock op"	2024-04-27 17:05:23 +02:00
minix	minix: fix bug when opening a file with O_DIRECT	2022-04-13 20:59:10 +02:00
netfs	…
nfs	NFSv4.1 another fix for EXCHGID4_FLAG_USE_PNFS_DS for DS server	2024-08-19 05:45:03 +02:00
nfs_common	…
nfsd	knfsd: LOOKUP can return an illegal error value	2024-07-05 09:14:21 +02:00
nilfs2	nilfs2: handle inconsistent state in nilfs_btnode_create_block()	2024-08-19 05:45:22 +02:00
nls	fs/nls: make load_nls() take a const parameter	2023-09-19 12:22:27 +02:00
notify	fanotify: Remove obsoleted fanotify_event_has_path()	2024-04-10 16:19:19 +02:00
ntfs	ntfs: check overflow when iterating ATTR_RECORDs	2022-11-26 09:24:52 +01:00
ntfs3	fs/ntfs3: Update log->page_{mask,bits} if log->page_size changed	2024-08-19 05:45:16 +02:00
ocfs2	ocfs2: add bounds checking to ocfs2_check_dir_entry()	2024-07-27 10:46:16 +02:00
omfs	…
openpromfs	openpromfs: finish conversion to the new mount API	2024-06-16 13:39:16 +02:00
orangefs	orangefs: fix out-of-bounds fsid access	2024-07-18 13:07:29 +02:00
overlayfs	ima: detect changes to the backing overlay file	2023-11-28 16:56:29 +00:00
proc	sysctl: always initialize i_uid/i_gid	2024-08-19 05:45:28 +02:00
pstore	pstore/zone: Add a null pointer check to the psz_kmsg_read	2024-04-13 13:01:43 +02:00
qnx4	…
qnx6	…
quota	quota: Fix rcu annotations of inode dquot pointers	2024-03-26 18:21:27 -04:00
ramfs	shmem: use ramfs_kill_sb() for kill_sb method of ramfs-based tmpfs	2023-07-23 13:47:33 +02:00
reiserfs	reiserfs: Check the return value from __getblk()	2023-09-19 12:22:30 +02:00
romfs	…
smbfs_common	…
squashfs	revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"	2023-02-22 12:57:07 +01:00
sysfs	fs: sysfs: Fix reference leak in sysfs_break_active_protection()	2024-04-27 17:05:28 +02:00
sysv	sysv: don't call sb_bread() with pointers_lock held	2024-04-13 13:01:44 +02:00
tracefs	tracefs: Add missing lockdown check to tracefs_create_dir()	2023-09-23 11:10:02 +02:00
ubifs	ubifs: Set page uptodate in the correct place	2024-04-10 16:18:35 +02:00
udf	udf: prevent integer overflow in udf_bitmap_free_blocks()	2024-08-19 05:45:37 +02:00
ufs	…
unicode	…
vboxsf	vboxsf: Avoid an spurious warning if load_nls_xxx() fails	2024-04-10 16:19:38 +02:00
verity	fsverity: skip PKCS#7 parser when keyring is empty	2023-09-19 12:22:52 +02:00
xfs	xfs: fix log recovery buffer allocation for the legacy h_size fixup	2024-08-19 05:45:49 +02:00
zonefs	zonefs: Improve error handling	2024-03-01 13:21:43 +01:00
Kconfig	NFSD: Remove CONFIG_NFSD_V3	2024-04-10 16:19:01 +02:00
Kconfig.binfmt	…
Makefile	io_uring: move to separate directory	2022-12-14 11:37:31 +01:00
aio.c	fs/aio: Check IOCB_AIO_RW before the struct aio_kiocb conversion	2024-04-10 16:18:46 +02:00
anon_inodes.c	…
attr.c	attr: block mode changes of symlinks	2023-09-23 11:10:01 +02:00
bad_inode.c	…
binfmt_aout.c	…
binfmt_elf.c	fs/binfmt_elf: Fix memory leak in load_elf_binary()	2022-11-03 23:59:12 +09:00
binfmt_elf_fdpic.c	fs: binfmt_elf_efpic: fix personality for ELF-FDPIC	2023-10-06 13:18:24 +02:00
binfmt_flat.c	binfmt_flat: Fix corruption when not offsetting data start	2024-08-19 05:45:52 +02:00
binfmt_misc.c	binfmt_misc: fix shift-out-of-bounds in check_special_flags	2022-12-31 13:14:39 +01:00
binfmt_script.c	…
buffer.c	mm: fs: initialize fsdata passed to write_begin/write_end interface	2022-11-26 09:24:51 +01:00
char_dev.c	chardev: fix error handling in cdev_device_add()	2022-12-31 13:14:30 +01:00
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	…
dax.c	fsdax: Fix infinite loop in dax_iomap_rw()	2022-09-28 11:11:56 +02:00
dcache.c	fs: better handle deep ancestor chains in is_subdir()	2024-07-27 10:46:13 +02:00
direct-io.c	…
drop_caches.c	…
eventfd.c	eventfd: prevent underflow for eventfd semaphores	2023-09-19 12:22:30 +02:00
eventpoll.c	epoll: be better about file lifetimes	2024-06-16 13:39:15 +02:00
exec.c	exec: Fix ToCToU between perm check and set-uid/gid usage	2024-08-19 05:45:51 +02:00
fcntl.c	…
fhandle.c	do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak	2024-03-26 18:21:14 -04:00
file.c	protect the fetch of ->fd[fd] in do_dup2() from mispredictions	2024-08-19 05:45:33 +02:00
file_table.c	locks: fix TOCTOU race when granting write lease	2022-10-26 12:34:58 +02:00
filesystems.c	…
fs-writeback.c	writeback, cgroup: switch inodes with dirty timestamps to release dying cgwbs	2023-11-20 11:08:13 +01:00
fs_context.c	fs: avoid empty option when generating legacy mount string	2023-07-23 13:47:34 +02:00
fs_parser.c	…
fs_pin.c	…
fs_struct.c	…
fs_types.c	…
fsopen.c	…
init.c	…
inode.c	fs: add ctime accessors infrastructure	2023-12-08 08:48:04 +01:00
internal.h	nfs: use vfs setgid helper	2023-08-30 16:18:19 +02:00
ioctl.c	lsm: new security_file_ioctl_compat() hook	2024-02-23 08:54:25 +01:00
kernel_read_file.c	…
libfs.c	libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value	2022-12-31 13:14:03 +01:00
locks.c	filelock: Fix fcntl/close race recovery compat path	2024-07-27 10:46:17 +02:00
mbcache.c	mbcache: Avoid nesting of cache->c_list_lock under bit locks	2023-01-12 11:59:20 +01:00
mount.h	…
mpage.c	…
namei.c	rename(): fix the locking of subdirectories	2024-02-23 08:54:26 +01:00
namespace.c	fs: indicate request originates from old mount API	2024-01-25 14:52:35 -08:00
no-block.c	…
nsfs.c	…
open.c	ftruncate: pass a signed offset	2024-07-05 09:14:50 +02:00
pipe.c	fs/pipe: Fix lockdep false-positive in watchqueue pipe_write()	2024-04-10 16:19:42 +02:00
pnode.c	pnode: terminate at peers of source	2023-01-12 11:58:47 +01:00
pnode.h	…
posix_acl.c	fs: fix acl translation	2022-07-02 16:41:17 +02:00
proc_namespace.c	fs: add is_idmapped_mnt() helper	2022-07-02 16:41:14 +02:00
read_write.c	vfs: fix copy_file_range() averts filesystem freeze protection	2022-12-19 12:36:39 +01:00
readdir.c	…
remap_range.c	fs/remap: constrain dedupe of EOF blocks	2022-07-21 21:24:14 +02:00
select.c	fs/select: rework stack allocation hack for clang	2024-03-26 18:21:15 -04:00
seq_file.c	rxrpc: Fix locking issue	2022-07-12 16:35:08 +02:00
signalfd.c	…
splice.c	Revert "fs: check FMODE_LSEEK to control internal pipe splicing"	2022-10-26 12:34:17 +02:00
stack.c	…
stat.c	stat: fix inconsistency between struct stat and struct compat_stat	2022-04-27 14:38:57 +02:00
statfs.c	statfs: enforce statfs[64] structure initialization	2023-05-24 17:36:54 +01:00
super.c	fs: don't allow non-init s_user_ns for filesystems without FS_USERNS_MOUNT	2024-08-19 05:45:27 +02:00
sync.c	vfs: make sync_filesystem return errors from ->sync_fs	2022-04-27 14:38:50 +02:00
timerfd.c	…
userfaultfd.c	Fix userfaultfd_api to return EINVAL as expected	2024-07-18 13:07:42 +02:00
utimes.c	…
xattr.c	fs: don't audit the capability check in simple_xattr_list()	2022-12-31 13:14:01 +01:00