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lianzhi chang a9fd4ef6e5 udf: fix the problem that the disc content is not displayed 
[ Upstream commit 5cdc4a6950 ]

When the capacity of the disc is too large (assuming the 4.7G
specification), the disc (UDF file system) will be burned
multiple times in the windows (Multisession Usage). When the
remaining capacity of the CD is less than 300M (estimated
value, for reference only), open the CD in the Linux system,
the content of the CD is displayed as blank (the kernel will
say "No VRS found"). Windows can display the contents of the
CD normally.
Through analysis, in the "fs/udf/super.c": udf_check_vsd
function, the actual value of VSD_MAX_SECTOR_OFFSET may
be much larger than 0x800000. According to the current code
logic, it is found that the type of sbi->s_session is "__s32",
 when the remaining capacity of the disc is less than 300M
(take a set of test values: sector=3154903040,
sbi->s_session=1540464, sb->s_blocksize_bits=11 ), the
calculation result of "sbi->s_session << sb->s_blocksize_bits"
 will overflow. Therefore, it is necessary to convert the
type of s_session to "loff_t" (when udf_check_vsd starts,
assign a value to _sector, which is also converted in this
way), so that the result will not overflow, and then the
content of the disc can be displayed normally.

Link: https://lore.kernel.org/r/20210114075741.30448-1-changlianzhi@uniontech.com
Signed-off-by: lianzhi chang <changlianzhi@uniontech.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-07 15:37:15 +01:00
..
9p fs: 9p: add generic splice_write file operation 2020-12-01 21:40:47 +01:00
adfs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
affs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
afs afs: Fix memory leak when mounting with multiple source parameters 2020-12-08 15:59:25 -08:00
autofs autofs: harden ioctl table 2020-10-16 11:11:22 -07:00
befs
bfs bfs: don't use WARNING: string when it's just info. 2021-01-06 14:56:52 +01:00
btrfs btrfs: fix possible free space tree corruption with online conversion 2021-02-03 23:28:40 +01:00
cachefiles cachefiles: Drop superfluous readpages aops NULL check 2021-01-27 11:55:22 +01:00
ceph ceph: fix inode refcount leak when ceph_fill_inode on non-I_NEW inode fails 2021-01-06 14:56:55 +01:00
cifs cifs: do not fail __smb_send_rqst if non-fatal signals are pending 2021-01-27 11:55:13 +01:00
coda
configfs fs: configfs: delete repeated words in comments 2020-10-16 11:11:19 -07:00
cramfs
crypto fscrypt: add fscrypt_is_nokey_name() 2020-12-26 16:02:43 +01:00
debugfs debugfs: remove return value of debugfs_create_devm_seqfile() 2020-10-30 08:37:39 +01:00
devpts
dlm networking changes for the 5.10 merge window 2020-10-15 18:42:13 -07:00
ecryptfs
efivarfs efivarfs: revert "fix memory leak in efivarfs_create()" 2020-11-25 16:55:02 +01:00
efs
erofs erofs: avoid using generic_block_bmap 2020-12-30 11:53:46 +01:00
exfat exfat: Avoid allocating upcase table using kcalloc() 2020-12-26 16:02:38 +01:00
exportfs
ext2 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
ext4 ext4: fix superblock checksum failure when setting password salt 2021-01-19 18:27:31 +01:00
f2fs f2fs: fix race of pending_pages in decompression 2021-01-06 14:56:54 +01:00
fat
freevxfs
fscache
fuse fuse: fix bad inode 2021-01-09 13:46:24 +01:00
gfs2 gfs2: Fix deadlock between gfs2_{create_inode,inode_lookup} and delete_work_func 2020-12-01 00:21:10 +01:00
hfs fs: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
hfsplus fs: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
hostfs
hpfs
hugetlbfs
iomap iomap: clean up writeback state logic on writepage error 2020-11-04 08:52:46 -08:00
isofs fs: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
jbd2 jbd2: fix kernel-doc markups 2020-11-19 22:38:29 -05:00
jffs2 jffs2: Fix NULL pointer dereference in rp_size fs option parsing 2021-01-06 14:56:49 +01:00
jfs jfs: Fix array index bounds check in dbAdjTree 2020-12-30 11:54:18 +01:00
kernfs kernfs: wire up ->splice_read and ->splice_write 2021-01-27 11:55:29 +01:00
lockd lockd: don't use interval-based rebinding over TCP 2020-12-30 11:53:30 +01:00
minix
nfs pNFS/NFSv4: Update the layout barrier when we schedule a layoutreturn 2021-02-03 23:28:47 +01:00
nfs_common nfs_common: need lock during iterate through the list 2020-12-30 11:53:45 +01:00
nfsd nfsd: Don't set eof on a truncated READ_PLUS 2021-01-27 11:55:05 +01:00
nilfs2 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
nls
notify fanotify: Fix sys_fanotify_mark() on native x86-32 2021-01-17 14:16:59 +01:00
ntfs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
ocfs2 ocfs2: initialize ip_next_orphan 2020-11-14 11:26:04 -08:00
omfs
openpromfs
orangefs
overlayfs ovl: make ioctl() safe 2020-12-30 11:54:16 +01:00
proc proc_sysctl: fix oops caused by incorrect command parameters 2021-01-27 11:55:14 +01:00
pstore
qnx4
qnx6
quota quota: Don't overflow quota file offsets 2021-01-06 14:56:53 +01:00
ramfs ramfs: fix nommu mmap with gaps in the page cache 2020-10-16 11:11:22 -07:00
reiserfs reiserfs: add check for an invalid ih_entry_count 2021-01-06 14:56:52 +01:00
romfs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
squashfs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
sysfs
sysv
tracefs
ubifs ubifs: wbuf: Don't leak kernel memory to flash 2020-12-30 11:54:17 +01:00
udf udf: fix the problem that the disc content is not displayed 2021-02-07 15:37:15 +01:00
ufs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
unicode
vboxsf Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2020-10-15 15:11:56 -07:00
verity
xfs xfs: revert "xfs: fix rmap key and record comparison functions" 2020-11-19 15:17:50 -08:00
zonefs zonefs: select CONFIG_CRC32 2021-01-17 14:17:03 +01:00
aio.c vfs: separate __sb_start_write into blocking and non-blocking helpers 2020-11-10 16:53:07 -08:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c fs: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
binfmt_elf_fdpic.c binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot 2020-10-16 11:11:21 -07:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c Revert "block: simplify set_init_blocksize" to regain lost performance 2021-02-03 23:28:45 +01:00
buffer.c mm, memcg: rework remote charging API to support nesting 2020-10-18 09:27:09 -07:00
char_dev.c
compat_binfmt_elf.c
coredump.c coredump: fix core_pattern parse error 2020-12-06 10:19:07 -08:00
d_path.c fs: fix NULL dereference due to data race in prepend_path() 2020-10-14 14:54:45 -07:00
dax.c fuse update for 5.10 2020-10-19 14:28:30 -07:00
dcache.c
dcookies.c
direct-io.c \n 2020-10-15 15:03:10 -07:00
drop_caches.c
eventfd.c
eventpoll.c epoll: check for events when removing a timed out thread from the wait queue 2020-12-30 11:54:00 +01:00
exec.c exec: Transform exec_update_mutex into a rw_semaphore 2021-01-09 13:46:24 +01:00
fcntl.c fcntl: Fix potential deadlock in send_sig{io, urg}() 2021-01-06 14:56:53 +01:00
fhandle.c
file.c kernel/io_uring: cancel io_uring before task works 2021-01-30 13:55:18 +01:00
file_table.c task_work: cleanup notification modes 2020-10-17 15:05:30 -06:00
filesystems.c
fs-writeback.c fs: fix lazytime expiration handling in __writeback_single_inode() 2021-01-27 11:54:53 +01:00
fs_context.c
fs_parser.c fs_parse: mark fs_param_bad_value() as static 2020-10-13 18:38:27 -07:00
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
init.c
inode.c fs: Handle I_DONTCACHE in iput_final() instead of generic_drop_inode() 2020-12-30 11:53:49 +01:00
internal.h
io-wq.c io-wq: cancel request if it's asking for files and we don't have them 2020-11-04 10:22:56 -07:00
io-wq.h io_uring: fix io_wqe->work_list corruption 2020-12-30 11:54:03 +01:00
io_uring.c io_uring: fix wqe->lock/completion_lock deadlock 2021-02-03 23:28:41 +01:00
ioctl.c
Kconfig
Kconfig.binfmt
kernel_read_file.c
libfs.c libfs: fix error cast of negative value in simple_attr_write() 2020-11-22 10:48:22 -08:00
locks.c
Makefile Refactored code for 5.10: 2020-10-23 11:33:41 -07:00
mbcache.c
mount.h
mpage.c
namei.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
namespace.c umount(2): move the flag validity checks first 2021-01-19 18:27:32 +01:00
no-block.c
nsfs.c
open.c openat2: reject RESOLVE_BENEATH|RESOLVE_IN_ROOT 2020-12-30 11:54:24 +01:00
pipe.c fs/pipe: allow sendfile() to pipe again 2021-01-27 11:55:29 +01:00
pnode.c
pnode.h fs/namespace.c: WARN if mnt_count has become negative 2021-01-06 14:56:54 +01:00
posix_acl.c
proc_namespace.c proc mountinfo: make splice available again 2020-12-30 11:54:02 +01:00
read_write.c Refactored code for 5.10: 2020-10-23 11:33:41 -07:00
readdir.c
remap_range.c vfs: move the remap range helpers to remap_range.c 2020-10-15 09:48:49 -07:00
select.c poll: fix performance regression due to out-of-line __put_user() 2021-01-19 18:27:27 +01:00
seq_file.c fix return values of seq_read_iter() 2020-11-15 22:12:53 -05:00
signalfd.c
splice.c io_uring-5.10-2020-10-24 2020-10-24 12:40:18 -07:00
stack.c
stat.c
statfs.c
super.c vfs: move __sb_{start,end}_write* to fs.h 2020-11-10 16:53:11 -08:00
sync.c
timerfd.c
userfaultfd.c mm: remove the now-unnecessary mmget_still_valid() hack 2020-10-16 11:11:22 -07:00
utimes.c
xattr.c fs/xattr.c: fix kernel-doc warnings for setxattr & removexattr 2020-10-13 18:38:27 -07:00