OpenCloudOS-Kernel/fs
Jan Kara bf470202dd fs: gracefully handle ->get_block not mapping bh in __mpage_writepage
When filesystem's ->get_block function does not map the buffer head when
called from __mpage_writepage(), __mpage_writepage() will happily go and
pass bogus bdev and block number to bio allocation routines which leads to
crashes sooner or later.

E.g.  UDF can do this because it doesn't want to allocate blocks from
->writepages callbacks.  It allocates blocks on write or page fault but
writeback can still spot dirty buffers without underlying blocks allocated
e.g.  if blocksize < pagesize, the tail page is dirtied (which means all
its buffers are dirtied), and truncate extends the file so that some
buffer starts to be within i_size.

Link: https://lkml.kernel.org/r/20230126085155.26395-1-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-02 22:50:07 -08:00
..
9p 9p-for-6.2-rc1 2022-12-23 11:39:18 -08:00
adfs fs: Convert block_read_full_page() to block_read_full_folio() 2022-05-09 16:21:44 -04:00
affs affs: move from strlcpy with unused retval to strscpy 2022-08-19 13:03:10 +02:00
afs rxrpc: Move call state changes from recvmsg to I/O thread 2023-01-06 09:43:33 +00:00
autofs autofs: remove unused ino field inode 2022-07-17 17:31:42 -07:00
befs befs: Convert befs_symlink_read_folio() to use a folio 2022-08-02 12:34:03 -04:00
bfs fs: Convert block_read_full_page() to block_read_full_folio() 2022-05-09 16:21:44 -04:00
btrfs for-6.2-rc2-tag 2023-01-06 12:01:49 -08:00
cachefiles fscache,cachefiles: add prepare_ondemand_read() callback 2022-12-07 10:56:29 +08:00
ceph ceph: avoid use-after-free in ceph_fl_release_lock() 2023-01-02 12:27:25 +01:00
cifs cifs: Fix uninitialized memory read for smb311 posix symlink create 2023-01-12 09:51:48 -06:00
coda coda: Convert coda_symlink_filler() to use a folio 2022-08-02 12:34:03 -04:00
configfs configfs: fix possible memory leak in configfs_create_dir() 2022-12-02 11:11:22 +01:00
cramfs cramfs: Kconfig: fix spelling & punctuation 2023-02-02 22:50:07 -08:00
crypto for-6.2/block-2022-12-08 2022-12-13 10:43:59 -08:00
debugfs debugfs: fix error when writing negative value to atomic_t debugfs file 2022-11-30 16:13:16 -08:00
devpts
dlm Treewide: Stop corrupting socket's task_frag 2022-12-19 17:28:49 -08:00
ecryptfs ecryptfs: use stub posix acl handlers 2022-10-20 10:13:31 +02:00
efivarfs efi: vars: prohibit reading random seed variables 2022-12-01 09:51:21 +01:00
efs efs: Convert efs symlinks to read_folio 2022-05-09 16:21:45 -04:00
erofs Changes since the last update: 2022-12-12 20:14:04 -08:00
exfat Description for this pull request: 2022-12-15 18:14:21 -08:00
exportfs exportfs: use pr_debug for unreachable debug statements 2022-11-28 12:54:45 -05:00
ext2 \n 2022-12-12 20:32:50 -08:00
ext4 fs/ext4: use try_cmpxchg in ext4_update_bh_state 2023-02-02 22:50:07 -08:00
f2fs f2fs: let's avoid panic if extent_tree is not created 2023-01-03 08:59:06 -08:00
fat fat: fix return value of vfat_bad_char() and vfat_replace_char() functions 2023-02-02 22:50:04 -08:00
freevxfs freevxfs: fix kernel-doc warnings 2023-02-02 22:50:03 -08:00
fscache iov_iter work; most of that is about getting rid of 2022-12-12 18:29:54 -08:00
fuse MM patches for 6.2-rc1. 2022-12-13 19:29:45 -08:00
gfs2 gfs2 fixes 2022-12-17 08:18:04 -06:00
hfs fs: hfs: initialize fsdata in hfs_file_truncate() 2023-02-02 22:50:06 -08:00
hfsplus fs: hfsplus: initialize fsdata in hfsplus_file_truncate() 2023-02-02 22:50:06 -08:00
hostfs hostfs: move from strlcpy with unused retval to strscpy 2022-09-19 22:46:25 +02:00
hpfs hpfs: remove ->writepage 2022-12-11 18:12:18 -08:00
hugetlbfs hugetlbfs: inode: remove unnecessary (void*) conversions 2022-11-30 15:58:56 -08:00
iomap New XFS code for 6.2: 2022-12-14 10:11:51 -08:00
isofs - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
jbd2 jbd2: switch jbd2_submit_inode_data() to use fs-provided hook for data writeout 2022-12-08 21:49:25 -05:00
jffs2 fs: rename current get acl method 2022-10-20 10:13:27 +02:00
jfs MM patches for 6.2-rc1. 2022-12-13 19:29:45 -08:00
kernfs kernfs: fix all kernel-doc warnings and multiple typos 2022-11-23 19:28:26 +01:00
ksmbd ksmbd: fix infinite loop in ksmbd_conn_handler_loop() 2023-01-01 22:49:24 -06:00
lockd NFSD 6.2 Release Notes 2022-12-12 20:54:39 -08:00
minix vfs: open inside ->tmpfile() 2022-09-24 07:00:00 +02:00
netfs use less confusing names for iov_iter direction initializers 2022-11-25 13:01:55 -05:00
nfs NFS client fixes for Linux 6.2 2023-01-07 10:38:11 -08:00
nfs_common
nfsd nfsd-6.2 fixes: 2023-01-10 15:03:06 -06:00
nilfs2 treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
nls
notify Merge tag 'fsnotify-for_v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2022-10-07 08:28:50 -07:00
ntfs ntfs: fix multiple kernel-doc warnings 2023-02-02 22:50:03 -08:00
ntfs3 fs/ntfs3: don't hold ni_lock when calling truncate_setsize() 2023-01-02 10:31:09 -08:00
ocfs2 Treewide: Stop corrupting socket's task_frag 2022-12-19 17:28:49 -08:00
omfs omfs: remove ->writepage 2022-12-11 18:12:18 -08:00
openpromfs
orangefs orangefs: four fixes from Zhang Xiaoxu and two from Colin Ian King 2022-12-14 11:16:33 -08:00
overlayfs overlayfs update for 6.2 2022-12-12 20:18:26 -08:00
proc proc: mark /proc/cmdline as permanent 2023-02-02 22:50:02 -08:00
pstore pstore updates for v6.2-rc1-fixes 2022-12-23 11:55:54 -08:00
qnx4 fs: Convert block_read_full_page() to block_read_full_folio() 2022-05-09 16:21:44 -04:00
qnx6 fs/qnx6: delete unnecessary checks before brelse() 2022-09-11 21:55:07 -07:00
quota ext4: fix bug_on in __es_tree_search caused by bad quota inode 2022-12-08 21:49:23 -05:00
ramfs tmpfile API change 2022-10-10 19:45:17 -07:00
reiserfs lsm/stable-6.2 PR 20221212 2022-12-13 09:47:48 -08:00
romfs romfs: Convert romfs to read_folio 2022-05-09 16:21:46 -04:00
smbfs_common smb3: define missing create contexts 2022-10-05 01:55:27 -05:00
squashfs fs.idmapped.squashfs.v6.2 2022-12-12 20:24:51 -08:00
sysfs
sysv fs: sysv: Fix sysv_nblocks() returns wrong value 2022-12-10 14:13:37 -05:00
tracefs tracefs: Only clobber mode/uid/gid on remount if asked 2022-09-08 17:10:54 -04:00
ubifs treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
udf udf: initialize newblock to 0 2023-01-06 15:44:32 +01:00
ufs ufs: replace ll_rw_block() 2022-09-11 20:26:07 -07:00
unicode
vboxsf vboxsf: Convert vboxsf to read_folio 2022-05-09 16:21:46 -04:00
verity fsverity: simplify fsverity_get_digest() 2022-11-29 21:07:41 -08:00
xfs xfs: fix extent busy updating 2023-01-05 07:34:21 -08:00
zonefs zonefs: Fix active zone accounting 2022-11-25 17:01:22 +09:00
Kconfig hugetlb: make hugetlb depends on SYSFS or SYSCTL 2022-09-11 20:26:10 -07:00
Kconfig.binfmt Xtensa updates for v6.1 2022-10-10 14:21:11 -07:00
Makefile a.out: Remove the a.out implementation 2022-09-27 07:11:02 -07:00
aio.c use less confusing names for iov_iter direction initializers 2022-11-25 13:01:55 -05:00
anon_inodes.c dynamic_dname(): drop unused dentry argument 2022-08-20 11:34:04 -04:00
attr.c attr: use consistent sgid stripping checks 2022-10-18 10:09:47 +02:00
bad_inode.c fs: rename current get acl method 2022-10-20 10:13:27 +02:00
binfmt_elf.c elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size} 2023-01-05 15:12:12 +00:00
binfmt_elf_fdpic.c elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size} 2023-01-05 15:12:12 +00:00
binfmt_elf_test.c
binfmt_flat.c binfmt_flat: Remove shared library support 2022-04-22 10:57:18 -07:00
binfmt_misc.c binfmt_misc: fix shift-out-of-bounds in check_special_flags 2022-12-02 13:57:04 -08:00
binfmt_script.c
buffer.c - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
char_dev.c chardev: fix error handling in cdev_device_add() 2022-12-02 17:48:59 +01:00
compat_binfmt_elf.c
coredump.c hardening updates for v6.2-rc1 2022-12-14 12:20:00 -08:00
d_path.c d_path.c: typo fix... 2022-08-20 11:34:33 -04:00
dax.c fsdax,xfs: port unshare to fsdax 2022-12-11 18:12:17 -08:00
dcache.c tmpfile API change 2022-10-10 19:45:17 -07:00
direct-io.c block: remove PSI accounting from the bio layer 2022-09-20 08:24:38 -06:00
drop_caches.c
eventfd.c eventfd: provide a eventfd_signal_mask() helper 2022-11-22 06:07:55 -07:00
eventpoll.c eventpoll: add EPOLL_URING_WAKE poll wakeup flag 2022-11-21 07:45:29 -07:00
exec.c fs.vfsuid.conversion.v6.2 2022-12-12 19:20:05 -08:00
fcntl.c keep iocb_flags() result cached in struct file 2022-06-10 16:10:23 -04:00
fhandle.c do_sys_name_to_handle(): constify path 2022-09-01 17:36:39 -04:00
file.c fs: use acquire ordering in __fget_light() 2022-10-31 15:30:11 -04:00
file_table.c locks: fix TOCTOU race when granting write lease 2022-08-16 10:59:54 -04:00
filesystems.c
fs-writeback.c for-6.2/writeback-2022-12-12 2022-12-15 18:09:48 -08:00
fs_context.c
fs_parser.c ext4: journal_path mount options should follow links 2022-12-01 10:46:54 -05:00
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c uninline may_mount() and don't opencode it in fspick(2)/fsopen(2) 2022-05-19 23:25:10 -04:00
init.c
inode.c fs.vfsuid.conversion.v6.2 2022-12-12 19:20:05 -08:00
internal.h fs.ovl.setgid.v6.2 2022-12-12 19:03:10 -08:00
ioctl.c
kernel_read_file.c fs/kernel_read_file: allow to read files up-to ssize_t 2022-06-16 19:58:21 -07:00
libfs.c libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value 2022-11-30 16:13:16 -08:00
locks.c Add process name and pid to locks warning 2022-11-30 05:08:10 -05:00
mbcache.c ext4: fix deadlock due to mbcache entry corruption 2022-12-08 21:49:25 -05:00
mount.h switch try_to_unlazy_next() to __legitimize_mnt() 2022-07-05 16:18:21 -04:00
mpage.c fs: gracefully handle ->get_block not mapping bh in __mpage_writepage 2023-02-02 22:50:07 -08:00
namei.c Landlock updates for v6.2-rc1 2022-12-13 09:14:50 -08:00
namespace.c fs.idmapped.mnt_idmap.v6.2 2022-12-12 19:30:18 -08:00
no-block.c
nsfs.c dynamic_dname(): drop unused dentry argument 2022-08-20 11:34:04 -04:00
open.c Landlock updates for v6.2-rc1 2022-12-13 09:14:50 -08:00
pipe.c dynamic_dname(): drop unused dentry argument 2022-08-20 11:34:04 -04:00
pnode.c pnode: terminate at peers of source 2022-12-21 14:45:25 +01:00
pnode.h
posix_acl.c fs.idmapped.mnt_idmap.v6.2 2022-12-12 19:30:18 -08:00
proc_namespace.c vfs: escape hash as well 2022-06-28 13:58:05 -04:00
read_write.c iov_iter work; most of that is about getting rid of 2022-12-12 18:29:54 -08:00
readdir.c Change calling conventions for filldir_t 2022-08-17 17:25:04 -04:00
remap_range.c New VFS code for 6.2: 2022-12-13 10:26:38 -08:00
select.c
seq_file.c use less confusing names for iov_iter direction initializers 2022-11-25 13:01:55 -05:00
signalfd.c
splice.c use less confusing names for iov_iter direction initializers 2022-11-25 13:01:55 -05:00
stack.c
stat.c fs: use type safe idmapping helpers 2022-10-26 10:02:34 +02:00
statfs.c
super.c misc pile 2022-12-12 18:38:47 -08:00
sync.c riscv: compat: syscall: Add compat_sys_call_table implementation 2022-04-26 13:36:25 -07:00
sysctls.c
timerfd.c
userfaultfd.c fs/userfaultfd: Fix maple tree iterator in userfaultfd_unregister() 2022-11-07 12:58:26 -08:00
utimes.c
xattr.c fs.xattr.simple.rework.rbtree.rwlock.v6.2 2022-12-13 10:08:36 -08:00