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Pavel Begunkov 05b538c176 io_uring: fix not locked access to fixed buf table 
We can look inside the fixed buffer table only while holding
->uring_lock, however in some cases we don't do the right async prep for
IORING_OP_{WRITE,READ}_FIXED ending up with NULL req->imu forcing making
an io-wq worker to try to resolve the fixed buffer without proper
locking.

Move req->imu setup into early req init paths, i.e. io_prep_rw(), which
is called unconditionally for rw requests and under uring_lock.

Fixes: 634d00df5e1cf ("io_uring: add full-fledged dynamic buffers support")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
2022-06-13 09:53:41 +01:00
..
9p
Netfs prep for write helpers
2022-03-31 15:49:36 -07:00
adfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
affs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
afs
afs: Fix afs_getattr() to refetch file status if callback break occurred
2022-05-22 09:25:47 -10:00
autofs
…
befs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
bfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
btrfs
for-5.19/block-2022-05-22
2022-05-23 13:56:39 -07:00
cachefiles
cachefiles: Fix KASAN slab-out-of-bounds in cachefiles_set_volume_xattr
2022-04-08 23:32:40 +01:00
ceph
ceph: check folio PG_private bit instead of folio->private
2022-05-10 09:48:31 +02:00
cifs
cifs: destage any unwritten data to the server before calling copychunk_write
2022-04-20 22:54:54 -05:00
coda
Folio changes for 5.18
2022-03-22 17:03:12 -07:00
configfs
configfs: fix a race in configfs_{,un}register_subsystem()
2022-02-22 18:30:28 +01:00
cramfs
…
crypto
fs: Remove ->readpages address space operation
2022-04-01 13:45:33 -04:00
debugfs
debugfs: Document that debugfs_create functions need not be error checked
2022-02-25 11:56:13 +01:00
devpts
fsnotify: fix fsnotify hooks in pseudo filesystems
2022-01-24 14:17:02 +01:00
dlm
driver core changes for 5.17-rc1
2022-01-12 11:11:34 -08:00
ecryptfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
efivarfs
…
efs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
erofs
erofs: fix use-after-free of on-stack io[]
2022-04-15 23:51:43 +08:00
exfat
block: add a bdev_discard_granularity helper
2022-04-17 19:49:59 -06:00
exportfs
…
ext2
\n
2022-03-25 17:38:15 -07:00
ext4
for-5.19/block-2022-05-22
2022-05-23 13:56:39 -07:00
f2fs
for-5.19/block-2022-05-22
2022-05-23 13:56:39 -07:00
fat
block: add a bdev_discard_granularity helper
2022-04-17 19:49:59 -06:00
freevxfs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
fscache
fscache: remove FSCACHE_OLD_API Kconfig option
2022-04-08 23:54:37 +01:00
fuse
fs: Remove ->readpages address space operation
2022-04-01 13:45:33 -04:00
gfs2
for-5.19/block-2022-05-22
2022-05-23 13:56:39 -07:00
hfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
hfsplus
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
hostfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
hpfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
hugetlbfs
mm, hugetlb: allow for "high" userspace addresses
2022-04-21 20:01:09 -07:00
iomap
block: ignore RWF_HIPRI hint for sync dio
2022-05-02 10:07:42 -06:00
isofs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
jbd2
for-5.19/block-2022-05-22
2022-05-23 13:56:39 -07:00
jffs2
This pull request contains fixes for JFFS2, UBI and UBIFS
2022-03-31 16:09:41 -07:00
jfs
block: add a bdev_discard_granularity helper
2022-04-17 19:49:59 -06:00
kernfs
kernfs: fix NULL dereferencing in kernfs_remove
2022-04-27 19:32:07 +02:00
ksmbd
ksmbd: set fixed sector size to FS_SECTOR_SIZE_INFORMATION
2022-04-14 20:56:13 -05:00
lockd
NFSD: Move svc_serv_ops::svo_function into struct svc_serv
2022-02-28 10:26:40 -05:00
minix
Merge branch 'akpm' (patches from Andrew)
2022-03-24 14:14:07 -07:00
netfs
netfs: Split some core bits out into their own file
2022-03-18 09:29:05 +00:00
nfs
nfs: fix broken handling of the softreval mount option
2022-05-09 13:02:54 -04:00
nfs_common
…
nfsd
NFSD bug fixes for 5.18-rc:
2022-04-12 14:23:19 -10:00
nilfs2
block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD
2022-04-17 19:49:59 -06:00
nls
…
notify
fanotify: do not allow setting dirent events in mask of non-dir
2022-05-09 11:49:09 +02:00
ntfs
ntfs: Correct mark_ntfs_record_dirty() folio conversion
2022-04-01 14:40:44 -04:00
ntfs3
block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD
2022-04-17 19:49:59 -06:00
ocfs2
block: add a bdev_discard_granularity helper
2022-04-17 19:49:59 -06:00
omfs
fs: Convert __set_page_dirty_buffers to block_dirty_folio
2022-03-16 13:37:04 -04:00
openpromfs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
orangefs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
overlayfs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
proc
procfs: prevent unprivileged processes accessing fdinfo dir
2022-05-09 17:34:28 -07:00
pstore
pstore: Don't use semaphores in always-atomic-context code
2022-03-15 11:08:23 -07:00
qnx4
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
qnx6
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
quota
quota: make dquot_quota_sync return errors from ->sync_fs
2022-01-30 08:59:47 -08:00
ramfs
…
reiserfs
\n
2022-03-25 17:38:15 -07:00
romfs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
smbfs_common
smb3: fix ksmbd bigendian bug in oplock break, and move its struct to smbfs_common
2022-03-31 09:38:53 -05:00
squashfs
block: turn bio_kmalloc into a simple kmalloc wrapper
2022-04-17 19:30:41 -06:00
sysfs
kobject: kobj_type: remove default_attrs
2022-04-05 15:39:19 +02:00
sysv
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
tracefs
tracefs: Set the group ownership in apply_options() not parse_options()
2022-02-25 21:05:04 -05:00
ubifs
This pull request contains fixes for JFFS2, UBI and UBIFS
2022-03-31 16:09:41 -07:00
udf
udf: Avoid using stale lengthOfImpUse
2022-05-10 13:30:32 +02:00
ufs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
unicode
kbuild: unify cmd_copy and cmd_shipped
2022-02-14 10:37:32 +09:00
vboxsf
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
verity
fs: Remove ->readpages address space operation
2022-04-01 13:45:33 -04:00
xfs
for-5.19/block-2022-05-22
2022-05-23 13:56:39 -07:00
zonefs
zonefs changes for 5.19-rc1
2022-05-23 14:36:45 -07:00
aio.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-04-01 19:57:03 -07:00
anon_inodes.c
…
attr.c
…
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
coredump: Snapshot the vmas in do_coredump
2022-03-08 12:55:29 -06:00
binfmt_elf_test.c
binfmt_elf: Introduce KUnit test
2022-03-03 20:38:56 -08:00
binfmt_elf.c
revert "fs/binfmt_elf: use PT_LOAD p_align values for static PIE"
2022-04-15 14:49:56 -07:00
binfmt_flat.c
coredump: Don't compile flat_core_dump when coredumps are disabled
2022-03-09 10:37:07 -06:00
binfmt_misc.c
Fix regression due to "fs: move binfmt_misc sysctl to its own file"
2022-02-09 09:50:02 -08:00
binfmt_script.c
…
buffer.c
filemap: Remove AOP_FLAG_CONT_EXPAND
2022-04-01 14:40:44 -04:00
char_dev.c
…
compat_binfmt_elf.c
binfmt_elf: Introduce KUnit test
2022-03-03 20:38:56 -08:00
coredump.c
ptrace: Cleanups for v5.18
2022-03-28 17:29:53 -07:00
d_path.c
…
dax.c
dax for 5.18
2022-03-24 18:12:09 -07:00
dcache.c
mm: dcache: use kmem_cache_alloc_lru() to allocate dentry
2022-03-22 15:57:03 -07:00
direct-io.c
direct-io: remove random prefetches
2022-04-17 19:50:02 -06:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
eventpoll: simplify sysctl declaration with register_sysctl()
2022-01-22 08:33:35 +02:00
exec.c
ptrace: Cleanups for v5.18
2022-03-28 17:29:53 -07:00
fcntl.c
fs: remove fs.f_write_hint
2022-03-08 17:55:03 -07:00
fhandle.c
…
file_table.c
SUNRPC: Ensure we flush any closed sockets before xs_xprt_free()
2022-04-07 16:19:47 -04:00
file.c
fs: fix fd table size alignment properly
2022-03-29 23:29:18 -07:00
filesystems.c
…
fs_context.c
vfs: fs_context: fix up param length parsing in legacy_parse_param
2022-01-18 09:23:19 +02:00
fs_parser.c
…
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages
2022-05-19 06:29:41 -06:00
fsopen.c
…
init.c
…
inode.c
fs: introduce alloc_inode_sb() to allocate filesystems specific inode
2022-03-22 15:57:03 -07:00
internal.h
fs: split off do_getxattr from getxattr
2022-04-24 18:18:37 -06:00
io_uring.c
io_uring: fix not locked access to fixed buf table
2022-06-13 09:53:41 +01:00
io-wq.c
io-wq: use __set_notify_signal() to wake workers
2022-04-30 08:39:54 -06:00
io-wq.h
io_uring: add support for IORING_ASYNC_CANCEL_ALL
2022-04-24 18:18:18 -06:00
ioctl.c
Fixes for 5.18-rc1:
2022-04-01 19:35:56 -07:00
Kconfig
Folio changes for 5.18
2022-03-22 17:03:12 -07:00
Kconfig.binfmt
execve updates for v5.18-rc1
2022-03-21 19:16:02 -07:00
kernel_read_file.c
…
libfs.c
fs: Convert __set_page_dirty_no_writeback to noop_dirty_folio
2022-03-16 13:37:05 -04:00
locks.c
fs: move locking sysctls where they are used
2022-01-22 08:33:36 +02:00
Makefile
Fix from Christoph Hellwig merging the CONFIG_UNICODE_UTF8_DATA into the
2022-02-01 11:13:24 -08:00
mbcache.c
…
mount.h
…
mpage.c
for-5.18/alloc-cleanups-2022-03-25
2022-03-26 11:59:30 -07:00
namei.c
VFS: filename_create(): fix incorrect intent.
2022-04-14 15:53:43 -07:00
namespace.c
fs: unset MNT_WRITE_HOLD on failure
2022-04-21 17:57:37 +02:00
no-block.c
…
nsfs.c
…
open.c
fs: remove fs.f_write_hint
2022-03-08 17:55:03 -07:00
pipe.c
Revert "fs/pipe: use kvcalloc to allocate a pipe_buffer array"
2022-04-20 12:07:53 -07:00
pnode.c
…
pnode.h
…
posix_acl.c
fs: fix acl translation
2022-04-19 10:19:02 -07:00
proc_namespace.c
…
read_write.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-04-01 19:57:03 -07:00
readdir.c
…
remap_range.c
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
select.c
select: Fix indefinitely sleeping task in poll_schedule_timeout()
2022-01-11 09:03:05 -08:00
seq_file.c
seq_file: fix NULL pointer arithmetic warning
2022-02-01 11:31:55 -05:00
signalfd.c
Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2022-01-17 05:49:30 +02:00
splice.c
mm: Convert remove_mapping() to take a folio
2022-03-21 12:59:01 -04:00
stack.c
…
stat.c
stat: fix inconsistency between struct stat and struct compat_stat
2022-04-12 13:35:08 -10:00
statfs.c
…
super.c
block: add a bdev_stable_writes helper
2022-04-17 19:49:59 -06:00
sync.c
vfs: make sync_filesystem return errors from ->sync_fs
2022-01-30 08:59:47 -08:00
sysctls.c
fs: move namespace sysctls and declare fs base directory
2022-01-22 08:33:36 +02:00
timerfd.c
…
userfaultfd.c
userfaultfd: provide unmasked address on page-fault
2022-03-22 15:57:08 -07:00
utimes.c
…
xattr.c
fs: split off do_getxattr from getxattr
2022-04-24 18:18:37 -06:00