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Pavel Begunkov 5f798beaf3 io_uring: fix double prep iovec leak 
Requests may be prepared multiple times with ->io allocated (i.e. async
prepared). Preparation functions don't handle it and forget about
previously allocated resources. This may happen in case of:
- spurious defer_check
- non-head (i.e. async prepared) request executed in sync (via nxt).

Make the handlers check, whether they already allocated resources, which
is true IFF REQ_F_NEED_CLEANUP is set.

Cc: stable@vger.kernel.org # 5.5
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-02-08 13:07:00 -07:00
..
9p
9p pull request for inclusion in 5.4
2019-09-27 15:10:34 -07:00
adfs
fs/adfs: bigdir: Fix an error code in adfs_fplus_read()
2020-01-25 11:31:59 -05:00
affs
affs: fix a memory leak in affs_remount
2019-11-18 14:26:43 +01:00
afs
afs: Fix characters allowed into cell names
2020-01-26 08:54:04 -08:00
autofs
Merge branch 'next.autofs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-12-05 17:11:48 -08:00
befs
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
bfs
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
btrfs
for-5.6-tag
2020-02-03 17:03:42 +00:00
cachefiles
…
ceph
We have:
2020-02-06 12:21:01 +00:00
cifs
Merge branch 'imm.timestamp' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-02-05 05:02:42 +00:00
coda
y2038: add inode timestamp clamping
2019-09-19 09:42:37 -07:00
configfs
utimes: Clamp the timestamps in notify_change()
2019-12-08 19:10:50 -05:00
cramfs
cramfs: fix usage on non-MTD device
2019-11-23 21:44:49 -05:00
crypto
fscrypt: improve format of no-key names
2020-01-22 14:50:03 -08:00
debugfs
Merge branch 'work.recursive_removal' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-02-05 05:09:46 +00:00
devpts
devpts_pty_kill(): don't bother with d_delete()
2019-09-03 09:30:56 -04:00
dlm
dlm: use SO_SNDTIMEO_NEW instead of SO_SNDTIMEO_OLD
2019-12-18 18:07:31 +01:00
ecryptfs
crypto: skcipher - remove crypto_skcipher::keysize
2019-12-11 16:36:56 +08:00
efivarfs
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
efs
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
erofs
erofs: clean up z_erofs_submit_queue()
2020-01-21 16:46:23 +08:00
exportfs
race in exportfs_decode_fh()
2019-11-11 09:21:59 -05:00
ext2
ext2: Adjust indentation in ext2_fill_super
2020-01-06 10:09:35 +01:00
ext4
treewide: remove redundant IS_ERR() before error code check
2020-02-04 03:05:27 +00:00
f2fs
Merge branch 'imm.timestamp' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-02-05 05:02:42 +00:00
fat
Merge branch 'imm.timestamp' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-02-05 05:02:42 +00:00
freevxfs
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
fscache
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
fuse
fuse: fix fuse_send_readpages() in the syncronous read case
2020-01-16 11:09:36 +01:00
gfs2
Revert "gfs2: eliminate tr_num_revoke_rm"
2020-01-28 15:04:53 +01:00
hfs
hfs/hfsplus: use 64-bit inode timestamps
2019-12-18 18:07:32 +01:00
hfsplus
hfs/hfsplus: use 64-bit inode timestamps
2019-12-18 18:07:32 +01:00
hostfs
hostfs: pass 64-bit timestamps to/from user space
2019-12-18 18:07:32 +01:00
hpfs
fs: compat_ioctl: move FITRIM emulation into file systems
2019-10-23 17:23:46 +02:00
hugetlbfs
mm/hugetlbfs: fix for_each_hstate() loop in init_hugetlbfs_fs()
2020-01-03 10:39:08 -08:00
iomap
fs: Fix page_mkwrite off-by-one errors
2020-01-06 08:58:23 -08:00
isofs
y2038: add inode timestamp clamping
2019-09-19 09:42:37 -07:00
jbd2
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
jffs2
Revert "jffs2: Fix possible null-pointer dereferences in jffs2_add_frag_to_fragtree()"
2019-11-29 11:29:58 +01:00
jfs
Trivial cleanup for jfs
2020-02-05 05:28:20 +00:00
kernfs
Merge branch 'imm.timestamp' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-02-05 05:02:42 +00:00
lockd
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
minix
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
nfs
y2038: core, driver and file system changes
2020-01-29 14:55:47 -08:00
nfs_common
…
nfsd
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
nilfs2
fs: compat_ioctl: move FITRIM emulation into file systems
2019-10-23 17:23:46 +02:00
nls
…
notify
fs: call fsnotify_sb_delete after evict_inodes
2019-12-18 00:03:01 -05:00
ntfs
utimes: Clamp the timestamps in notify_change()
2019-12-08 19:10:50 -05:00
ocfs2
treewide: remove redundant IS_ERR() before error code check
2020-02-04 03:05:27 +00:00
omfs
fs: omfs: Initialize filesystem timestamp ranges
2019-08-30 08:11:25 -07:00
openpromfs
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
orangefs
orangefs: posix open permission checking...
2019-12-04 08:52:55 -05:00
overlayfs
ovl: fix lseek overflow on 32bit
2020-02-03 11:41:53 +01:00
proc
Tracing updates:
2020-02-06 07:12:11 +00:00
pstore
pstore/ram: Regularize prz label allocation lifetime
2020-01-08 17:05:45 -08:00
qnx4
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
qnx6
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
quota
\n
2020-01-30 15:37:41 -08:00
ramfs
vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API
2019-09-12 21:05:34 -04:00
reiserfs
Merge branch 'akpm' (patches from Andrew)
2020-01-31 12:16:36 -08:00
romfs
Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-09-19 10:06:57 -07:00
squashfs
Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-09-19 10:06:57 -07:00
sysfs
treewide: remove redundant IS_ERR() before error code check
2020-02-04 03:05:27 +00:00
sysv
fs: sysv: Initialize filesystem timestamp ranges
2019-08-30 07:27:18 -07:00
tracefs
simple_recursive_removal(): kernel-side rm -rf for ramfs-style filesystems
2019-12-10 22:29:58 -05:00
ubifs
Merge branch 'imm.timestamp' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-02-05 05:02:42 +00:00
udf
udf: Clarify meaning of f_files in udf_statfs
2020-01-20 13:59:41 +01:00
ufs
y2038: add inode timestamp clamping
2019-09-19 09:42:37 -07:00
unicode
unicode: make array 'token' static const, makes object smaller
2019-09-17 11:48:24 -04:00
verity
fs-verity: use u64_to_user_ptr()
2020-01-14 13:28:28 -08:00
xfs
(More) new code for 5.6:
2020-02-06 07:58:38 +00:00
aio.c
aio: prevent potential eventfd recursion on poll
2020-02-03 17:27:47 -07:00
anon_inodes.c
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
attr.c
utimes: Clamp the timestamps in notify_change()
2019-12-08 19:10:50 -05:00
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
y2038: elfcore: Use __kernel_old_timeval for process times
2019-11-15 14:38:29 +01:00
binfmt_elf.c
fs/binfmt_elf.c: coredump: allow process with empty address space to coredump
2020-01-31 10:30:41 -08:00
binfmt_em86.c
…
binfmt_flat.c
fs/binfmt_flat.c: remove set but not used variable 'inode'
2019-07-16 19:23:22 -07:00
binfmt_misc.c
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
binfmt_script.c
…
block_dev.c
block: don't send uevent for empty disk when not invalidating
2019-12-02 18:49:30 -07:00
buffer.c
smp: Remove allocation mask from on_each_cpu_cond.*()
2020-01-24 20:40:09 +01:00
char_dev.c
chardev: Avoid potential use-after-free in 'chrdev_open()'
2020-01-06 20:10:26 +01:00
compat_binfmt_elf.c
y2038: elfcore: Use __kernel_old_timeval for process times
2019-11-15 14:38:29 +01:00
compat.c
…
coredump.c
coredump: split pipe command whitespace before expanding template
2019-08-03 07:02:01 -07:00
d_path.c
[PATCH] fix d_absolute_path() interplay with fsmount()
2019-08-30 19:31:09 -04:00
dax.c
New code for 5.5:
2019-11-30 10:44:49 -08:00
dcache.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-12-08 11:08:28 -08:00
dcookies.c
…
direct-io.c
fs/direct-io.c: include fs/internal.h for missing prototype
2020-01-04 13:55:09 -08:00
drop_caches.c
fs: avoid softlockups in s_inodes iterators
2019-12-18 00:03:01 -05:00
eventfd.c
eventfd: track eventfd_signal() recursion depth
2020-02-03 17:27:38 -07:00
eventpoll.c
eventpoll: support non-blocking do_epoll_ctl() calls
2020-01-29 15:45:47 -07:00
exec.c
Merge branch 'akpm' (patches from Andrew)
2020-01-31 12:16:36 -08:00
fcntl.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-12-08 11:08:28 -08:00
fhandle.c
fs/handle.c - fix up kerneldoc
2019-08-07 21:51:47 -04:00
file_table.c
vfs: Export flush_delayed_fput for use by knfsd.
2019-08-19 11:00:39 -04:00
file.c
threads-v5.6
2020-01-29 19:38:34 -08:00
filesystems.c
…
fs_context.c
vfs: subtype handling moved to fuse
2019-09-06 21:28:49 +02:00
fs_parser.c
vfs: Make fs_parse() handle fs_param_is_fd-type params better
2019-09-12 21:06:14 -04:00
fs_pin.c
switch the remnants of releasing the mountpoint away from fs_pin
2019-07-16 22:52:37 -04:00
fs_struct.c
…
fs_types.c
…
fs-writeback.c
memcg: fix a crash in wb_workfn when a device disappears
2020-01-31 10:30:36 -08:00
fsopen.c
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
inode.c
Merge branch 'imm.timestamp' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-02-05 05:02:42 +00:00
internal.h
for-5.6/io_uring-vfs-2020-01-29
2020-01-29 18:53:37 -08:00
io_uring.c
io_uring: fix double prep iovec leak
2020-02-08 13:07:00 -07:00
io-wq.c
io-wq: add support for inheriting ->fs
2020-02-08 13:06:58 -07:00
io-wq.h
io-wq: add support for inheriting ->fs
2020-02-08 13:06:58 -07:00
ioctl.c
compat_ioctl: simplify the implementation
2020-01-03 09:42:52 +01:00
Kconfig
io-wq: small threadpool implementation for io_uring
2019-10-29 12:43:00 -06:00
Kconfig.binfmt
…
libfs.c
simple_recursive_removal(): kernel-side rm -rf for ramfs-style filesystems
2019-12-10 22:29:58 -05:00
locks.c
locks: print unsigned ino in /proc/locks
2019-12-29 09:00:58 -05:00
Makefile
compat_ioctl: move sys_compat_ioctl() to ioctl.c
2020-01-03 09:42:52 +01:00
mbcache.c
…
mount.h
switch the remnants of releasing the mountpoint away from fs_pin
2019-07-16 22:52:37 -04:00
mpage.c
fs: move guard_bio_eod() after bio_set_op_attrs
2020-01-09 08:16:12 -07:00
namei.c
vfs: fix do_last() regression
2020-02-01 10:36:49 -08:00
namespace.c
fs/namespace.c: make to_mnt_ns() static
2020-01-04 13:55:09 -08:00
no-block.c
…
nsfs.c
Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-01-29 11:20:24 -08:00
open.c
fs: make build_open_flags() available internally
2020-01-20 17:01:53 -07:00
pipe.c
pipe: fix empty pipe check in pipe_write()
2019-12-22 09:47:47 -08:00
pnode.c
…
pnode.h
…
posix_acl.c
fs/posix_acl.c: fix kernel-doc warnings
2020-01-04 13:55:09 -08:00
proc_namespace.c
vfs: subtype handling moved to fuse
2019-09-06 21:28:49 +02:00
read_write.c
overlayfs update for 5.6
2020-02-04 11:45:21 +00:00
readdir.c
readdir: make user_access_begin() use the real access range
2020-01-23 10:15:28 -08:00
select.c
y2038: syscalls: change remaining timeval to __kernel_old_timeval
2019-11-15 14:38:29 +01:00
seq_file.c
seq_file: fix problem when seeking mid-record
2019-08-13 16:06:52 -07:00
signalfd.c
…
splice.c
pipe: remove 'waiting_writers' merging logic
2019-12-07 13:21:01 -08:00
stack.c
sched/rt, fs: Use CONFIG_PREEMPTION
2019-12-08 14:37:36 +01:00
stat.c
fs: make two stat prep helpers available
2020-01-20 17:03:54 -07:00
statfs.c
vfs: Fix EOVERFLOW testing in put_compat_statfs64
2019-10-03 14:21:35 -07:00
super.c
fs: call fsnotify_sb_delete after evict_inodes
2019-12-18 00:03:01 -05:00
sync.c
…
timerfd.c
timerfd: Make timerfd_settime() time namespace aware
2020-01-14 12:20:53 +01:00
userfaultfd.c
Merge branch 'akpm' (patches from Andrew)
2019-12-01 20:36:41 -08:00
utimes.c
utimes: Clamp the timestamps in notify_change()
2019-12-08 19:10:50 -05:00
xattr.c
…