linux-stable/fs
Jens Axboe eb85890b29 io_uring: ensure SQPOLL startup is triggered before error shutdown
syzbot reports the following hang:

INFO: task syz-executor.0:12538 can't die for more than 143 seconds.
task:syz-executor.0  state:D stack:28352 pid:12538 ppid:  8423 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:4324 [inline]
 __schedule+0x90c/0x21a0 kernel/sched/core.c:5075
 schedule+0xcf/0x270 kernel/sched/core.c:5154
 schedule_timeout+0x1db/0x250 kernel/time/timer.c:1868
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x168/0x270 kernel/sched/completion.c:138
 io_sq_thread_finish+0x96/0x580 fs/io_uring.c:7152
 io_sq_offload_create fs/io_uring.c:7929 [inline]
 io_uring_create fs/io_uring.c:9465 [inline]
 io_uring_setup+0x1fb2/0x2c20 fs/io_uring.c:9550
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

which is due to exiting after the SQPOLL thread has been created, but
hasn't been started yet. Ensure that we always complete the startup
side when waiting for it to exit.

Reported-by: syzbot+c927c937cba8ef66dd4a@syzkaller.appspotmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-25 10:19:01 -07:00
..
9p 9p for 5.11-rc1 2020-12-21 10:28:02 -08:00
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 fs/affs: release old buffer head on error path 2021-02-09 17:11:03 +01:00
afs rxrpc: Fix deadlock around release of dst cached on udp tunnel 2021-01-29 21:38:11 -08:00
autofs file: Replace ksys_close with close_fd 2020-12-10 12:42:59 -06:00
befs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
bfs bfs: don't use WARNING: string when it's just info. 2020-12-15 22:46:18 -08:00
btrfs for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
cachefiles cachefiles: Drop superfluous readpages aops NULL check 2021-01-20 11:33:51 -08:00
ceph libceph, ceph: disambiguate ceph_connection_operations handlers 2021-01-04 17:31:32 +01:00
cifs cifs: Set CIFS_MOUNT_USE_PREFIX_PATH flag on setting cifs_sb->prepath. 2021-02-11 11:08:32 -06:00
coda
configfs configfs: fix kernel-doc markup issue 2020-11-14 10:22:45 +01:00
cramfs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
crypto f2fs-for-5.11-rc1 2020-12-17 11:18:00 -08:00
debugfs debugfs: remove return value of debugfs_create_devm_seqfile() 2020-10-30 08:37:39 +01:00
devpts
dlm fs: dlm: check on existing node address 2020-11-10 12:14:20 -06:00
ecryptfs ecryptfs: fix uid translation for setxattr on security.capability 2021-01-26 01:47:14 +00:00
efivarfs efivarfs: revert "fix memory leak in efivarfs_create()" 2020-11-25 16:55:02 +01:00
efs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
erofs erofs: initialized fields can only be observed after bit is set 2021-02-11 11:55:28 +08:00
exfat block: use an on-stack bio in blkdev_issue_flush 2021-01-27 09:51:48 -07:00
exportfs exportfs: Add a function to return the raw output from fh_to_dentry() 2020-12-09 09:39:38 -05:00
ext2 ext2: Fix fall-through warnings for Clang 2020-11-23 10:36:53 +01:00
ext4 for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
f2fs for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
fat block: use an on-stack bio in blkdev_issue_flush 2021-01-27 09:51:48 -07:00
freevxfs
fscache
fuse fuse: fix bad inode 2020-12-10 15:33:14 +01:00
gfs2 iomap: pass a flags argument to iomap_dio_rw 2021-01-23 10:06:09 -08:00
hfs fs: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
hfsplus block: use an on-stack bio in blkdev_issue_flush 2021-01-27 09:51:48 -07:00
hostfs um: hostfs: use a kmem cache for inodes 2021-02-12 21:28:55 +01:00
hpfs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
hugetlbfs mm: hugetlbfs: fix cannot migrate the fallocated HugeTLB page 2021-02-05 11:03:47 -08:00
iomap for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
isofs fs: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
jbd2 block: use an on-stack bio in blkdev_issue_flush 2021-01-27 09:51:48 -07:00
jffs2 jffs2: check the validity of dstlen in jffs2_zlib_compress() 2021-02-12 21:53:23 +01:00
jfs fs/jfs: fix potential integer overflow on shift of a int 2021-02-11 11:25:54 -06:00
kernfs kernfs: wire up ->splice_read and ->splice_write 2021-01-21 18:30:28 +01:00
lockd SUNRPC: Make trace_svc_process() display the RPC procedure symbolically 2021-01-25 09:36:23 -05:00
minix [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
nfs for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
nfs_common NFSv4_2: SSC helper should use its own config. 2021-01-28 10:55:37 -05:00
nfsd for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
nilfs2 for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
nls treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
notify fanotify: Fix sys_fanotify_mark() on native x86-32 2020-12-28 11:58:59 +01:00
ntfs fs/ntfs: remove unused variable attr_len 2020-12-15 12:13:37 -08:00
ocfs2 block: use an on-stack bio in blkdev_issue_flush 2021-01-27 09:51:48 -07:00
omfs fs: omfs: use kmemdup() rather than kmalloc+memcpy 2020-09-22 23:39:45 -04:00
openpromfs
orangefs orangefs: add splice file operations 2020-12-16 16:14:08 -05:00
overlayfs ovl: implement volatile-specific fsync error behaviour 2021-01-28 10:22:48 +01:00
proc Revert "proc: don't allow async path resolution of /proc/self components" 2021-02-23 20:32:11 -07:00
pstore pstore: Fix typo in compression option name 2021-02-18 12:27:49 -08:00
qnx4 [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
qnx6 [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
quota \n 2020-12-17 11:00:37 -08:00
ramfs ramfs: fix nommu mmap with gaps in the page cache 2020-10-16 11:11:22 -07:00
reiserfs block: use an on-stack bio in blkdev_issue_flush 2021-01-27 09:51:48 -07:00
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 squashfs: add more sanity checks in xattr id lookup 2021-02-09 17:26:44 -08:00
sysfs sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2020-10-02 12:02:30 +02:00
sysv [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
tracefs
ubifs ubifs: Fix error return code in alloc_wbufs() 2021-02-13 22:58:44 +01:00
udf udf: fix the problem that the disc content is not displayed 2021-01-18 12:06:33 +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 unicode: Add utf8_casefold_hash 2020-09-10 14:03:31 -07:00
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 fs-verity: support reading signature with ioctl 2021-02-07 14:51:19 -08:00
xfs arm64 updates for 5.12 2021-02-21 13:08:42 -08:00
zonefs for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
aio.c Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c Merge branch 'parisc-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2021-02-21 13:20:41 -08:00
binfmt_elf_fdpic.c Merge branch 'parisc-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2021-02-21 13:20:41 -08:00
binfmt_em86.c
binfmt_flat.c binfmt_flat: revert "binfmt_flat: don't offset the data start" 2020-08-24 08:49:13 +10:00
binfmt_misc.c binfmt_misc: pass binfmt_misc flags to the interpreter 2021-02-15 18:28:30 +01:00
binfmt_script.c
block_dev.c for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
buffer.c for-5.11/block-2020-12-14 2020-12-16 12:57:51 -08:00
char_dev.c
compat_binfmt_elf.c get rid of COMPAT_ELF_EXEC_PAGESIZE 2021-01-06 08:42:51 -05:00
coredump.c Merge branch 'exec-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-12-15 19:29:43 -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 mm: provide a saner PTE walking API for modules 2021-02-09 07:05:44 -05:00
dcache.c fs: Kill DCACHE_DONTCACHE dentry even if DCACHE_REFERENCED is set 2020-12-10 17:33:17 -05:00
direct-io.c block/psi: remove PSI annotations from direct IO 2021-01-25 08:58:24 -07:00
drop_caches.c
eventfd.c eventfd: Export eventfd_ctx_do_read() 2020-11-15 09:49:10 -05:00
eventpoll.c epoll: add syscall epoll_pwait2 2020-12-19 11:18:38 -08:00
exec.c tlb: mmu_gather: Remove start/end arguments from tlb_gather_mmu() 2021-01-29 20:02:29 +01:00
fcntl.c fcntl: make F_GETOWN(EX) return 0 on dead owner task 2021-02-08 07:36:13 -05:00
fhandle.c
file.c fs: provide locked helper variant of close_fd_get_file() 2021-02-01 10:02:42 -07:00
file_table.c epoll: take epitem list out of struct file 2020-10-25 20:02:08 -04:00
filesystems.c
fs-writeback.c fs: fix lazytime expiration handling in __writeback_single_inode() 2021-01-13 17:26:21 +01:00
fs_context.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
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 vfs: Use sequence counter with associated spinlock 2020-07-29 16:14:27 +02:00
fs_types.c
fsopen.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
init.c init: add an init_dup helper 2020-08-04 21:02:38 -04:00
inode.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-12-25 10:54:29 -08:00
internal.h for-5.12/io_uring-2021-02-17 2021-02-21 11:10:39 -08:00
io-wq.c io-wq: make buffered file write hashed work map per-ctx 2021-02-25 09:23:47 -07:00
io-wq.h io-wq: make buffered file write hashed work map per-ctx 2021-02-25 09:23:47 -07:00
io_uring.c io_uring: ensure SQPOLL startup is triggered before error shutdown 2021-02-25 10:19:01 -07:00
ioctl.c fs: remove ksys_ioctl 2020-07-31 08:16:01 +02:00
Kconfig Highlights: 2021-02-21 10:22:20 -08:00
Kconfig.binfmt Merge branch 'work.elf-compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-21 09:29:23 -08:00
kernel_read_file.c fs/kernel_file_read: Add "offset" arg for partial reads 2020-10-05 13:37:04 +02:00
libfs.c for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
locks.c Merge branch 'exec-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-12-15 19:29:43 -08:00
Makefile fs: Remove dcookies support 2021-01-29 10:06:46 +05:30
mbcache.c
mount.h mnt: Use generic ns_common::count 2020-08-19 14:14:19 +02:00
mpage.c
namei.c fix handling of nd->depth on LOOKUP_CACHED failures in try_to_unlazy* 2021-02-20 12:33:12 -05:00
namespace.c umount(2): move the flag validity checks first 2021-01-04 15:31:58 -05:00
no-block.c
nsfs.c
open.c fs: expose LOOKUP_CACHED through openat2() RESOLVE_CACHED 2021-01-04 11:42:26 -05:00
pipe.c fs/pipe: allow sendfile() to pipe again 2021-01-25 12:32:26 -08:00
pnode.c
pnode.h fs/namespace.c: WARN if mnt_count has become negative 2020-12-10 17:33:17 -05:00
posix_acl.c
proc_namespace.c proc mountinfo: make splice available again 2020-12-27 12:00:36 -08:00
read_write.c teach sendfile(2) to handle send-to-pipe directly 2021-01-25 23:29:36 -05:00
readdir.c fs: remove ksys_getdents64 2020-07-31 08:16:00 +02:00
remap_range.c vfs: verify source area in vfs_dedupe_file_range_one() 2020-12-14 15:26:13 +01:00
select.c poll: fix performance regression due to out-of-line __put_user() 2021-01-08 11:06:29 -08:00
seq_file.c fix return values of seq_read_iter() 2020-11-15 22:12:53 -05:00
signalfd.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
splice.c for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
stack.c
stat.c fs: remove KSTAT_QUERY_FLAGS 2020-09-26 22:55:05 -04:00
statfs.c s390,alpha: switch to 64-bit ino_t 2021-02-13 17:17:53 +01:00
super.c block: remove the NULL bdev check in bdev_read_only 2021-01-24 18:15:57 -07:00
sync.c overlayfs update for 5.8 2020-06-09 15:40:50 -07:00
timerfd.c
userfaultfd.c userfaultfd: add user-mode only option to unprivileged_userfaultfd sysctl knob 2020-12-15 12:13:46 -08:00
utimes.c fs: expose utimes_common 2020-07-31 08:16:01 +02:00
xattr.c vfs: move cap_convert_nscap() call into vfs_setxattr() 2020-12-14 15:26:13 +01:00