memory leak in create_io

similar bugs (1):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	memory leak in create_io_worker	C			5	221d	260d	22/22	fixed on 2021/11/10 00:50

Patch testing requests:
Created	Duration	User	Patch	Repo	Result
2022/03/02 03:29	7m	phind.uet@gmail.com		https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master	report log

executing program
executing program
executing program
executing program
executing program
BUG: memory leak
unreferenced object 0xffff888112ec56c0 (size 192):
  comm "syz-executor313", pid 30410, jiffies 4294958360 (age 18.100s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff816515c6>] kmalloc_node include/linux/slab.h:599 [inline]
    [<ffffffff816515c6>] kzalloc_node include/linux/slab.h:726 [inline]
    [<ffffffff816515c6>] create_io_worker+0x46/0x250 fs/io-wq.c:812
    [<ffffffff81652ab2>] create_worker_cb+0xd2/0xf0 fs/io-wq.c:331
    [<ffffffff81273853>] task_work_run+0x73/0xb0 kernel/task_work.c:164
    [<ffffffff8163dadd>] tracehook_notify_signal include/linux/tracehook.h:213 [inline]
    [<ffffffff8163dadd>] io_run_task_work fs/io_uring.c:2595 [inline]
    [<ffffffff8163dadd>] io_run_task_work fs/io_uring.c:2591 [inline]
    [<ffffffff8163dadd>] io_run_task_work_sig+0x6d/0x110 fs/io_uring.c:7684
    [<ffffffff8164ec75>] io_cqring_wait_schedule fs/io_uring.c:7701 [inline]
    [<ffffffff8164ec75>] io_cqring_wait fs/io_uring.c:7770 [inline]
    [<ffffffff8164ec75>] __do_sys_io_uring_enter+0x715/0xf60 fs/io_uring.c:10178
    [<ffffffff844b4875>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff844b4875>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84600068>] entry_SYSCALL_64_after_hwframe+0x44/0xae

Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-gce-leak	2022/02/18 23:34	upstream	7993e65fdd0f	3cd800e4	.config	log	report	syz	C		memory leak in create_io_worker
ci-upstream-gce-leak	2022/04/17 21:42	upstream	a2c29ccd9477	8bcc32a6	.config	log	report	syz			memory leak in create_io_worker