[Android 5.10] BUG: workqueue lockup (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 416c4356f372 Merge 5.10.161 into android12-5.10-lts
git tree: android12-5.10-lts
console output: https://syzkaller.appspot.com/x/log.txt?x=163c61f2c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=ba29236d2f217808
dashboard link: https://syzkaller.appspot.com/bug?extid=94b3d6f6cf4c1e28df60
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12ff4fb0c80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13af5112c80000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/0149809cf436/disk-416c4356.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/2bf0b26aed77/vmlinux-416c4356.xz
kernel image: https://storage.googleapis.com/syzbot-assets/224b4978be5c/bzImage-416c4356.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+94b3d6...@syzkaller.appspotmail.com

kthread+0x349/0x3d0 kernel/kthread.c:313
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 246s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 245s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
pending: vmstat_shepherd, psi_avgs_work
workqueue events_unbound: flags=0x2
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/512 refcnt=3
in-flight: 7:toggle_allocation_gate
workqueue events_power_efficient: flags=0x80
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
pending: neigh_periodic_work, gc_worker, check_lifetime
workqueue mm_percpu_wq: flags=0x8
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: vmstat_update
workqueue writeback: flags=0x4a
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wb_workfn
pool 4: cpus=0-1 flags=0x4 nice=0 hung=245s workers=3 idle: 9 177


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