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percpu_ref_kill_and_confirm called more than once on io_ring_ctx_ref_free!
WARNING: CPU: 1 PID: 5405 at lib/percpu-refcount.c:382 percpu_ref_kill_and_confirm+0x169/0x1d0 lib/percpu-refcount.c:382
Modules linked in:
CPU: 1 PID: 5405 Comm: syz-executor.3 Not tainted 5.10.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:percpu_ref_kill_and_confirm+0x169/0x1d0 lib/percpu-refcount.c:382
Code: 5d 08 48 8d 7b 08 48 89 fa 48 c1 ea 03 80 3c 02 00 75 68 48 8b 53 08 48 c7 c6 80 25 bf 89 48 c7 c7 a0 24 bf 89 e8 25 c9 09 05 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02
RSP: 0018:ffffc900019dfa88 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff888017ba3000 RCX: 0000000000000000
RDX: ffff888146f30000 RSI: ffffffff815b9465 RDI: fffff5200033bf43
RBP: ffff88806fb93000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815b78bb R11: 0000000000000000 R12: 0000000000000293
R13: 0000000000000000 R14: 0000000000000002 R15: ffff888030719318
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001ace37d CR3: 0000000026840000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 percpu_ref_kill include/linux/percpu-refcount.h:149 [inline]
 io_ring_ctx_wait_and_kill+0x2b/0x450 fs/io_uring.c:8649
 io_uring_release+0x3e/0x50 fs/io_uring.c:8687
 __fput+0x283/0x920 fs/file_table.c:280
 task_work_run+0xdd/0x190 kernel/task_work.c:140
 exit_task_work include/linux/task_work.h:30 [inline]
 do_exit+0xb89/0x2a00 kernel/exit.c:823
 do_group_exit+0x125/0x310 kernel/exit.c:920
 get_signal+0x3e9/0x2160 kernel/signal.c:2770
 arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:811
 handle_signal_work kernel/entry/common.c:147 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x124/0x200 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:302
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e149
Code: Unable to access opcode bytes at RIP 0x45e11f.
RSP: 002b:00007fa5b1e8cbe8 EFLAGS: 00000206 ORIG_RAX: 00000000000001a9
RAX: fffffffffffffff4 RBX: 0000000020000080 RCX: 000000000045e149
RDX: 00000000206d2000 RSI: 0000000020000080 RDI: 0000000000000086
RBP: 000000000119c128 R08: 0000000020000200 R09: 0000000020000200
R10: 0000000020000000 R11: 0000000000000206 R12: 00000000206d2000
R13: 0000000020ee7000 R14: 0000000020000200 R15: 0000000020000000