------------[ cut here ]------------ WARNING: CPU: 0 PID: 9196 at fs/io_uring.c:1147 io_put_req_find_next fs/io_uring.c:2361 [inline] WARNING: CPU: 0 PID: 9196 at fs/io_uring.c:1147 io_poll_task_func+0x68f/0x870 fs/io_uring.c:5385 Modules linked in: CPU: 0 PID: 9196 Comm: syz-executor.2 Not tainted 5.15.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:req_ref_put_and_test fs/io_uring.c:1147 [inline] RIP: 0010:req_ref_put_and_test fs/io_uring.c:1142 [inline] RIP: 0010:io_put_req_find_next fs/io_uring.c:2361 [inline] RIP: 0010:io_poll_task_func+0x68f/0x870 fs/io_uring.c:5385 Code: 00 00 00 83 c0 7f 83 f8 7f 76 1f be 04 00 00 00 4c 89 e7 e8 13 00 e0 ff f0 ff 8d 80 00 00 00 0f 85 75 fb ff ff e9 46 ff ff ff <0f> 0b eb dd e8 88 fc df ff e9 97 f9 ff ff e8 4e fc df ff e9 a3 fa RSP: 0018:ffffc9000372fda0 EFLAGS: 00010246 RAX: 000000000000007f RBX: ffff88807178ba14 RCX: ffffffff81c86788 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807178ba80 RBP: ffff88807178ba00 R08: 0000000000000000 R09: ffff88807178ba83 R10: ffffed100e2f1750 R11: ffff88805d6c0000 R12: ffff88807178ba80 R13: ffff88801da443c0 R14: ffff88805d660000 R15: 0000000000000003 FS: 00007f40ddbdd700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdfe66b720 CR3: 000000005f562000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tctx_task_work+0x151/0x4c0 fs/io_uring.c:2176 task_work_run+0xc0/0x160 kernel/task_work.c:164 tracehook_notify_signal include/linux/tracehook.h:214 [inline] handle_signal_work kernel/entry/common.c:146 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x256/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f40de467ae9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f40ddbdd188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: 000000000000047d RBX: 00007f40de57af60 RCX: 00007f40de467ae9 RDX: 0000000000000000 RSI: 000000000000450e RDI: 0000000000000006 RBP: 00007f40de4c1f25 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffde537b06f R14: 00007f40ddbdd300 R15: 0000000000022000