R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffcb24f8dcf R14: 00007fa8c3085300 R15: 0000000000022000 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 13026 at fs/io_uring.c:1164 req_ref_get fs/io_uring.c:1164 [inline] WARNING: CPU: 1 PID: 13026 at fs/io_uring.c:1164 io_wq_submit_work+0x272/0x300 fs/io_uring.c:6733 Modules linked in: CPU: 1 PID: 13026 Comm: syz-executor.5 Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:req_ref_get fs/io_uring.c:1164 [inline] RIP: 0010:io_wq_submit_work+0x272/0x300 fs/io_uring.c:6733 Code: e8 d3 33 91 ff 83 fb 7f 76 1b e8 89 2c 91 ff be 04 00 00 00 4c 89 ef e8 cc 7a d8 ff f0 ff 45 a4 e9 41 fe ff ff e8 6e 2c 91 ff <0f> 0b eb dc e8 65 2c 91 ff 4c 89 e7 e8 ed db fb ff 48 85 c0 49 89 RSP: 0018:ffffc9000b797898 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 000000000000007f RCX: 0000000000000000 RDX: ffff888076d2b900 RSI: ffffffff81e4e0d2 RDI: 0000000000000003 RBP: ffff88806ef571f8 R08: 000000000000007f R09: ffff88806ef5719f R10: ffffffff81e4e0ad R11: 0000000000000000 R12: ffff88806ef57140 R13: ffff88806ef5719c R14: ffff88806ef57198 R15: 0000000000100000 FS: 00007fa8c3085700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e427000 CR3: 000000001962b000 CR4: 0000000000350ee0 Call Trace: io_run_cancel fs/io-wq.c:809 [inline] io_acct_cancel_pending_work.isra.0+0x2a9/0x5e0 fs/io-wq.c:950 io_wqe_cancel_pending_work+0x6c/0x130 fs/io-wq.c:968 io_wq_destroy fs/io-wq.c:1185 [inline] io_wq_put_and_exit+0x7d1/0xc70 fs/io-wq.c:1198 io_uring_clean_tctx fs/io_uring.c:9609 [inline] io_uring_cancel_generic+0x5fe/0x740 fs/io_uring.c:9689 io_uring_files_cancel include/linux/io_uring.h:16 [inline] do_exit+0x265/0x2a30 kernel/exit.c:780 do_group_exit+0x125/0x310 kernel/exit.c:922 get_signal+0x47f/0x2160 kernel/signal.c:2868 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:865 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:209 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:302 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 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:00007fa8c3085218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000056bf88 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000056bf88 RBP: 000000000056bf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf8c R13: 00007ffcb24f8dcf R14: 00007fa8c3085300 R15: 0000000000022000