list_add double add: new=ffff888194002278, prev=ffff8881c886c2e8, next=ffff888194002278. ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:31! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 13850 Comm: syz-executor.1 Not tainted 5.4.69-syzkaller-00002-g489646b879ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add_valid+0x8a/0xc0 lib/list_debug.c:29 Code: 74 11 4d 39 f7 74 0c b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 cf 10 99 84 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 f2 dc 30 ff <0f> 0b 48 c7 c7 1a 10 99 84 4c 89 e6 4c 89 f1 31 c0 e8 dc dc 30 ff RSP: 0018:ffff8881c890f850 EFLAGS: 00010046 RAX: 0000000000000058 RBX: ffff888194002280 RCX: 758123a3371ebd00 RDX: ffffc900068c1000 RSI: 0000000000006ca5 RDI: 0000000000006ca6 RBP: ffff8881c890f970 R08: ffffffff812ba15e R09: ffffed103b705e00 R10: ffffed103b705e00 R11: 0000000000000000 R12: ffff8881c886c2e8 R13: dffffc0000000000 R14: ffff888194002278 R15: ffff888194002278 FS: 00007f1b3d414700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000118c000 CR3: 000000019504d006 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add include/linux/list.h:60 [inline] list_add include/linux/list.h:79 [inline] io_queue_async_work fs/io_uring.c:520 [inline] io_poll_wake+0x6f6/0xb90 fs/io_uring.c:1864 __wake_up_common+0x27a/0x450 kernel/sched/wait.c:93 __wake_up_common_lock kernel/sched/wait.c:123 [inline] __wake_up+0x145/0x210 kernel/sched/wait.c:142 wakeup_pipe_writers fs/splice.c:457 [inline] splice_from_pipe_next+0x2a3/0x440 fs/splice.c:560 __splice_from_pipe+0xfa/0x870 fs/splice.c:622 splice_from_pipe fs/splice.c:659 [inline] generic_splice_sendpage+0x172/0x200 fs/splice.c:829 do_splice_from fs/splice.c:848 [inline] do_splice fs/splice.c:1156 [inline] __do_sys_splice fs/splice.c:1433 [inline] __se_sys_splice+0x860/0x1b90 fs/splice.c:1413 do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45de29 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1b3d413c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 00000000000350c0 RCX: 000000000045de29 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000118c020 R08: 000000000004ffe6 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfd4 R13: 00007ffd6815cd5f R14: 00007f1b3d4149c0 R15: 000000000118bfd4 Modules linked in: ---[ end trace 2f03128826d29dd6 ]--- RIP: 0010:__list_add_valid+0x8a/0xc0 lib/list_debug.c:29 Code: 74 11 4d 39 f7 74 0c b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 cf 10 99 84 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 f2 dc 30 ff <0f> 0b 48 c7 c7 1a 10 99 84 4c 89 e6 4c 89 f1 31 c0 e8 dc dc 30 ff RSP: 0018:ffff8881c890f850 EFLAGS: 00010046 RAX: 0000000000000058 RBX: ffff888194002280 RCX: 758123a3371ebd00 RDX: ffffc900068c1000 RSI: 0000000000006ca5 RDI: 0000000000006ca6 RBP: ffff8881c890f970 R08: ffffffff812ba15e R09: ffffed103b705e00 R10: ffffed103b705e00 R11: 0000000000000000 R12: ffff8881c886c2e8 R13: dffffc0000000000 R14: ffff888194002278 R15: ffff888194002278 FS: 00007f1b3d414700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000118c000 CR3: 000000019504d006 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400