------------[ cut here ]------------ WARNING: CPU: 1 PID: 5701 at kernel/futex.c:2259 futex_requeue+0x1467/0x2d50 kernel/futex.c:2259 Modules linked in: CPU: 1 PID: 5701 Comm: syz-executor.0 Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:futex_requeue+0x1467/0x2d50 kernel/futex.c:2259 Code: 02 00 00 4c 8d 84 24 90 02 00 00 e8 63 6a 00 00 41 89 c7 31 ff 89 c6 e8 a7 4d 0c 00 45 85 ff 0f 84 d8 13 00 00 e8 89 49 0c 00 <0f> 0b eb 05 e8 80 49 0c 00 4c 89 fb 89 df 48 c7 c6 70 7c 73 8c e8 RSP: 0018:ffffc90001d5f640 EFLAGS: 00010293 RAX: ffffffff8174a337 RBX: 0000000000000df3 RCX: ffff888020e7b880 RDX: 0000000000000000 RSI: 00000000fffffffd RDI: 0000000000000000 RBP: ffffc90001d5f948 R08: ffffffff8174a329 R09: ffffed1005174a9e R10: ffffed1005174a9e R11: 0000000000000000 R12: 0000000020048000 R13: dffffc0000000000 R14: 0000000000000000 R15: 00000000fffffffd FS: 00007f4d7080c700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd72dab690 CR3: 000000001cf4d000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_futex+0x1b87/0x32b0 kernel/futex.c:3958 __do_sys_futex kernel/futex.c:4009 [inline] __se_sys_futex+0x11c/0x4d0 kernel/futex.c:3990 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 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:00007f4d7080c188 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9 RDX: 0000000000000001 RSI: 000000000000000c RDI: 000000002000cffc RBP: 00000000004bfcc4 R08: 0000000020048000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007fff6069004f R14: 00007f4d7080c300 R15: 0000000000022000