------------[ cut here ]------------ WARNING: CPU: 0 PID: 5421 at kernel/sched/fair.c:5337 place_entity+0x463/0x520 kernel/sched/fair.c:5337 Modules linked in: CPU: 0 UID: 0 PID: 5421 Comm: syz.3.26 Not tainted 6.11.0-rc4-next-20240821-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:place_entity+0x463/0x520 kernel/sched/fair.c:5337 Code: 27 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 48 8b 3c 24 4c 89 fe e8 77 14 00 00 48 89 04 24 e9 e0 fd ff ff 90 <0f> 0b 90 41 bd 01 00 00 00 e9 22 ff ff ff 89 d9 80 e1 07 38 c1 0f RSP: 0018:ffffc90000007a10 EFLAGS: 00010046 RAX: 000000002ad53400 RBX: 00000000000ab54d RCX: 0000000000100000 RDX: 0000000000000400 RSI: ffff888066ed8080 RDI: ffff888066ed8100 RBP: dffffc0000000000 R08: ffff888018b0c487 R09: 1ffff11003161890 R10: dffffc0000000000 R11: ffffed1003161891 R12: 0000000010a8c140 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888066ed8080 FS: 00007fd3f12016c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3261fffc CR3: 0000000020026000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: enqueue_entity+0x271/0x1920 kernel/sched/fair.c:5409 enqueue_task_fair+0x206/0xe30 kernel/sched/fair.c:6985 enqueue_task+0x1a5/0x300 kernel/sched/core.c:2014 activate_task kernel/sched/core.c:2056 [inline] ttwu_do_activate+0x1d1/0x7e0 kernel/sched/core.c:3665 ttwu_queue kernel/sched/core.c:3940 [inline] try_to_wake_up+0x8bc/0x1480 kernel/sched/core.c:4266 hrtimer_wakeup+0x62/0x80 kernel/time/hrtimer.c:1927 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1755 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1026 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1043 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1037 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:console_flush_all+0xaad/0xfd0 kernel/printk/printk.c:3055 Code: ff ff e8 26 b0 1f 00 90 0f 0b 90 e9 d8 f8 ff ff e8 18 b0 1f 00 e8 43 6f 49 0a 4d 85 f6 74 b6 e8 09 b0 1f 00 fb 48 8b 44 24 70 <42> 0f b6 04 38 84 c0 48 8b 7c 24 30 0f 85 22 02 00 00 0f b6 1f 31 RSP: 0018:ffffc900048ff240 EFLAGS: 00000283 RAX: 1ffff9200091fe94 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90009e19000 RSI: 0000000000003c61 RDI: 0000000000003c62 RBP: ffffc900048ff3f0 R08: ffffffff81741014 R09: 1ffffffff26f5700 R10: dffffc0000000000 R11: fffffbfff26f5701 R12: ffffffff8f171458 R13: ffffffff8f171400 R14: 0000000000000200 R15: dffffc0000000000 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3118 vprintk_emit+0x5dc/0x7c0 kernel/printk/printk.c:2348 _printk+0xd5/0x120 kernel/printk/printk.c:2373 bt_err+0x127/0x180 net/bluetooth/lib.c:296 start_service_discovery+0x75e/0xb90 net/bluetooth/mgmt.c:5984 hci_mgmt_cmd+0xc47/0x11d0 net/bluetooth/hci_sock.c:1712 hci_sock_sendmsg+0x7b8/0x11c0 net/bluetooth/hci_sock.c:1832 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 sock_write_iter+0x2dd/0x400 net/socket.c:1160 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590 ksys_write+0x183/0x2b0 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd3f0379e79 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd3f1201038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fd3f0515f80 RCX: 00007fd3f0379e79 RDX: 000000000000000d RSI: 0000000020000200 RDI: 0000000000000004 RBP: 00007fd3f03e7916 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd3f0515f80 R15: 00007fffdf1bec58 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: e8 26 b0 1f 00 call 0x1fb02b 5: 90 nop 6: 0f 0b ud2 8: 90 nop 9: e9 d8 f8 ff ff jmp 0xfffff8e6 e: e8 18 b0 1f 00 call 0x1fb02b 13: e8 43 6f 49 0a call 0xa496f5b 18: 4d 85 f6 test %r14,%r14 1b: 74 b6 je 0xffffffd3 1d: e8 09 b0 1f 00 call 0x1fb02b 22: fb sti 23: 48 8b 44 24 70 mov 0x70(%rsp),%rax * 28: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2d: 84 c0 test %al,%al 2f: 48 8b 7c 24 30 mov 0x30(%rsp),%rdi 34: 0f 85 22 02 00 00 jne 0x25c 3a: 0f b6 1f movzbl (%rdi),%ebx 3d: 31 .byte 0x31