node 1: slabs: 2206, objs: 26472, free: 5 ------------[ cut here ]------------ HSR: Could not send supervision frame WARNING: CPU: 1 PID: 0 at net/hsr/hsr_device.c:293 send_hsr_supervision_frame+0x590/0x9f0 net/hsr/hsr_device.c:293 Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.16.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:send_hsr_supervision_frame+0x590/0x9f0 net/hsr/hsr_device.c:293 Code: 7f f7 85 ed 74 2b e8 5f 9f 7f f7 e9 b1 fd ff ff e8 55 9f 7f f7 c6 05 78 74 e6 03 01 48 c7 c7 e0 f1 c7 8b 31 c0 e8 e0 78 49 f7 <0f> 0b e9 90 fd ff ff 48 83 c3 74 48 89 d8 48 c1 e8 03 42 8a 04 38 RSP: 0018:ffffc90000dc0a80 EFLAGS: 00010246 RAX: a5f0021073df5400 RBX: 1ffff920001b8117 RCX: ffff888012025700 RDX: 0000000080000101 RSI: 0000000080000101 RDI: 0000000000000000 RBP: 0000000000000003 R08: ffffffff8169fd72 R09: ffffed10173667b1 R10: ffffed10173667b1 R11: 0000000000000000 R12: ffffc90000dc0b40 R13: ffff888079e2ed60 R14: 1ffff1100f3c5dac R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f59fc692406 CR3: 000000000c88e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hsr_announce+0x15b/0x2d0 net/hsr/hsr_device.c:382 call_timer_fn+0xf6/0x210 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers+0x71a/0x910 kernel/time/timer.c:1734 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1747 __do_softirq+0x392/0x7a3 kernel/softirq.c:558 __irq_exit_rcu+0xec/0x170 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:132 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:110 [inline] RIP: 0010:acpi_idle_do_entry drivers/acpi/processor_idle.c:553 [inline] RIP: 0010:acpi_idle_enter+0x42d/0x790 drivers/acpi/processor_idle.c:688 Code: fd 48 83 e3 08 44 8b 7c 24 04 0f 85 22 01 00 00 4c 8d 74 24 40 e8 23 53 0c fd eb 0c e8 ac b6 05 fd 0f 00 2d c5 f9 63 06 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 23 00 74 08 4c 89 f7 e8 0d 8a 51 fd RSP: 0018:ffffc90000d57be0 EFLAGS: 00000282 RAX: a5f0021073df5400 RBX: 0000000000000000 RCX: ffffffff90bb2903 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000d57c90 R08: ffffffff818b1440 R09: ffffed1002404ae1 R10: ffffed1002404ae1 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8881443ad064 R14: ffffc90000d57c20 R15: 0000000000000001 cpuidle_enter_state+0x507/0xea0 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:158 [inline] cpuidle_idle_call kernel/sched/idle.c:239 [inline] do_idle+0x3e8/0x670 kernel/sched/idle.c:306 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:403 secondary_startup_64_no_verify+0xb1/0xbb ---------------- Code disassembly (best guess): 0: fd std 1: 48 83 e3 08 and $0x8,%rbx 5: 44 8b 7c 24 04 mov 0x4(%rsp),%r15d a: 0f 85 22 01 00 00 jne 0x132 10: 4c 8d 74 24 40 lea 0x40(%rsp),%r14 15: e8 23 53 0c fd callq 0xfd0c533d 1a: eb 0c jmp 0x28 1c: e8 ac b6 05 fd callq 0xfd05b6cd 21: 0f 00 2d c5 f9 63 06 verw 0x663f9c5(%rip) # 0x663f9ed 28: fb sti 29: f4 hlt * 2a: 4c 89 f3 mov %r14,%rbx <-- trapping instruction 2d: 48 c1 eb 03 shr $0x3,%rbx 31: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1) 36: 74 08 je 0x40 38: 4c 89 f7 mov %r14,%rdi 3b: e8 0d 8a 51 fd callq 0xfd518a4d