syzbot

  node 0: slabs: 1781, objs: 41002, free: 0
  node 1: slabs: 3347, objs: 78254, free: 6
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HSR: Could not send supervision frame
WARNING: CPU: 1 PID: 0 at net/hsr/hsr_device.c:294 send_hsr_supervision_frame+0x608/0x810 net/hsr/hsr_device.c:294
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.6.0-syzkaller-15029-gbe3ca57cfb77 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:send_hsr_supervision_frame+0x608/0x810 net/hsr/hsr_device.c:294
Code: 04 31 ff 89 de e8 f8 bd 29 f7 84 db 0f 85 bd fe ff ff e8 bb c2 29 f7 48 c7 c7 80 88 16 8c c6 05 cf bd a4 04 01 e8 18 5a ef f6 <0f> 0b e9 9e fe ff ff e8 9c c2 29 f7 41 be 3c 00 00 00 ba 01 00 00
RSP: 0000:ffffc90000578bd8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff814e3589
RDX: ffff888014ee0000 RSI: ffffffff814e3596 RDI: 0000000000000001
RBP: ffffc90000578c40 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000003a525348 R12: ffff8880222a9080
R13: 0000000000000000 R14: ffffffff8a5edbe0 R15: 0000000000000017
FS:  0000000000000000(0000) GS:ffff88802c700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004335e0 CR3: 000000000cd77000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 hsr_announce+0x114/0x370 net/hsr/hsr_device.c:382
 call_timer_fn+0x193/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x764/0xb10 kernel/time/timer.c:2022
 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035
 __do_softirq+0x21a/0x968 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:default_idle+0xf/0x20 arch/x86/kernel/process.c:743
Code: 89 07 49 c7 c0 08 00 00 00 4d 29 c8 4c 01 c7 4c 29 c2 e9 76 ff ff ff cc cc cc cc f3 0f 1e fa 66 90 0f 00 2d 83 5c 45 00 fb f4 <fa> c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 65
RSP: 0000:ffffc90000457e08 EFLAGS: 00000246
RAX: 0000000000b61311 RBX: 0000000000000001 RCX: ffffffff8a81382e
RDX: 0000000000000000 RSI: ffffffff8accb920 RDI: ffffffff8b2e7fc0
RBP: ffffed10029dc000 R08: 0000000000000001 R09: ffffed10058e6dbd
R10: ffff88802c736deb R11: 0000000000000000 R12: 0000000000000001
R13: ffff888014ee0000 R14: ffffffff8f197650 R15: 0000000000000000
 default_idle_call+0x67/0xa0 kernel/sched/idle.c:97
 cpuidle_idle_call kernel/sched/idle.c:170 [inline]
 do_idle+0x32e/0x3f0 kernel/sched/idle.c:282
 cpu_startup_entry+0x50/0x60 kernel/sched/idle.c:380
 start_secondary+0x20e/0x2a0 arch/x86/kernel/smpboot.c:336
 secondary_startup_64_no_verify+0x166/0x16b
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 07                	mov    %eax,(%rdi)
   2:	49 c7 c0 08 00 00 00 	mov    $0x8,%r8
   9:	4d 29 c8             	sub    %r9,%r8
   c:	4c 01 c7             	add    %r8,%rdi
   f:	4c 29 c2             	sub    %r8,%rdx
  12:	e9 76 ff ff ff       	jmp    0xffffff8d
  17:	cc                   	int3
  18:	cc                   	int3
  19:	cc                   	int3
  1a:	cc                   	int3
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 5c 45 00 	verw   0x455c83(%rip)        # 0x455cab
  28:	fb                   	sti
  29:	f4                   	hlt
* 2a:	fa                   	cli <-- trapping instruction
  2b:	c3                   	ret
  2c:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  33:	00 00 00 00
  37:	0f 1f 40 00          	nopl   0x0(%rax)
  3b:	f3 0f 1e fa          	endbr64
  3f:	65                   	gs