HSR: Could not send supervision frame
WARNING: CPU: 2 PID: 9482 at net/hsr/hsr_device.c:299 send_hsr_supervision_frame+0x889/0xb40 net/hsr/hsr_device.c:299
Modules linked in:

CPU: 2 PID: 9482 Comm: syz-executor.0 Not tainted 5.11.0-rc2-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
RIP: 0010:send_hsr_supervision_frame+0x889/0xb40 net/hsr/hsr_device.c:299
Code: 04 31 ff 89 de e8 57 2f ca f8 84 db 0f 85 8b fd ff ff e8 ca 28 ca f8 48 c7 c7 80 8d 6c 8a c6 05 fc f0 32 04 01 e8 be ad 0a 00 <0f> 0b e9 6c fd ff ff e8 ab 28 ca f8 41 be 42 00 00 00 ba 01 00 00
RSP: 0000:ffffc90000540c70 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8880133c8000 RSI: ffffffff815b2b45 RDI: fffff520000a8180
RBP: 00000000000088fb R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff815abd1e R11: 0000000000000000 R12: ffff88802a198080
R13: 0000000000000000 R14: ffff88802a2b6ca8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88802cc00000(0063) knlGS:00000000f5581b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000000000054 CR3: 0000000079b36000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 hsr_announce+0x122/0x320 net/hsr/hsr_device.c:404
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1417
 expire_timers kernel/time/timer.c:1462 [inline]
 __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1731
 __run_timers kernel/time/timer.c:1712 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1744
 __do_softirq+0x2a5/0x9f7 kernel/softirq.c:343
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:226 [inline]
 __irq_exit_rcu kernel/softirq.c:420 [inline]
 irq_exit_rcu+0x134/0x200 kernel/softirq.c:432
 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:199
Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 ee 7c 6a f8 48 89 ef e8 76 31 6b f8 e8 51 3c 8a f8 fb bf 01 00 00 00 <e8> 66 41 5f f8 65 8b 05 8f e6 13 77 85 c0 74 02 5d c3 e8 cb 3b 12
RSP: 0000:ffffc90000e77cc0 EFLAGS: 00000206
RAX: 0000000002313dc5 RBX: 000000000804b2a0 RCX: 1ffffffff19de3b9
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff888022175c80 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817845a8 R11: 0000000000000000 R12: ffff888022175e58
R13: ffff888022175dc0 R14: 000000000000000b R15: ffff888022175e58
 spin_unlock_irq include/linux/spinlock.h:404 [inline]
 get_signal+0x1635/0x2010 kernel/signal.c:2773
 arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:811
 handle_signal_work kernel/entry/common.c:147 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x148/0x250 kernel/entry/common.c:201
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:315
 exc_page_fault+0xc6/0x180 arch/x86/mm/fault.c:1509
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:580
RIP: 0023:0x804d916
Code: e8 ef 5f 01 00 83 c4 10 85 c0 0f 84 7d 01 00 00 65 f0 83 2d e4 ff ff ff 01 8b 5c 24 08 e8 a2 05 01 00 8b 00 8b 54 24 0c 85 c0 <89> 42 54 8b 72 50 0f 85 16 01 00 00 83 fe ff 0f 85 0d 01 00 00 8b
RSP: 002b:00000000f5581100 EFLAGS: 00010202
RAX: 000000000000000e RBX: 0000000000000000 RCX: 00000000f55810f0
RDX: 0000000000000000 RSI: 000000000818afc0 RDI: 000000000815f000
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000