------------[ cut here ]------------
HSR: Could not send supervision frame
WARNING: CPU: 2 PID: 112 at net/hsr/hsr_device.c:294 send_hsr_supervision_frame+0x608/0x810 net/hsr/hsr_device.c:294
Modules linked in:
CPU: 2 PID: 112 Comm: kswapd0 Not tainted 6.5.0-rc7-syzkaller-00182-g3b35375f19fe #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 88 c1 74 f7 84 db 0f 85 bd fe ff ff e8 4b c6 74 f7 48 c7 c7 c0 90 ad 8b c6 05 51 9a 84 04 01 e8 38 88 3b f7 <0f> 0b e9 9e fe ff ff e8 2c c6 74 f7 41 be 3c 00 00 00 ba 01 00 00
RSP: 0000:ffffc90000530bd8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000100
RDX: ffff888016ac4800 RSI: ffffffff814ccc86 RDI: 0000000000000001
RBP: ffffc90000530c40 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000003a525348 R12: ffff88801024cd80
R13: 0000000000000000 R14: ffffffff8a1144b0 R15: 0000000000000017
FS:  0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ffabef1bd6 CR3: 0000000025c06000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 hsr_announce+0x116/0x380 net/hsr/hsr_device.c:382
 call_timer_fn+0x1a0/0x580 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+0x218/0x965 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:1109
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:get_random_u8+0x0/0x7e0 drivers/char/random.c:530
Code: c9 e8 84 92 ec fc e8 9f f7 ff ff 44 89 f6 89 c3 49 0f af dd 89 df e8 5f 8d ec fc 44 39 f3 73 aa eb df 0f 1f 84 00 00 00 00 00 <f3> 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 41 57 41 56 41 55 41 54
RSP: 0000:ffffc90000e9f9b8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888016ac4800 RSI: ffffffff81bb8b92 RDI: 0000000000000005
RBP: 0000000000001f8e R08: 0000000000000005 R09: 000000000000003f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc90000e9fc88
 get_random_u32_below include/linux/random.h:78 [inline]
 shrink_many mm/vmscan.c:5430 [inline]
 lru_gen_shrink_node mm/vmscan.c:5574 [inline]
 shrink_node+0x1e71/0x3740 mm/vmscan.c:6514
 kswapd_shrink_node mm/vmscan.c:7319 [inline]
 balance_pgdat+0xa37/0x1b90 mm/vmscan.c:7509
 kswapd+0x5be/0xbf0 mm/vmscan.c:7769
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
----------------
Code disassembly (best guess):
   0:	c9                   	leave
   1:	e8 84 92 ec fc       	call   0xfcec928a
   6:	e8 9f f7 ff ff       	call   0xfffff7aa
   b:	44 89 f6             	mov    %r14d,%esi
   e:	89 c3                	mov    %eax,%ebx
  10:	49 0f af dd          	imul   %r13,%rbx
  14:	89 df                	mov    %ebx,%edi
  16:	e8 5f 8d ec fc       	call   0xfcec8d7a
  1b:	44 39 f3             	cmp    %r14d,%ebx
  1e:	73 aa                	jae    0xffffffca
  20:	eb df                	jmp    0x1
  22:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
  29:	00
* 2a:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2e:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  35:	fc ff df
  38:	41 57                	push   %r15
  3a:	41 56                	push   %r14
  3c:	41 55                	push   %r13
  3e:	41 54                	push   %r12