cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 1, min order: 0
  node 0: slabs: 119, objs: 2975, free: 0
  node 1: slabs: 91, objs: 2210, free: 81
------------[ cut here ]------------
HSR: Could not send supervision frame
WARNING: CPU: 1 PID: 17 at net/hsr/hsr_device.c:299 send_hsr_supervision_frame+0x889/0xb40 net/hsr/hsr_device.c:299
Modules linked in:
CPU: 1 PID: 17 Comm: ksoftirqd/1 Not tainted 5.11.0-rc1-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 07 ab ca f8 84 db 0f 85 8b fd ff ff e8 7a a4 ca f8 48 c7 c7 20 68 6c 8a c6 05 5b 2b 33 04 01 e8 9e ab 0a 00 <0f> 0b e9 6c fd ff ff e8 5b a4 ca f8 41 be 42 00 00 00 ba 01 00 00
RSP: 0018:ffffc9000049faf0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8880108d0000 RSI: ffffffff815b29b5 RDI: fffff52000093f50
RBP: 00000000000088fb R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff815abb8e R11: 0000000000000000 R12: ffff8880229f3c00
R13: 0000000000000000 R14: ffff888064a18ca8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88802cb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00db19040 CR3: 0000000020d12000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 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
 run_ksoftirqd kernel/softirq.c:650 [inline]
 run_ksoftirqd+0x2d/0x50 kernel/softirq.c:642
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296