WARNING: CPU: 1 PID: 21 at net/hsr/hsr_device.c:293 send_hsr_supervision_frame+0x66d/0x8d0 net/hsr/hsr_device.c:293 Modules linked in: CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 5.16.0-rc2-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:send_hsr_supervision_frame+0x66d/0x8d0 net/hsr/hsr_device.c:293 Code: 1d 0c 19 89 04 31 ff 89 de e8 cf 12 84 f8 84 db 75 b6 e8 e6 0e 84 f8 48 c7 c7 20 d2 d7 8a c6 05 ec 18 89 04 01 e8 0d d6 0c 00 <0f> 0b eb 9a e8 ca 0e 84 f8 41 be 3c 00 00 00 ba 01 00 00 00 4c 89 RSP: 0000:ffffc900004dfb48 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888011501d00 RSI: ffffffff815f0c28 RDI: fffff5200009bf5b RBP: ffff88804cc0ec80 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff815ea9ce R11: 0000000000000000 R12: ffff8880730e3e00 R13: 0000000000000000 R14: ffff8880730e3e18 R15: 0000000000000017 FS: 0000000000000000(0000) GS:ffff88802cb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000046db5d CR3: 000000000b88e000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hsr_announce+0x109/0x330 net/hsr/hsr_device.c:382 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 run_ksoftirqd kernel/softirq.c:920 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:912 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295