------------[ cut here ]------------ HSR: Could not send supervision frame WARNING: CPU: 1 PID: 9217 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: 9217 Comm: syz-executor.3 Not tainted 5.10.0-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 f7 a3 ce f8 84 db 0f 85 8b fd ff ff e8 da ab ce f8 48 c7 c7 20 a3 6b 8a c6 05 e5 38 37 04 01 e8 0e 05 0a 00 <0f> 0b e9 6c fd ff ff e8 bb ab ce f8 41 be 42 00 00 00 ba 01 00 00 RSP: 0000:ffffc900004c8c70 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8880153f2180 RSI: ffffffff8158d145 RDI: fffff52000099180 RBP: 00000000000088fb R08: 0000000000000001 R09: ffffffff8ecc0747 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888067ee8a00 R13: 0000000000000000 R14: ffff88806824cce8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802cd00000(0063) knlGS:00000000f55d9b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000000000050 CR3: 0000000069d52000 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:1410 expire_timers kernel/time/timer.c:1455 [inline] __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1747 __run_timers kernel/time/timer.c:1728 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1760 __do_softirq+0x2a0/0x9f6 kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __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:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x132/0x200 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x25/0x50 kernel/locking/spinlock.c:191 Code: f8 5d c3 66 90 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 1a 49 6f f8 48 89 ef e8 82 09 70 f8 f6 c7 02 75 1a 53 9d 01 00 00 00 e8 d1 5b 64 f8 65 8b 05 ba 16 1b 77 85 c0 74 0a 5b RSP: 0000:ffffc900068e7d18 EFLAGS: 00000246 RAX: 0000000003c4ba89 RBX: 0000000000000246 RCX: 1ffffffff19d8cf1 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88801371ae40 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880153f28e8 R14: ffff88801371ae40 R15: 000000000000000b spin_unlock_irqrestore include/linux/spinlock.h:409 [inline] force_sig_info_to_task+0x2ce/0x3a0 kernel/signal.c:1335 force_sig_fault_to_task kernel/signal.c:1673 [inline] force_sig_fault+0xb0/0xf0 kernel/signal.c:1680 __bad_area_nosemaphore+0x2f3/0x400 arch/x86/mm/fault.c:825 do_user_addr_fault+0x7d7/0xb40 arch/x86/mm/fault.c:1335 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1485 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583 RIP: 0023:0x804d63c Code: ff 50 e8 c7 5d 01 00 83 c4 10 85 c0 0f 84 75 01 00 00 8b 5c 24 0c e8 83 03 01 00 65 f0 83 2d e4 ff ff ff 01 8b 54 24 10 8b 00 <83> 7a 50 ff 89 42 54 75 0b 85 c0 75 07 c7 42 54 16 00 00 00 6b 44 RSP: 002b:00000000f55d9100 EFLAGS: 00010282 RAX: 000000000000000e RBX: 0000000000000000 RCX: 00000000f55d90f0 RDX: 0000000000000000 RSI: 000000000818af60 RDI: 000000000815e000 RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000