------------[ cut here ]------------ HSR: Could not send supervision frame WARNING: CPU: 0 PID: 9020 at net/hsr/hsr_device.c:299 send_hsr_supervision_frame+0x889/0xb40 net/hsr/hsr_device.c:299 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 9020 Comm: syz-executor.3 Not tainted 5.9.0-rc8-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x198/0x1fd lib/dump_stack.c:118 panic+0x382/0x7fb kernel/panic.c:231 __warn.cold+0x20/0x4b kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:send_hsr_supervision_frame+0x889/0xb40 net/hsr/hsr_device.c:299 Code: 03 31 ff 89 de e8 c7 71 58 f9 84 db 0f 85 8b fd ff ff e8 9a 75 58 f9 48 c7 c7 00 29 67 89 c6 05 52 e6 36 03 01 e8 89 b2 28 f9 <0f> 0b e9 6c fd ff ff e8 7b 75 58 f9 41 be 42 00 00 00 ba 01 00 00 RSP: 0000:ffffc90000007c48 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888051fcd7c0 RSI: ffffffff815f5a55 RDI: fffff52000000f7b RBP: 00000000000088fb R08: 0000000000000001 R09: ffffffff8d0c3abf R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880557d3580 R13: 0000000000000000 R14: ffff888055042ce8 R15: ffff88802ce255c0 hsr_announce+0x122/0x320 net/hsr/hsr_device.c:404 call_timer_fn+0x1ac/0x760 kernel/time/timer.c:1413 expire_timers kernel/time/timer.c:1458 [inline] __run_timers.part.0+0x67c/0xaa0 kernel/time/timer.c:1755 __run_timers kernel/time/timer.c:1736 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1768 __do_softirq+0x1f8/0xb23 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+0x9b/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+0x235/0x280 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x51/0xf0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x4d/0x90 kernel/locking/spinlock.c:191 Code: 48 c7 c0 e8 6b fc 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3c 48 83 3d 22 21 d3 01 00 74 29 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 d4 aa 27 f9 65 8b 05 9d b3 d8 77 RSP: 0000:ffffc90008b37d18 EFLAGS: 00000286 RAX: 1ffffffff13f8d7d RBX: 0000000000000286 RCX: 1ffffffff16b2b61 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286 RBP: ffff888028503280 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff888051fcdf00 R14: ffff888028503280 R15: 000000000000000b spin_unlock_irqrestore include/linux/spinlock.h:409 [inline] force_sig_info_to_task+0x2ce/0x3a0 kernel/signal.c:1334 force_sig_fault_to_task kernel/signal.c:1672 [inline] force_sig_fault+0xb0/0xf0 kernel/signal.c:1679 __bad_area_nosemaphore+0x32a/0x4f0 arch/x86/mm/fault.c:825 do_user_addr_fault+0x852/0xbf0 arch/x86/mm/fault.c:1335 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0xa8/0x190 arch/x86/mm/fault.c:1482 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0023:0x804d5ec Code: ff 50 e8 d7 5d 01 00 83 c4 10 85 c0 0f 84 75 01 00 00 8b 5c 24 0c e8 93 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:00000000f54fd100 EFLAGS: 00010296 RAX: 000000000000000e RBX: 0000000000000000 RCX: 00000000f54fd0f0 RDX: 0000000000000000 RSI: 00000000080dcf38 RDI: 000000000815e000 RBP: 000000000818af6c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..