------------[ cut here ]------------ HSR: Could not send supervision frame WARNING: CPU: 1 PID: 10328 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: 10328 Comm: syz-executor.3 Not tainted 5.11.0-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 07 18 ca f8 84 db 0f 85 8b fd ff ff e8 7a 11 ca f8 48 c7 c7 00 8f 6c 8a c6 05 4c da 32 04 01 e8 6e b6 0a 00 <0f> 0b e9 6c fd ff ff e8 5b 11 ca f8 41 be 42 00 00 00 ba 01 00 00 RSP: 0000:ffffc900004e8c70 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8880136d8000 RSI: ffffffff815b2b45 RDI: fffff5200009d180 RBP: 00000000000088fb R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff815abd1e R11: 0000000000000000 R12: ffff888074062500 R13: 0000000000000000 R14: ffff88807410aca8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802cb00000(0063) knlGS:00000000f5591b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000000000054 CR3: 0000000075891000 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 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:226 [inline] __irq_exit_rcu kernel/softirq.c:420 [inline] irq_exit_rcu+0x134/0x200 kernel/softirq.c:432 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628 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 ea 5b 6a f8 48 89 ef e8 72 10 6b f8 f6 c7 02 75 1a 53 9d 01 00 00 00 e8 61 20 5f f8 65 8b 05 8a c5 13 77 85 c0 74 0a 5b RSP: 0000:ffffc900017afd18 EFLAGS: 00000246 RAX: 0000000005570cff RBX: 0000000000000246 RCX: 1ffffffff19de3c9 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888021238940 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817845a8 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880136d87c0 R14: ffff888021238940 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+0x2f5/0x3e0 arch/x86/mm/fault.c:829 do_user_addr_fault+0x849/0xc50 arch/x86/mm/fault.c:1356 handle_page_fault arch/x86/mm/fault.c:1450 [inline] exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1506 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:580 RIP: 0023:0x804d916 Code: e8 ef 5f 01 00 83 c4 10 85 c0 0f 84 7d 01 00 00 65 f0 83 2d e4 ff ff ff 01 8b 5c 24 08 e8 a2 05 01 00 8b 00 8b 54 24 0c 85 c0 <89> 42 54 8b 72 50 0f 85 16 01 00 00 83 fe ff 0f 85 0d 01 00 00 8b RSP: 002b:00000000f5591100 EFLAGS: 00010202 RAX: 000000000000000e RBX: 0000000000000000 RCX: 00000000f55910f0 RDX: 0000000000000000 RSI: 000000000818afc0 RDI: 000000000815f000 RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000