general protection fault, probably for non-canonical address 0xdffffc000000006a: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000350-0x0000000000000357]
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc6-next-20200724-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101
Code: 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 8d bd 50 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ea 00 00 00 4c 8b bd 50 03 00 00 e9 77 fe ff ff
RSP: 0018:ffffc90000007b18 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888214eca800 RCX: ffffffff871561e3
RDX: 000000000000006a RSI: ffffffff87156352 RDI: 0000000000000350
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880a7fe88e3
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888214eca800
R13: 0000000000000078 R14: ffff88808b98d5c0 R15: 0000000000000010
FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000190 CR3: 00000000981f2000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255
rose_rx_call_request+0x4bd/0x1978 net/rose/af_rose.c:998
rose_loopback_timer+0x15d/0x470 net/rose/rose_loopback.c:100
call_timer_fn+0x1ac/0x760 kernel/time/timer.c:1415
expire_timers kernel/time/timer.c:1460 [inline]
__run_timers.part.0+0x54c/0xa20 kernel/time/timer.c:1784
__run_timers kernel/time/timer.c:1756 [inline]
run_timer_softirq+0xae/0x1a0 kernel/time/timer.c:1797
__do_softirq+0x2df/0xa22 kernel/softirq.c:298
asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706
__run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
do_softirq_own_stack+0x9d/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+0x1f3/0x230 kernel/softirq.c:435
sysvec_apic_timer_interrupt+0x51/0xf0 arch/x86/kernel/apic/apic.c:1090
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:590
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: ff 4c 89 ef e8 83 ee c4 f9 e9 8e fe ff ff 48 89 df e8 76 ee c4 f9 eb 8a cc cc cc cc e9 07 00 00 00 0f 00 2d 44 94 59 00 fb f4 90 e9 07 00 00 00 0f 00 2d 34 94 59 00 f4 c3 cc cc 55 53 e8 19
RSP: 0018:ffffffff89a07c70 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffffffff1571651
RDX: ffffffff89a85d00 RSI: ffffffff87ef2658 RDI: ffffffff87ef262e
RBP: ffff8880a62bc864 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880a62bc864
R13: 1ffffffff1340f98 R14: ffff8880a62bc865 R15: 0000000000000001
arch_safe_halt arch/x86/include/asm/paravirt.h:150 [inline]
acpi_safe_halt+0x8d/0x110 drivers/acpi/processor_idle.c:111
acpi_idle_do_entry+0x15c/0x1b0 drivers/acpi/processor_idle.c:524
acpi_idle_enter+0x3f9/0xab0 drivers/acpi/processor_idle.c:650
cpuidle_enter_state+0xff/0x960 drivers/cpuidle/cpuidle.c:235
cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:346
call_cpuidle kernel/sched/idle.c:126 [inline]
cpuidle_idle_call kernel/sched/idle.c:214 [inline]
do_idle+0x431/0x6d0 kernel/sched/idle.c:276
cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:372
start_kernel+0x9cb/0xa06 init/main.c:1045
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
Modules linked in:
---[ end trace 94c7602692ecfc47 ]---
RIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101
Code: 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 8d bd 50 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ea 00 00 00 4c 8b bd 50 03 00 00 e9 77 fe ff ff
RSP: 0018:ffffc90000007b18 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888214eca800 RCX: ffffffff871561e3
RDX: 000000000000006a RSI: ffffffff87156352 RDI: 0000000000000350
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880a7fe88e3
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888214eca800
R13: 0000000000000078 R14: ffff88808b98d5c0 R15: 0000000000000010
FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000190 CR3: 00000000981f2000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400