general protection fault, probably for non-canonical address 0xdffffc0000000066: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000330-0x0000000000000337]
CPU: 0 PID: 6913 Comm: syz-executor.4 Not tainted 5.9.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ax25_dev_ax25dev include/net/ax25.h:337 [inline]
RIP: 0010:ax25_send_frame+0xe4/0x640 net/ax25/ax25_out.c:56
Code: 00 48 85 c0 49 89 c4 0f 85 fb 03 00 00 e8 b4 66 57 fa 49 8d bd 30 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b1 04 00 00 4d 8b ad 30 03 00 00 4d 85 ed 0f 84
RSP: 0000:ffffc90000007ac0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888214f9a408 RCX: 0000000000000002
RDX: 0000000000000066 RSI: ffffffff871d01ac RDI: 0000000000000330
RBP: ffffffff8d5403a0 R08: 0000000000000001 R09: ffffffff8c5fcb2f
R10: fffffbfff18bf965 R11: 1ffffffff1865137 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000104 R15: 0000000000000000
FS:  000000000185e940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd3e5ee800 CR3: 00000000621bc000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rose_send_frame+0xcc/0x2f0 net/rose/rose_link.c:106
 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: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+0xae/0x1a0 kernel/time/timer.c:1768
 __do_softirq+0x2de/0xa24 kernel/softirq.c:298
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706
 </IRQ>
 __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:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x4b/0x80 kernel/locking/spinlock.c:199
Code: c0 18 3c b6 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 31 48 83 3d 86 f6 be 01 00 74 25 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 cb 71 58 f9 65 8b 05 d4 b8 0a 78 85 c0 74 02 5d
RSP: 0000:ffffc900057c7b50 EFLAGS: 00000286
RAX: 1ffffffff136c783 RBX: ffff8880621e2340 RCX: 1ffffffff1564b39
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff87f7456f
RBP: ffff8880ae635e40 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880ae635e40
R13: ffff888091adc380 R14: 0000000000000000 R15: 0000000000000000
 finish_lock_switch kernel/sched/core.c:3517 [inline]
 finish_task_switch+0x147/0x750 kernel/sched/core.c:3617
 context_switch kernel/sched/core.c:3781 [inline]
 __schedule+0x8ed/0x21e0 kernel/sched/core.c:4527
 schedule+0xd0/0x2a0 kernel/sched/core.c:4602
 freezable_schedule include/linux/freezer.h:172 [inline]
 do_nanosleep+0x222/0x650 kernel/time/hrtimer.c:1883
 hrtimer_nanosleep+0x1f9/0x430 kernel/time/hrtimer.c:1936
 __do_sys_nanosleep kernel/time/hrtimer.c:1970 [inline]
 __se_sys_nanosleep kernel/time/hrtimer.c:1957 [inline]
 __x64_sys_nanosleep+0x1dc/0x260 kernel/time/hrtimer.c:1957
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45ba81
Code: 75 14 b8 23 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 84 cf fb ff c3 48 83 ec 08 e8 ea 46 00 00 48 89 04 24 b8 23 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 33 47 00 00 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffc00ecd550 EFLAGS: 00000293 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 000000000012a461 RCX: 000000000045ba81
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffc00ecd560
RBP: 0000000000000e9c R08: 0000000000000000 R09: 000000000185e940
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000007
R13: 00007ffc00ecd5b0 R14: 000000000012a3cf R15: 00007ffc00ecd5c0
Modules linked in:
---[ end trace 9862096d0b733019 ]---
RIP: 0010:ax25_dev_ax25dev include/net/ax25.h:337 [inline]
RIP: 0010:ax25_send_frame+0xe4/0x640 net/ax25/ax25_out.c:56
Code: 00 48 85 c0 49 89 c4 0f 85 fb 03 00 00 e8 b4 66 57 fa 49 8d bd 30 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b1 04 00 00 4d 8b ad 30 03 00 00 4d 85 ed 0f 84
RSP: 0000:ffffc90000007ac0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888214f9a408 RCX: 0000000000000002
RDX: 0000000000000066 RSI: ffffffff871d01ac RDI: 0000000000000330
RBP: ffffffff8d5403a0 R08: 0000000000000001 R09: ffffffff8c5fcb2f
R10: fffffbfff18bf965 R11: 1ffffffff1865137 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000104 R15: 0000000000000000
FS:  000000000185e940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd3e5ee800 CR3: 00000000621bc000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400