general protection fault, probably for non-canonical address 0xdffffc000000006a: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000350-0x0000000000000357]
CPU: 1 PID: 6918 Comm: syz-fuzzer Not tainted 5.7.0-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: 0000:ffffc90000da8b00 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8880a939f000 RCX: ffffffff870334d3
RDX: 000000000000006a RSI: ffffffff87033642 RDI: 0000000000000350
RBP: 0000000000000000 R08: ffff88809f120380 R09: ffffed1012a8451d
R10: ffff8880954228e3 R11: ffffed1012a8451c R12: ffff8880a939f000
R13: 0000000000000078 R14: ffff88809099b6c0 R15: 0000000000000010
FS:  000000c0000d4e90(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200014c0 CR3: 0000000092d54000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rose_transmit_clear_request+0x1de/0x290 net/rose/rose_link.c:255
 rose_rx_call_request+0x488/0x1960 net/rose/af_rose.c:996
 rose_loopback_timer+0x15d/0x470 net/rose/rose_loopback.c:100
 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404
 expire_timers kernel/time/timer.c:1449 [inline]
 __run_timers kernel/time/timer.c:1773 [inline]
 __run_timers kernel/time/timer.c:1740 [inline]
 run_timer_softirq+0x623/0x1600 kernel/time/timer.c:1786
 __do_softirq+0x26c/0x9f7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x192/0x1d0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:546 [inline]
 smp_apic_timer_interrupt+0x19e/0x600 arch/x86/kernel/apic/apic.c:1107
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0033:0x45fdeb
Code: 1f 80 c5 f8 77 c3 88 07 88 44 1f ff c3 c3 66 89 07 66 89 44 1f fe c3 89 07 89 44 1f fc c3 48 89 07 c3 48 89 07 48 89 44 1f f8 <c3> f3 0f 7f 07 f3 0f 7f 44 1f f0 c3 f3 0f 7f 07 f3 0f 7f 47 10 f3
RSP: 002b:000000c0051faa38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000000010 RCX: 000000c0062b73f0
RDX: 00007f8ad61dc6d0 RSI: 0000000000000000 RDI: 000000c0062b73f0
RBP: 000000c0051faad0 R08: 00000000008dbfa0 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000140 R14: 000000000000013f R15: 0000000000000200
Modules linked in:
---[ end trace dbec157b4fdcadb7 ]---
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: 0000:ffffc90000da8b00 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8880a939f000 RCX: ffffffff870334d3
RDX: 000000000000006a RSI: ffffffff87033642 RDI: 0000000000000350
RBP: 0000000000000000 R08: ffff88809f120380 R09: ffffed1012a8451d
R10: ffff8880954228e3 R11: ffffed1012a8451c R12: ffff8880a939f000
R13: 0000000000000078 R14: ffff88809099b6c0 R15: 0000000000000010
FS:  000000c0000d4e90(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200014c0 CR3: 0000000092d54000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400