kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 30135 Comm: kworker/0:5 Not tainted 5.3.0-rc6+ #94
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: rcu_gp process_srcu
RIP: 0010:rose_send_frame net/rose/rose_link.c:101 [inline]
RIP: 0010:rose_transmit_clear_request+0x1ee/0x460 net/rose/rose_link.c:255
Code: fc ff df 80 3c 08 00 74 12 4c 89 f7 e8 9b fa fd fa 48 b9 00 00 00 00 00 fc ff df bb 50 03 00 00 49 03 1e 48 89 d8 48 c1 e8 03 <80> 3c 08 00 74 12 48 89 df e8 74 fa fd fa 48 b9 00 00 00 00 00 fc
RSP: 0018:ffff8880aea09b68 EFLAGS: 00010206
RAX: 000000000000006a RBX: 0000000000000350 RCX: dffffc0000000000
RDX: 0000000000000101 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880aea09bb0 R08: ffffffff86ae8825 R09: ffffed1015238a25
R10: ffffed1015238a25 R11: 0000000000000000 R12: ffff88809ba77a00
R13: ffff8880a91c509c R14: ffff88809ba77a20 R15: ffff8880a91c509e
FS:  0000000000000000(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c721000 CR3: 000000005169c000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rose_rx_call_request+0xa9a/0x1c30 net/rose/af_rose.c:998
 rose_loopback_timer+0x2f8/0x480 net/rose/rose_loopback.c:100
 call_timer_fn+0x95/0x170 kernel/time/timer.c:1322
 expire_timers kernel/time/timer.c:1366 [inline]
 __run_timers+0x79e/0x970 kernel/time/timer.c:1685
 run_timer_softirq+0x4a/0x90 kernel/time/timer.c:1698
 __do_softirq+0x333/0x7c4 arch/x86/include/asm/paravirt.h:778
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x227/0x230 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:537 [inline]
 smp_apic_timer_interrupt+0x113/0x280 arch/x86/kernel/apic/apic.c:1133
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
 </IRQ>
RIP: 0010:preempt_count_sub+0x14/0x190 kernel/sched/core.c:3639
Code: be 88 e8 ef 01 5c 00 83 3d 9c a3 6d 07 00 0f 85 ef fe ff ff eb 85 55 48 89 e5 41 56 53 89 fb 48 c7 c0 40 5d 9e 89 48 c1 e8 03 <49> be 00 00 00 00 00 fc ff df 42 8a 04 30 84 c0 0f 85 c0 00 00 00
RSP: 0018:ffff88803efc7b28 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff133cba8 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000782 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff88803efc7b38 R08: ffffffff835399ca R09: fffff52000326d74
R10: fffff52000326d74 R11: 0000000000000000 R12: 0000078235e80917
R13: 0000000000000000 R14: 0000000000002ced R15: 0000000000000000
 delay_tsc+0xc6/0xf0 arch/x86/lib/delay.c:62
 __delay arch/x86/lib/delay.c:161 [inline]
 __const_udelay+0x5e/0x70 arch/x86/lib/delay.c:175
 try_check_zero+0x6e/0x380 kernel/rcu/srcutree.c:705
 srcu_advance_state kernel/rcu/srcutree.c:1142 [inline]
 process_srcu+0x1b7/0xd20 kernel/rcu/srcutree.c:1237
 process_one_work+0x7ef/0x10e0 kernel/workqueue.c:2269
 worker_thread+0xc01/0x1630 kernel/workqueue.c:2415
 kthread+0x332/0x350 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace fff3b108fdd7f1c3 ]---
RIP: 0010:rose_send_frame net/rose/rose_link.c:101 [inline]
RIP: 0010:rose_transmit_clear_request+0x1ee/0x460 net/rose/rose_link.c:255
Code: fc ff df 80 3c 08 00 74 12 4c 89 f7 e8 9b fa fd fa 48 b9 00 00 00 00 00 fc ff df bb 50 03 00 00 49 03 1e 48 89 d8 48 c1 e8 03 <80> 3c 08 00 74 12 48 89 df e8 74 fa fd fa 48 b9 00 00 00 00 00 fc
RSP: 0018:ffff8880aea09b68 EFLAGS: 00010206
RAX: 000000000000006a RBX: 0000000000000350 RCX: dffffc0000000000
RDX: 0000000000000101 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880aea09bb0 R08: ffffffff86ae8825 R09: ffffed1015238a25
R10: ffffed1015238a25 R11: 0000000000000000 R12: ffff88809ba77a00
R13: ffff8880a91c509c R14: ffff88809ba77a20 R15: ffff8880a91c509e
FS:  0000000000000000(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c721000 CR3: 000000005169c000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400