general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 9538 Comm: syz-executor.4 Not tainted 5.6.0-rc3-next-20200228-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:747 [inline]
RIP: 0010:syscall_return_slowpath arch/x86/entry/common.c:266 [inline]
RIP: 0010:do_syscall_64+0x142/0x790 arch/x86/entry/common.c:305
Code: 50 e8 42 f4 71 00 48 b8 00 00 00 00 00 fc ff df 65 48 8b 1c 25 c0 1e 02 00 48 89 da 48 c1 ea 03 80 3c 02 00 0f 85 df 05 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90002617f28 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88809c302000 RCX: 1ffff920004c2ff5
RDX: 1ffff11013860400 RSI: ffffffff8100a13e RDI: ffffc90002617fa8
RBP: ffffc90002617f58 R08: ffff88809c302000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff8993c848 R14: 0000000000000000 R15: 0000000000000000
FS:  00000000027f3940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc09b1aff8 CR3: 00000000a784f000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a950
Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d e1 df 82 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 d1 fb ff c3 48 83 ec 08 e8 ea 46 00 00
RSP: 002b:00007ffc03b13e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000023
RAX: 0000000000000000 RBX: 00000000000c0a65 RCX: 000000000045a950
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffc03b13e50
RBP: 00000000000009b7 R08: 0000000000000001 R09: 00000000027f3940
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007ffc03b13ea0 R14: 00000000000c0983 R15: 00007ffc03b13eb0
Modules linked in:
---[ end trace 4c3e80ec24554d92 ]---
RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:747 [inline]
RIP: 0010:syscall_return_slowpath arch/x86/entry/common.c:266 [inline]
RIP: 0010:do_syscall_64+0x142/0x790 arch/x86/entry/common.c:305
Code: 50 e8 42 f4 71 00 48 b8 00 00 00 00 00 fc ff df 65 48 8b 1c 25 c0 1e 02 00 48 89 da 48 c1 ea 03 80 3c 02 00 0f 85 df 05 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90002617f28 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88809c302000 RCX: 1ffff920004c2ff5
RDX: 1ffff11013860400 RSI: ffffffff8100a13e RDI: ffffc90002617fa8
RBP: ffffc90002617f58 R08: ffff88809c302000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff8993c848 R14: 0000000000000000 R15: 0000000000000000
FS:  00000000027f3940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc09b1aff8 CR3: 00000000a784f000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400