general protection fault in do_fast_syscall

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	general protection fault in do_fast_syscall_32 (2) kernel				2	1443d	1439d	0/26	auto-closed as invalid on 2020/08/10 15:31
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: 1 PID: 9446 Comm: syz-executor.1 Not tainted 5.5.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:do_fast_syscall_32+0x779/0xe16 arch/x86/entry/common.c:422
Code: 3a 74 00 4c 39 eb 0f 85 78 fe ff ff e8 b0 39 74 00 00 00 00 00 00 00 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 24 06 00 00 49 8b 9c 24 90 00 00 00 31 ff 45 31
RSP: 0018:ffffc90002877f10 EFLAGS: 00010047
RAX: dffffc0000000000 RBX: 00000000f7f929a9 RCX: ffffffff8100bb62
RDX: 0000000000000000 RSI: ffffffff8100bb70 RDI: 0000000000000006
RBP: ffffc90002877f48 R08: ffff88808a49c600 R09: ffffed10114938c1
R10: ffffed10114938c0 R11: ffff88808a49c607 R12: ffffc90002877f58
R13: 00000000f7f929a9 R14: 0000000000000000 R15: ffffc90002877fd8
FS:  0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000008eda900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000812d0f0 CR3: 00000000785c7000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f929a9
Code: 00 00 00 89 d3 5b 5e 5f 5d c3 b8 80 96 98 00 eb c4 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:000000000848fd7c EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: 0000000000000000 RBX: 000000000848fda8 RCX: 0000000000000000
RDX: 0000000000000007 RSI: 000000000028532f RDI: 0000000000000000
RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 16a6e4d42e489563 ]---
RIP: 0010:do_fast_syscall_32+0x779/0xe16 arch/x86/entry/common.c:422
Code: 3a 74 00 4c 39 eb 0f 85 78 fe ff ff e8 b0 39 74 00 00 00 00 00 00 00 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 24 06 00 00 49 8b 9c 24 90 00 00 00 31 ff 45 31
RSP: 0018:ffffc90002877f10 EFLAGS: 00010047
RAX: dffffc0000000000 RBX: 00000000f7f929a9 RCX: ffffffff8100bb62
RDX: 0000000000000000 RSI: ffffffff8100bb70 RDI: 0000000000000006
RBP: ffffc90002877f48 R08: ffff88808a49c600 R09: ffffed10114938c1
R10: ffffed10114938c0 R11: ffff88808a49c607 R12: ffffc90002877f58
R13: 00000000f7f929a9 R14: 0000000000000000 R15: ffffc90002877fd8
FS:  0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000008eda900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000812d0f0 CR3: 00000000785c7000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400