BUG: stack guard page was hit at ffffc90000c9ffc8 (stack is ffffc90000ca0000..ffffc90000ca7fff)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 28634 Comm: syz-executor.2 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:update_stack_state+0xa0/0x580 arch/x86/kernel/unwind_frame.c:198
Code: 4d 8d 7d 38 4c 89 f8 48 c1 e8 03 80 3c 10 00 74 12 4c 89 ff e8 d1 3e 73 00 48 ba 00 00 00 00 00 fc ff df 49 8b 07 48 83 c0 10 <48> 89 45 88 44 89 f3 83 e3 01 48 f7 db 4c 21 f3 48 83 e3 fe 4c 89
RSP: 0018:ffffc90000c9ffd0 EFLAGS: 00010202
RAX: 0000000000000010 RBX: ffffc90000ca00f0 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffc90000ca00f0 RDI: ffffc90000ca0100
RBP: ffffc90000ca0068 R08: dffffc0000000001 R09: ffffc90000ca0100
R10: fffff5200019402c R11: 1ffff92000194020 R12: ffffc90000ca0158
R13: ffffc90000ca0100 R14: ffffc90000ca00f0 R15: ffffc90000ca0138
FS:  00007f5eea91d700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000c9ffc8 CR3: 000000014979a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Modules linked in:
---[ end trace 09da0015189e18d0 ]---
RIP: 0010:update_stack_state+0xa0/0x580 arch/x86/kernel/unwind_frame.c:198
Code: 4d 8d 7d 38 4c 89 f8 48 c1 e8 03 80 3c 10 00 74 12 4c 89 ff e8 d1 3e 73 00 48 ba 00 00 00 00 00 fc ff df 49 8b 07 48 83 c0 10 <48> 89 45 88 44 89 f3 83 e3 01 48 f7 db 4c 21 f3 48 83 e3 fe 4c 89
RSP: 0018:ffffc90000c9ffd0 EFLAGS: 00010202
RAX: 0000000000000010 RBX: ffffc90000ca00f0 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffc90000ca00f0 RDI: ffffc90000ca0100
RBP: ffffc90000ca0068 R08: dffffc0000000001 R09: ffffc90000ca0100
R10: fffff5200019402c R11: 1ffff92000194020 R12: ffffc90000ca0158
R13: ffffc90000ca0100 R14: ffffc90000ca00f0 R15: ffffc90000ca0138
FS:  00007f5eea91d700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000c9ffc8 CR3: 000000014979a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	4d 8d 7d 38          	lea    0x38(%r13),%r15
   4:	4c 89 f8             	mov    %r15,%rax
   7:	48 c1 e8 03          	shr    $0x3,%rax
   b:	80 3c 10 00          	cmpb   $0x0,(%rax,%rdx,1)
   f:	74 12                	je     0x23
  11:	4c 89 ff             	mov    %r15,%rdi
  14:	e8 d1 3e 73 00       	callq  0x733eea
  19:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  20:	fc ff df
  23:	49 8b 07             	mov    (%r15),%rax
  26:	48 83 c0 10          	add    $0x10,%rax
* 2a:	48 89 45 88          	mov    %rax,-0x78(%rbp) <-- trapping instruction
  2e:	44 89 f3             	mov    %r14d,%ebx
  31:	83 e3 01             	and    $0x1,%ebx
  34:	48 f7 db             	neg    %rbx
  37:	4c 21 f3             	and    %r14,%rbx
  3a:	48 83 e3 fe          	and    $0xfffffffffffffffe,%rbx
  3e:	4c                   	rex.WR
  3f:	89                   	.byte 0x89