BUG: stack guard page was hit at ffffc900038affd8 (stack is ffffc900038b0000..ffffc900038b7fff)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8444 Comm: syz-executor.0 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:generic_file_buffered_read+0x95/0x2850 mm/filemap.c:2199
Code: 40 01 00 00 48 c1 e8 03 42 c7 04 28 f1 f1 f1 f1 42 c7 44 28 08 f2 f2 f2 f2 48 89 84 24 10 01 00 00 42 c7 44 28 10 f3 f3 f3 f3 <e8> 96 a0 dd ff 48 89 d9 48 89 d8 48 c1 e8 03 42 80 3c 28 00 48 89
RSP: 0018:ffffc900038affe0 EFLAGS: 00010a06
RAX: 1ffff92000716024 RBX: ffffc900038b0460 RCX: ffff88810d3d2780
RDX: 0000000000000000 RSI: ffffc900038b04b0 RDI: ffffc900038b0460
RBP: ffffc900038b0210 R08: ffffffff818f3dc5 R09: ffffed102168ca53
R10: ffffed102168ca53 R11: 1ffff1102168ca52 R12: 1ffff92000716050
R13: dffffc0000000000 R14: ffffc900038b04b0 R15: 0000000000000000
FS:  00007f578f4d1700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900038affd8 CR3: 000000011c6b9000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Modules linked in:
---[ end trace e12ee828c2fac2b6 ]---
RIP: 0010:generic_file_buffered_read+0x95/0x2850 mm/filemap.c:2199
Code: 40 01 00 00 48 c1 e8 03 42 c7 04 28 f1 f1 f1 f1 42 c7 44 28 08 f2 f2 f2 f2 48 89 84 24 10 01 00 00 42 c7 44 28 10 f3 f3 f3 f3 <e8> 96 a0 dd ff 48 89 d9 48 89 d8 48 c1 e8 03 42 80 3c 28 00 48 89
RSP: 0018:ffffc900038affe0 EFLAGS: 00010a06
RAX: 1ffff92000716024 RBX: ffffc900038b0460 RCX: ffff88810d3d2780
RDX: 0000000000000000 RSI: ffffc900038b04b0 RDI: ffffc900038b0460
RBP: ffffc900038b0210 R08: ffffffff818f3dc5 R09: ffffed102168ca53
R10: ffffed102168ca53 R11: 1ffff1102168ca52 R12: 1ffff92000716050
R13: dffffc0000000000 R14: ffffc900038b04b0 R15: 0000000000000000
FS:  00007f578f4d1700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900038affd8 CR3: 000000011c6b9000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	40 01 00             	rex add %eax,(%rax)
   3:	00 48 c1             	add    %cl,-0x3f(%rax)
   6:	e8 03 42 c7 04       	callq  0x4c7420e
   b:	28 f1                	sub    %dh,%cl
   d:	f1                   	icebp
   e:	f1                   	icebp
   f:	f1                   	icebp
  10:	42 c7 44 28 08 f2 f2 	movl   $0xf2f2f2f2,0x8(%rax,%r13,1)
  17:	f2 f2
  19:	48 89 84 24 10 01 00 	mov    %rax,0x110(%rsp)
  20:	00
  21:	42 c7 44 28 10 f3 f3 	movl   $0xf3f3f3f3,0x10(%rax,%r13,1)
  28:	f3 f3
* 2a:	e8 96 a0 dd ff       	callq  0xffdda0c5 <-- trapping instruction
  2f:	48 89 d9             	mov    %rbx,%rcx
  32:	48 89 d8             	mov    %rbx,%rax
  35:	48 c1 e8 03          	shr    $0x3,%rax
  39:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89