BUG: unable to handle page fault for address: ffffed105b9865ff
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23fff3067 P4D 23fff3067 PUD 23fff1067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 305 Comm: syz-executor359 Not tainted 5.4.219-syzkaller-00012-ga8aad8851131 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:fuse_dev_do_write+0x285b/0x4ed0 fs/fuse/dev.c:1939
Code: 7c 24 50 49 83 c4 48 4c 89 e0 48 c1 e8 03 8a 04 18 84 c0 0f 85 e3 21 00 00 45 8b 24 24 41 ff cc 4d 01 fc 4c 89 e0 48 c1 e8 03 <8a> 04 18 84 c0 0f 85 e5 21 00 00 41 c6 04 24 00 41 80 7c 1d 00 00
RSP: 0018:ffff8881dd3d77e0 EFLAGS: 00010a07
RAX: 1ffff1105b9865ff RBX: dffffc0000000000 RCX: ffff8881dd0a2f40
RDX: 0000000000000000 RSI: 00000000000007e0 RDI: ffff8881dcc9fd50
RBP: ffff8881dd3d7b30 R08: ffffffff81dc56ba R09: fffff94000fb083f
R10: fffff94000fb083f R11: 1ffffd4000fb083e R12: ffff8882dcc32fff
R13: 1ffff1103c486aba R14: ffff8881e24355d0 R15: ffff8881dcc33000
FS:  00007f2e481a9700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed105b9865ff CR3: 00000001dd343000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 fuse_dev_write+0x15a/0x1e0 fs/fuse/dev.c:1976
 call_write_iter include/linux/fs.h:1976 [inline]
 new_sync_write fs/read_write.c:483 [inline]
 __vfs_write+0x5e3/0x780 fs/read_write.c:496
 vfs_write+0x210/0x4f0 fs/read_write.c:558
 ksys_write+0x198/0x2c0 fs/read_write.c:611
 do_syscall_64+0xcb/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Modules linked in:
CR2: ffffed105b9865ff
---[ end trace 81fa6a46b75af09a ]---
RIP: 0010:fuse_dev_do_write+0x285b/0x4ed0 fs/fuse/dev.c:1939
Code: 7c 24 50 49 83 c4 48 4c 89 e0 48 c1 e8 03 8a 04 18 84 c0 0f 85 e3 21 00 00 45 8b 24 24 41 ff cc 4d 01 fc 4c 89 e0 48 c1 e8 03 <8a> 04 18 84 c0 0f 85 e5 21 00 00 41 c6 04 24 00 41 80 7c 1d 00 00
RSP: 0018:ffff8881dd3d77e0 EFLAGS: 00010a07
RAX: 1ffff1105b9865ff RBX: dffffc0000000000 RCX: ffff8881dd0a2f40
RDX: 0000000000000000 RSI: 00000000000007e0 RDI: ffff8881dcc9fd50
RBP: ffff8881dd3d7b30 R08: ffffffff81dc56ba R09: fffff94000fb083f
R10: fffff94000fb083f R11: 1ffffd4000fb083e R12: ffff8882dcc32fff
R13: 1ffff1103c486aba R14: ffff8881e24355d0 R15: ffff8881dcc33000
FS:  00007f2e481a9700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed105b9865ff CR3: 00000001dd343000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	7c 24                	jl     0x26
   2:	50                   	push   %rax
   3:	49 83 c4 48          	add    $0x48,%r12
   7:	4c 89 e0             	mov    %r12,%rax
   a:	48 c1 e8 03          	shr    $0x3,%rax
   e:	8a 04 18             	mov    (%rax,%rbx,1),%al
  11:	84 c0                	test   %al,%al
  13:	0f 85 e3 21 00 00    	jne    0x21fc
  19:	45 8b 24 24          	mov    (%r12),%r12d
  1d:	41 ff cc             	dec    %r12d
  20:	4d 01 fc             	add    %r15,%r12
  23:	4c 89 e0             	mov    %r12,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	8a 04 18             	mov    (%rax,%rbx,1),%al <-- trapping instruction
  2d:	84 c0                	test   %al,%al
  2f:	0f 85 e5 21 00 00    	jne    0x221a
  35:	41 c6 04 24 00       	movb   $0x0,(%r12)
  3a:	41 80 7c 1d 00 00    	cmpb   $0x0,0x0(%r13,%rbx,1)