BUG: unable to handle page fault for address: ffffed104b32c5ff
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23fff2067 P4D 23fff2067 PUD 23fff0067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 17704 Comm: syz-executor.0 Not tainted 6.1.25-syzkaller-00259-ge6c15792a6de #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
RIP: 0010:fuse_dev_do_write+0x3828/0x6110 fs/fuse/dev.c:1938
Code: 49 8b 7d 00 48 89 f0 48 c1 e8 03 0f b6 04 10 84 c0 48 89 fb 0f 85 80 27 00 00 44 8b 2e 41 ff cd 49 01 fd 4c 89 e8 48 c1 e8 03 <0f> b6 04 10 84 c0 0f 85 94 27 00 00 41 c6 45 00 00 41 80 3c 17 00
RSP: 0018:ffffc9000213f840 EFLAGS: 00010a07
RAX: 1ffff1104b32c5ff RBX: ffff888159963000 RCX: 0000000000040000
RDX: dffffc0000000000 RSI: ffffc900021ff9e8 RDI: ffff888159963000
RBP: ffffc9000213fb70 R08: ffffffff820ed7e5 R09: fffff94000b3439f
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023444a21
R13: ffff888259962fff R14: ffff88810eaa2458 R15: 1ffff11021d5448b
FS:  00007fb908a49700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed104b32c5ff CR3: 000000010977d000 CR4: 00000000003506b0
DR0: 00000000ffff070c DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 fuse_dev_write+0x144/0x1d0 fs/fuse/dev.c:1988
 call_write_iter include/linux/fs.h:2212 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x8d1/0xe80 fs/read_write.c:584
 ksys_write+0x199/0x2c0 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb907c8c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb908a49168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fb907dabf80 RCX: 00007fb907c8c169
RDX: 0000000000000010 RSI: 00000000200042c0 RDI: 0000000000000003
RBP: 00007fb907ce7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffee9cbeeff R14: 00007fb908a49300 R15: 0000000000022000
 </TASK>
Modules linked in:
CR2: ffffed104b32c5ff
---[ end trace 0000000000000000 ]---
RIP: 0010:fuse_dev_do_write+0x3828/0x6110 fs/fuse/dev.c:1938
Code: 49 8b 7d 00 48 89 f0 48 c1 e8 03 0f b6 04 10 84 c0 48 89 fb 0f 85 80 27 00 00 44 8b 2e 41 ff cd 49 01 fd 4c 89 e8 48 c1 e8 03 <0f> b6 04 10 84 c0 0f 85 94 27 00 00 41 c6 45 00 00 41 80 3c 17 00
RSP: 0018:ffffc9000213f840 EFLAGS: 00010a07
RAX: 1ffff1104b32c5ff RBX: ffff888159963000 RCX: 0000000000040000
RDX: dffffc0000000000 RSI: ffffc900021ff9e8 RDI: ffff888159963000
RBP: ffffc9000213fb70 R08: ffffffff820ed7e5 R09: fffff94000b3439f
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023444a21
R13: ffff888259962fff R14: ffff88810eaa2458 R15: 1ffff11021d5448b
FS:  00007fb908a49700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed104b32c5ff CR3: 000000010977d000 CR4: 00000000003506b0
DR0: 00000000ffff070c DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	49 8b 7d 00          	mov    0x0(%r13),%rdi
   4:	48 89 f0             	mov    %rsi,%rax
   7:	48 c1 e8 03          	shr    $0x3,%rax
   b:	0f b6 04 10          	movzbl (%rax,%rdx,1),%eax
   f:	84 c0                	test   %al,%al
  11:	48 89 fb             	mov    %rdi,%rbx
  14:	0f 85 80 27 00 00    	jne    0x279a
  1a:	44 8b 2e             	mov    (%rsi),%r13d
  1d:	41 ff cd             	dec    %r13d
  20:	49 01 fd             	add    %rdi,%r13
  23:	4c 89 e8             	mov    %r13,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	0f b6 04 10          	movzbl (%rax,%rdx,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	0f 85 94 27 00 00    	jne    0x27ca
  36:	41 c6 45 00 00       	movb   $0x0,0x0(%r13)
  3b:	41 80 3c 17 00       	cmpb   $0x0,(%r15,%rdx,1)