BUG: unable to handle page fault for address: ffffed105c03c3ff
#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: 0 PID: 382 Comm: syz-executor.0 Not tainted 5.4.292-syzkaller-05062-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:fuse_dev_do_write+0x1bd6/0x4600 fs/fuse/dev.c:1941
Code: c8 b8 ff 48 8b 1b 4c 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 d8 25 00 00 45 8b 36 41 ff ce 49 01 de 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 d9 25 00 00 41 c6 06 00 48 8b 44 24 58
RSP: 0018:ffff8881eb89f860 EFLAGS: 00010a07
RAX: 1ffff1105c03c3ff RBX: ffff8881e01e2000 RCX: ffff8881ecc98fc0
RDX: 0000000000000000 RSI: 00000000000007e0 RDI: 00000000000007e0
RBP: ffff8881eb89fb88 R08: dffffc0000000000 R09: fffff94000ed333f
R10: fffff94000ed333f R11: 1ffffd4000ed333e R12: 0000000000000010
R13: dffffc0000000000 R14: ffff8882e01e1fff R15: ffff8881f0fd1440
FS:  00007fb159b1a6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed105c03c3ff CR3: 00000001f42c5000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 fuse_dev_write+0xe8/0x150 fs/fuse/dev.c:1978
 call_write_iter include/linux/fs.h:1991 [inline]
 new_sync_write fs/read_write.c:483 [inline]
 __vfs_write+0x480/0x5d0 fs/read_write.c:496
 vfs_write+0x20e/0x4c0 fs/read_write.c:558
 ksys_write+0x140/0x240 fs/read_write.c:611
 __do_sys_write fs/read_write.c:623 [inline]
 __se_sys_write fs/read_write.c:620 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:620
 do_syscall_64+0xcf/0x170 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x455ca9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 b4 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb159b1a0d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000055bf40 RCX: 0000000000455ca9
RDX: 0000000000000010 RSI: 00000000200020c0 RDI: 0000000000000003
RBP: 00000000004a1662 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004a07fb
R13: 000000000000000b R14: 000000000055bf40 R15: 00007fff0c9967e8
Modules linked in:
CR2: ffffed105c03c3ff
---[ end trace d63f4b4675a04faf ]---
RIP: 0010:fuse_dev_do_write+0x1bd6/0x4600 fs/fuse/dev.c:1941
Code: c8 b8 ff 48 8b 1b 4c 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 d8 25 00 00 45 8b 36 41 ff ce 49 01 de 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 d9 25 00 00 41 c6 06 00 48 8b 44 24 58
RSP: 0018:ffff8881eb89f860 EFLAGS: 00010a07
RAX: 1ffff1105c03c3ff RBX: ffff8881e01e2000 RCX: ffff8881ecc98fc0
RDX: 0000000000000000 RSI: 00000000000007e0 RDI: 00000000000007e0
RBP: ffff8881eb89fb88 R08: dffffc0000000000 R09: fffff94000ed333f
R10: fffff94000ed333f R11: 1ffffd4000ed333e R12: 0000000000000010
R13: dffffc0000000000 R14: ffff8882e01e1fff R15: ffff8881f0fd1440
FS:  00007fb159b1a6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed105c03c3ff CR3: 00000001f42c5000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	c8 b8 ff 48          	enter  $0xffb8,$0x48
   4:	8b 1b                	mov    (%rbx),%ebx
   6:	4c 89 f0             	mov    %r14,%rax
   9:	48 c1 e8 03          	shr    $0x3,%rax
   d:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax
  12:	84 c0                	test   %al,%al
  14:	0f 85 d8 25 00 00    	jne    0x25f2
  1a:	45 8b 36             	mov    (%r14),%r14d
  1d:	41 ff ce             	dec    %r14d
  20:	49 01 de             	add    %rbx,%r14
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 d9 25 00 00    	jne    0x2610
  37:	41 c6 06 00          	movb   $0x0,(%r14)
  3b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax