Oops: general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067]
CPU: 2 UID: 0 PID: 6741 Comm: syz.0.238 Not tainted 6.12.0-syzkaller-01892-g8f7c8b88bda4 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:fuse_read_args_fill fs/fuse/file.c:631 [inline]
RIP: 0010:fuse_do_readpage+0x276/0x640 fs/fuse/file.c:880
Code: e8 2f ad 90 fe 8b 44 24 10 89 44 24 78 41 89 c4 e8 1f ad 90 fe 48 8d 7b 60 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 1d 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc90003c47820 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900074c2000
RDX: 000000000000000c RSI: ffffffff82fceec1 RDI: 0000000000000060
RBP: 0000000000000000 R08: 0000000000000007 R09: 7fffffffffffffff
R10: 0000000000000fff R11: ffffffff961ee0f0 R12: 0000000000001000
R13: ffff88804f3d8000 R14: ffff888024a9ff00 R15: ffffc90003c478b8
FS:  00007f2f5c7f66c0(0000) GS:ffff88806a800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2f5c7b4d58 CR3: 0000000023f02000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000000c88e0000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 fuse_read_folio+0xb0/0x100 fs/fuse/file.c:905
 filemap_read_folio+0xc6/0x2a0 mm/filemap.c:2367
 do_read_cache_folio+0x263/0x5c0 mm/filemap.c:3827
 read_mapping_folio include/linux/pagemap.h:1011 [inline]
 erofs_bread+0x34d/0x7e0 fs/erofs/data.c:41
 erofs_read_superblock fs/erofs/super.c:281 [inline]
 erofs_fc_fill_super+0x2b9/0x2500 fs/erofs/super.c:625
 vfs_get_super fs/super.c:1280 [inline]
 get_tree_nodev+0xda/0x190 fs/super.c:1299
 erofs_fc_get_tree+0x203/0x2e0 fs/erofs/super.c:725
 vfs_get_tree+0x8f/0x380 fs/super.c:1814
 do_new_mount fs/namespace.c:3507 [inline]
 path_mount+0x14e6/0x1f20 fs/namespace.c:3834
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount fs/namespace.c:4034 [inline]
 __x64_sys_mount+0x294/0x320 fs/namespace.c:4034
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2f5e97e819
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2f5c7f6038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2f5eb35fa0 RCX: 00007f2f5e97e819
RDX: 0000000020000980 RSI: 0000000020000240 RDI: 0000000020000080
RBP: 00007f2f5e9f175e R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000000c R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2f5eb35fa0 R15: 00007ffd2ab78d28
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:fuse_read_args_fill fs/fuse/file.c:631 [inline]
RIP: 0010:fuse_do_readpage+0x276/0x640 fs/fuse/file.c:880
Code: e8 2f ad 90 fe 8b 44 24 10 89 44 24 78 41 89 c4 e8 1f ad 90 fe 48 8d 7b 60 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 1d 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc90003c47820 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900074c2000
RDX: 000000000000000c RSI: ffffffff82fceec1 RDI: 0000000000000060
RBP: 0000000000000000 R08: 0000000000000007 R09: 7fffffffffffffff
R10: 0000000000000fff R11: ffffffff961ee0f0 R12: 0000000000001000
R13: ffff88804f3d8000 R14: ffff888024a9ff00 R15: ffffc90003c478b8
FS:  00007f2f5c7f66c0(0000) GS:ffff88806a800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2f5c7b4d58 CR3: 0000000023f02000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000000c88e0000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	e8 2f ad 90 fe       	call   0xfe90ad34
   5:	8b 44 24 10          	mov    0x10(%rsp),%eax
   9:	89 44 24 78          	mov    %eax,0x78(%rsp)
   d:	41 89 c4             	mov    %eax,%r12d
  10:	e8 1f ad 90 fe       	call   0xfe90ad34
  15:	48 8d 7b 60          	lea    0x60(%rbx),%rdi
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 1d 03 00 00    	jne    0x351
  34:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  3b:	fc ff df
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b