loop3: detected capacity change from 0 to 8
general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 2 PID: 9377 Comm: syz-executor.3 Not tainted 6.2.0-rc4-syzkaller-00067-g7287904c8771 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:cache_first_page+0x60/0x90 fs/squashfs/page_actor.c:27
Code: 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 30 48 b8 00 00 00 00 00 fc ff df 48 8b 1b 48 89 da 48 c1 ea 03 <80> 3c 02 00 75 0c 48 8b 03 5b c3 e8 40 44 92 ff eb bc 48 89 df e8
RSP: 0018:ffffc9002946faa0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000010 RCX: ffffc90007cd4000
RDX: 0000000000000002 RSI: ffffffff823d22dd RDI: ffff888025d1dec0
RBP: ffff88801473c000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 00000000000001f8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7f17b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f737c0c4 CR3: 000000007325a000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 squashfs_first_page fs/squashfs/page_actor.h:43 [inline]
 copy_bio_to_actor fs/squashfs/block.c:44 [inline]
 squashfs_read_data+0x7de/0xf50 fs/squashfs/block.c:221
 squashfs_read_table+0x15c/0x1f0 fs/squashfs/cache.c:432
 squashfs_read_xattr_id_table+0x20c/0x440 fs/squashfs/xattr_id.c:95
 squashfs_fill_super+0xf08/0x2700 fs/squashfs/super.c:348
 get_tree_bdev+0x444/0x760 fs/super.c:1282
 vfs_get_tree+0x8d/0x2f0 fs/super.c:1489
 do_new_mount fs/namespace.c:3145 [inline]
 path_mount+0x132a/0x1e20 fs/namespace.c:3475
 do_mount fs/namespace.c:3488 [inline]
 __do_sys_mount fs/namespace.c:3697 [inline]
 __se_sys_mount fs/namespace.c:3674 [inline]
 __ia32_sys_mount+0x282/0x300 fs/namespace.c:3674
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 entry_SYSENTER_compat_after_hwframe+0x70/0x82
RIP: 0023:0xf7f1c549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f7f17410 EFLAGS: 00000296 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 00000000f7f17480 RCX: 0000000020000240
RDX: 0000000020000200 RSI: 0000000000000000 RDI: 00000000f7f174c0
RBP: 00000000f7f174c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:cache_first_page+0x60/0x90 fs/squashfs/page_actor.c:27
Code: 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 30 48 b8 00 00 00 00 00 fc ff df 48 8b 1b 48 89 da 48 c1 ea 03 <80> 3c 02 00 75 0c 48 8b 03 5b c3 e8 40 44 92 ff eb bc 48 89 df e8
RSP: 0018:ffffc9002946faa0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000010 RCX: ffffc90007cd4000
RDX: 0000000000000002 RSI: ffffffff823d22dd RDI: ffff888025d1dec0
RBP: ffff88801473c000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 00000000000001f8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7f17b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000ffee4fc8 CR3: 000000007325a000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   9:	fc ff df
   c:	48 c1 ea 03          	shr    $0x3,%rdx
  10:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
  14:	75 30                	jne    0x46
  16:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1d:	fc ff df
  20:	48 8b 1b             	mov    (%rbx),%rbx
  23:	48 89 da             	mov    %rbx,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	75 0c                	jne    0x3c
  30:	48 8b 03             	mov    (%rbx),%rax
  33:	5b                   	pop    %rbx
  34:	c3                   	retq
  35:	e8 40 44 92 ff       	callq  0xff92447a
  3a:	eb bc                	jmp    0xfffffff8
  3c:	48 89 df             	mov    %rbx,%rdi
  3f:	e8                   	.byte 0xe8