EXT4-fs (loop0): Test dummy encryption mode enabled
EXT4-fs (loop0): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock
EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (394!=20869)
EXT4-fs error (device loop0): ext4_get_journal_inode:5740: comm syz-executor.0: inode #33: comm syz-executor.0: iget: illegal inode #
EXT4-fs (loop0): no journal found
BUG: unable to handle page fault for address: ffffffffffffffdb
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 2eaf067 P4D 2eaf067 PUD 2eb1067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 2551 Comm: syz-executor.0 Not tainted 6.5.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:ext4_calculate_overhead+0x447/0x490 fs/ext4/super.c:4204
Code: 40 5c 04 0f 84 e2 fe ff ff 45 85 e4 0f 84 d9 fe ff ff 4c 89 f7 44 89 e6 e8 c6 ca ff ff 48 85 c0 48 89 c7 74 33 41 0f b6 4e 14 <48> 8b 40 50 41 8b 55 50 48 d3 f8 41 8b 4d 54 8d 44 02 ff d3 e8 48
RSP: 0018:ffffc900021abce8 EFLAGS: 00010286
RAX: ffffffffffffff8b RBX: 0000000000000001 RCX: 000000000000000a
RDX: 0000000000000000 RSI: ffffffff82ae8522 RDI: ffffffffffffff8b
RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffff82efaf20
R10: ffffc900021abb00 R11: ffffffff82fdaf68 R12: 0000000000000021
R13: ffff88810eebb000 R14: ffff88810eeba000 R15: ffff88810bef1000
FS:  00007f74287d36c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffdb CR3: 000000010fa87000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __ext4_fill_super fs/ext4/super.c:5413 [inline]
 ext4_fill_super+0x2079/0x3090 fs/ext4/super.c:5664
 get_tree_bdev+0x172/0x280 fs/super.c:1318
 vfs_get_tree+0x1c/0x90 fs/super.c:1519
 do_new_mount fs/namespace.c:3335 [inline]
 path_mount+0x48a/0xb80 fs/namespace.c:3662
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount fs/namespace.c:3861 [inline]
 __x64_sys_mount+0x111/0x150 fs/namespace.c:3861
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7427a7e1ea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f74287d2ee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f74287d2f80 RCX: 00007f7427a7e1ea
RDX: 00000000200000c0 RSI: 0000000020000040 RDI: 00007f74287d2f40
RBP: 00000000200000c0 R08: 00007f74287d2f80 R09: 0000000001000403
R10: 0000000001000403 R11: 0000000000000246 R12: 0000000020000040
R13: 00007f74287d2f40 R14: 00000000000005c4 R15: 0000000020000180
 </TASK>
Modules linked in:
CR2: ffffffffffffffdb
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_calculate_overhead+0x447/0x490 fs/ext4/super.c:4204
Code: 40 5c 04 0f 84 e2 fe ff ff 45 85 e4 0f 84 d9 fe ff ff 4c 89 f7 44 89 e6 e8 c6 ca ff ff 48 85 c0 48 89 c7 74 33 41 0f b6 4e 14 <48> 8b 40 50 41 8b 55 50 48 d3 f8 41 8b 4d 54 8d 44 02 ff d3 e8 48
RSP: 0018:ffffc900021abce8 EFLAGS: 00010286
RAX: ffffffffffffff8b RBX: 0000000000000001 RCX: 000000000000000a
RDX: 0000000000000000 RSI: ffffffff82ae8522 RDI: ffffffffffffff8b
RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffff82efaf20
R10: ffffc900021abb00 R11: ffffffff82fdaf68 R12: 0000000000000021
R13: ffff88810eebb000 R14: ffff88810eeba000 R15: ffff88810bef1000
FS:  00007f74287d36c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffdb CR3: 000000010fa87000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 3 bytes skipped:
   0:	0f 84 e2 fe ff ff    	je     0xfffffee8
   6:	45 85 e4             	test   %r12d,%r12d
   9:	0f 84 d9 fe ff ff    	je     0xfffffee8
   f:	4c 89 f7             	mov    %r14,%rdi
  12:	44 89 e6             	mov    %r12d,%esi
  15:	e8 c6 ca ff ff       	call   0xffffcae0
  1a:	48 85 c0             	test   %rax,%rax
  1d:	48 89 c7             	mov    %rax,%rdi
  20:	74 33                	je     0x55
  22:	41 0f b6 4e 14       	movzbl 0x14(%r14),%ecx
* 27:	48 8b 40 50          	mov    0x50(%rax),%rax <-- trapping instruction
  2b:	41 8b 55 50          	mov    0x50(%r13),%edx
  2f:	48 d3 f8             	sar    %cl,%rax
  32:	41 8b 4d 54          	mov    0x54(%r13),%ecx
  36:	8d 44 02 ff          	lea    -0x1(%rdx,%rax,1),%eax
  3a:	d3 e8                	shr    %cl,%eax
  3c:	48                   	rex.W