EXT4-fs (loop1): mounted filesystem 76b65be2-f6da-4727-8c75-0525a5b65a09 r/w without journal. Quota mode: none.
ext4 filesystem being mounted at /0/mnt supports timestamps until 2038-01-19 (0x7fffffff)
Oops: general protection fault, probably for non-canonical address 0xdffffc000000006f: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000378-0x000000000000037f]
CPU: 0 UID: 0 PID: 6013 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:ext4_inode_journal_mode+0x6d/0x480 fs/ext4/ext4_jbd2.c:12
Code: 00 4d 03 7d 00 4c 89 f8 48 c1 e8 03 80 3c 28 00 74 08 4c 89 ff e8 03 9e b6 ff 41 bc 78 03 00 00 4d 03 27 4c 89 e0 48 c1 e8 03 <80> 3c 28 00 74 08 4c 89 e7 e8 e5 9d b6 ff 49 83 3c 24 00 0f 84 01
RSP: 0018:ffffc90002d6f638 EFLAGS: 00010206
RAX: 000000000000006f RBX: ffff88811249ad48 RCX: ffff888021ed9cc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88811249ad48
RBP: dffffc0000000000 R08: ffff88811249ae2f R09: 1ffff110224935c5
R10: dffffc0000000000 R11: ffffed10224935c6 R12: 0000000000000378
R13: ffff88811249ad70 R14: 1ffff110224935ae R15: ffff88801bfa6640
FS:  00007fa922e456c0(0000) GS:ffff8880b8612000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000040 CR3: 000000010f5f6000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ext4_should_journal_data fs/ext4/ext4_jbd2.h:381 [inline]
 mext_check_validity fs/ext4/move_extent.c:426 [inline]
 ext4_move_extents+0x2bb/0x3630 fs/ext4/move_extent.c:579
 __ext4_ioctl fs/ext4/ioctl.c:1356 [inline]
 ext4_ioctl+0x26a7/0x33c0 fs/ext4/ioctl.c:1616
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa921f8ec29
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:00007fa922e45038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa9221d5fa0 RCX: 00007fa921f8ec29
RDX: 0000200000000040 RSI: 00000000c028660f RDI: 0000000000000004
RBP: 00007fa922011e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa9221d6038 R14: 00007fa9221d5fa0 R15: 00007ffcaaedca68
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_inode_journal_mode+0x6d/0x480 fs/ext4/ext4_jbd2.c:12
Code: 00 4d 03 7d 00 4c 89 f8 48 c1 e8 03 80 3c 28 00 74 08 4c 89 ff e8 03 9e b6 ff 41 bc 78 03 00 00 4d 03 27 4c 89 e0 48 c1 e8 03 <80> 3c 28 00 74 08 4c 89 e7 e8 e5 9d b6 ff 49 83 3c 24 00 0f 84 01
RSP: 0018:ffffc90002d6f638 EFLAGS: 00010206
RAX: 000000000000006f RBX: ffff88811249ad48 RCX: ffff888021ed9cc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88811249ad48
RBP: dffffc0000000000 R08: ffff88811249ae2f R09: 1ffff110224935c5
R10: dffffc0000000000 R11: ffffed10224935c6 R12: 0000000000000378
R13: ffff88811249ad70 R14: 1ffff110224935ae R15: ffff88801bfa6640
FS:  00007fa922e456c0(0000) GS:ffff8881a3c12000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000012c0 CR3: 000000010f5f6000 CR4: 00000000000006f0
----------------
Code disassembly (best guess):
   0:	00 4d 03             	add    %cl,0x3(%rbp)
   3:	7d 00                	jge    0x5
   5:	4c 89 f8             	mov    %r15,%rax
   8:	48 c1 e8 03          	shr    $0x3,%rax
   c:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1)
  10:	74 08                	je     0x1a
  12:	4c 89 ff             	mov    %r15,%rdi
  15:	e8 03 9e b6 ff       	call   0xffb69e1d
  1a:	41 bc 78 03 00 00    	mov    $0x378,%r12d
  20:	4d 03 27             	add    (%r15),%r12
  23:	4c 89 e0             	mov    %r12,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 e7             	mov    %r12,%rdi
  33:	e8 e5 9d b6 ff       	call   0xffb69e1d
  38:	49 83 3c 24 00       	cmpq   $0x0,(%r12)
  3d:	0f                   	.byte 0xf
  3e:	84 01                	test   %al,(%rcx)