syz.1.16: attempt to access beyond end of device
loop1: rw=2049, sector=30744, nr_sectors = 8 limit=0
lbmIODone: I/O error in JFS log
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 80000001203a6067 P4D 80000001203a6067 PUD 1237e0067 PMD 0 
Oops: Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 1 PID: 5657 Comm: syz.1.16 Not tainted 6.9.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:metapage_write_folio+0x31/0x6d0 fs/jfs/jfs_metapage.c:343
Code: 41 56 41 55 41 54 53 48 83 ec 30 48 89 74 24 08 49 89 fd 65 48 8b 04 25 28 00 00 00 48 89 44 24 28 e8 93 39 6c ff 49 8b 45 18 <4c> 8b 20 c7 44 24 14 00 00 00 00 4d 8b 7d 20 49 c1 e7 0c 41 0f b6
RSP: 0018:ffffc90002ceb838 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 017ff00000004139 RCX: ffff888124923880
RDX: 0000000000000000 RSI: ffffc90002ceb8a0 RDI: ffffea000471c4c0
RBP: 0000000000000081 R08: ffffffff81d04b39 R09: 0000000000000000
R10: ffffc90002ceb8a8 R11: 0000000000000000 R12: 0000000000008800
R13: ffffea000471c4c0 R14: 0000000000000000 R15: ffffea000471c4c0
FS:  00007f35202a46c0(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011c4fe000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 metapage_write_one+0x142/0x420 fs/jfs/jfs_metapage.c:708
 force_metapage+0xa8/0x2d0 fs/jfs/jfs_metapage.c:730
 txForce fs/jfs/jfs_txnmgr.c:2215 [inline]
 txCommit+0x1a08/0x1d00 fs/jfs/jfs_txnmgr.c:1315
 diNewIAG fs/jfs/jfs_imap.c:2589 [inline]
 diAllocExt fs/jfs/jfs_imap.c:1902 [inline]
 diAllocAG+0xb64/0xc10 fs/jfs/jfs_imap.c:1666
 diAlloc+0xa4/0xb70 fs/jfs/jfs_imap.c:1587
 ialloc+0x59/0x330 fs/jfs/jfs_inode.c:56
 jfs_mkdir+0xf7/0x500 fs/jfs/namei.c:225
 vfs_mkdir+0x172/0x260 fs/namei.c:4131
 do_mkdirat+0x12c/0x270 fs/namei.c:4154
 __do_sys_mkdirat fs/namei.c:4169 [inline]
 __se_sys_mkdirat fs/namei.c:4167 [inline]
 __x64_sys_mkdirat+0x2e/0x40 fs/namei.c:4167
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x8d/0x1a0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f351f57dff9
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:00007f35202a4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f351f736058 RCX: 00007f351f57dff9
RDX: 0000000000000135 RSI: 0000000020000140 RDI: ffffffffffffff9c
RBP: 00007f351f5f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f351f736058 R15: 00007ffe8f770598
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
RIP: 0010:metapage_write_folio+0x31/0x6d0 fs/jfs/jfs_metapage.c:343
Code: 41 56 41 55 41 54 53 48 83 ec 30 48 89 74 24 08 49 89 fd 65 48 8b 04 25 28 00 00 00 48 89 44 24 28 e8 93 39 6c ff 49 8b 45 18 <4c> 8b 20 c7 44 24 14 00 00 00 00 4d 8b 7d 20 49 c1 e7 0c 41 0f b6
RSP: 0018:ffffc90002ceb838 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 017ff00000004139 RCX: ffff888124923880
RDX: 0000000000000000 RSI: ffffc90002ceb8a0 RDI: ffffea000471c4c0
RBP: 0000000000000081 R08: ffffffff81d04b39 R09: 0000000000000000
R10: ffffc90002ceb8a8 R11: 0000000000000000 R12: 0000000000008800
R13: ffffea000471c4c0 R14: 0000000000000000 R15: ffffea000471c4c0
FS:  00007f35202a46c0(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011c4fe000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	41 56                	push   %r14
   2:	41 55                	push   %r13
   4:	41 54                	push   %r12
   6:	53                   	push   %rbx
   7:	48 83 ec 30          	sub    $0x30,%rsp
   b:	48 89 74 24 08       	mov    %rsi,0x8(%rsp)
  10:	49 89 fd             	mov    %rdi,%r13
  13:	65 48 8b 04 25 28 00 	mov    %gs:0x28,%rax
  1a:	00 00
  1c:	48 89 44 24 28       	mov    %rax,0x28(%rsp)
  21:	e8 93 39 6c ff       	call   0xff6c39b9
  26:	49 8b 45 18          	mov    0x18(%r13),%rax
* 2a:	4c 8b 20             	mov    (%rax),%r12 <-- trapping instruction
  2d:	c7 44 24 14 00 00 00 	movl   $0x0,0x14(%rsp)
  34:	00
  35:	4d 8b 7d 20          	mov    0x20(%r13),%r15
  39:	49 c1 e7 0c          	shl    $0xc,%r15
  3d:	41                   	rex.B
  3e:	0f                   	.byte 0xf
  3f:	b6                   	.byte 0xb6