attempt to access beyond end of device
loop6: rw=1, want=4680040, limit=32768
metapage_write_end_io: I/O error
general protection fault, probably for non-canonical address 0xdffffc0000000037: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000001b8-0x00000000000001bf]
CPU: 1 PID: 5833 Comm: syz.6.219 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:write_one_page+0x278/0x600 mm/page-writeback.c:2431
Code: 04 00 00 00 e8 79 ce 1c 00 f0 41 ff 06 48 8b 44 24 18 48 8d 98 b8 01 00 00 48 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df <42> 80 3c 28 00 74 08 48 89 df e8 a9 cc 1c 00 48 8b 1b 48 89 d8 48
RSP: 0018:ffffc9000300f5c0 EFLAGS: 00010202
RAX: 0000000000000037 RBX: 00000000000001b8 RCX: ffffffff819f67d7
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffea00018e08b4
RBP: ffffc9000300f6c8 R08: dffffc0000000000 R09: fffff9400031c117
R10: fffff9400031c117 R11: 1ffffd400031c116 R12: ffffea00018e0888
R13: dffffc0000000000 R14: ffffea00018e08b4 R15: 1ffffd400031c111
FS:  00007f8b479b36c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe2e6f47000 CR3: 0000000050d7a000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 force_metapage+0x20e/0x520 fs/jfs/jfs_metapage.c:704
 txForce fs/jfs/jfs_txnmgr.c:2250 [inline]
 txCommit+0x49d6/0x51c0 fs/jfs/jfs_txnmgr.c:1316
 diNewIAG fs/jfs/jfs_imap.c:2592 [inline]
 diAllocExt fs/jfs/jfs_imap.c:1905 [inline]
 diAllocAG+0x167a/0x1c20 fs/jfs/jfs_imap.c:1669
 diAlloc+0x1c9/0x1910 fs/jfs/jfs_imap.c:1590
 ialloc+0x89/0x940 fs/jfs/jfs_inode.c:56
 jfs_mkdir+0x190/0xa70 fs/jfs/namei.c:225
 vfs_mkdir+0x387/0x570 fs/namei.c:4073
 do_mkdirat+0x1d7/0x5a0 fs/namei.c:4098
 __do_sys_mkdir fs/namei.c:4118 [inline]
 __se_sys_mkdir fs/namei.c:4116 [inline]
 __x64_sys_mkdir+0x6a/0x80 fs/namei.c:4116
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f8b4976d749
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:00007f8b479b3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f8b499c4090 RCX: 00007f8b4976d749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000040
RBP: 00007f8b497f1f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8b499c4128 R14: 00007f8b499c4090 R15: 00007ffda6c2ddc8
 </TASK>
Modules linked in:
---[ end trace 447f6ddb820719c3 ]---
RIP: 0010:write_one_page+0x278/0x600 mm/page-writeback.c:2431
Code: 04 00 00 00 e8 79 ce 1c 00 f0 41 ff 06 48 8b 44 24 18 48 8d 98 b8 01 00 00 48 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df <42> 80 3c 28 00 74 08 48 89 df e8 a9 cc 1c 00 48 8b 1b 48 89 d8 48
RSP: 0018:ffffc9000300f5c0 EFLAGS: 00010202
RAX: 0000000000000037 RBX: 00000000000001b8 RCX: ffffffff819f67d7
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffea00018e08b4
RBP: ffffc9000300f6c8 R08: dffffc0000000000 R09: fffff9400031c117
R10: fffff9400031c117 R11: 1ffffd400031c116 R12: ffffea00018e0888
R13: dffffc0000000000 R14: ffffea00018e08b4 R15: 1ffffd400031c111
FS:  00007f8b479b36c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe2e6f47000 CR3: 0000000050d7a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	04 00                	add    $0x0,%al
   2:	00 00                	add    %al,(%rax)
   4:	e8 79 ce 1c 00       	call   0x1cce82
   9:	f0 41 ff 06          	lock incl (%r14)
   d:	48 8b 44 24 18       	mov    0x18(%rsp),%rax
  12:	48 8d 98 b8 01 00 00 	lea    0x1b8(%rax),%rbx
  19:	48 89 d8             	mov    %rbx,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
  27:	fc ff df
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 a9 cc 1c 00       	call   0x1ccce2
  39:	48 8b 1b             	mov    (%rbx),%rbx
  3c:	48 89 d8             	mov    %rbx,%rax
  3f:	48                   	rex.W