Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 115 Comm: jfsCommit Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:metapage_write_folio+0x9d/0xe10 fs/jfs/jfs_metapage.c:429
Code: 48 8d 7b 18 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 0b 0c 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 18 48 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 df 0b 00 00 48 8b 6d 00 48 8d 45 28 48 89 c2 48
RSP: 0018:ffffc90002d4f928 EFLAGS: 00010256
RAX: dffffc0000000000 RBX: ffffea00026d8980 RCX: ffffffff83aac5c1
RDX: 0000000000000000 RSI: ffffffff83aab3d3 RDI: ffffea00026d8998
RBP: 0000000000000000 R08: 0000000000000001 R09: fffff940004db136
R10: ffffea00026d89b7 R11: 0000000000000001 R12: ffffea00026d89b4
R13: ffffc90002d4fa50 R14: 0000000000000081 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff888124435000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000004000 CR3: 000000005b5aa000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 metapage_write_one+0x300/0x4a0 fs/jfs/jfs_metapage.c:819
 release_metapage+0x6cd/0x990 fs/jfs/jfs_metapage.c:885
 put_metapage+0x1c5/0x250 fs/jfs/jfs_metapage.c:863
 txUnlock+0x46d/0xa40 fs/jfs/jfs_txnmgr.c:949
 txLazyCommit fs/jfs/jfs_txnmgr.c:2684 [inline]
 jfs_lazycommit+0x706/0xab0 fs/jfs/jfs_txnmgr.c:2735
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:metapage_write_folio+0x9d/0xe10 fs/jfs/jfs_metapage.c:429
Code: 48 8d 7b 18 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 0b 0c 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 18 48 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 df 0b 00 00 48 8b 6d 00 48 8d 45 28 48 89 c2 48
RSP: 0018:ffffc90002d4f928 EFLAGS: 00010256
RAX: dffffc0000000000 RBX: ffffea00026d8980 RCX: ffffffff83aac5c1
RDX: 0000000000000000 RSI: ffffffff83aab3d3 RDI: ffffea00026d8998
RBP: 0000000000000000 R08: 0000000000000001 R09: fffff940004db136
R10: ffffea00026d89b7 R11: 0000000000000001 R12: ffffea00026d89b4
R13: ffffc90002d4fa50 R14: 0000000000000081 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff888124335000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007febe49ea2f8 CR3: 0000000036efe000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	48 8d 7b 18          	lea    0x18(%rbx),%rdi
   4:	48 89 f8             	mov    %rdi,%rax
   7:	48 c1 e8 03          	shr    $0x3,%rax
   b:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1)
   f:	0f 85 0b 0c 00 00    	jne    0xc20
  15:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1c:	fc ff df
  1f:	48 8b 6b 18          	mov    0x18(%rbx),%rbp
  23:	48 89 ea             	mov    %rbp,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 df 0b 00 00    	jne    0xc13
  34:	48 8b 6d 00          	mov    0x0(%rbp),%rbp
  38:	48 8d 45 28          	lea    0x28(%rbp),%rax
  3c:	48 89 c2             	mov    %rax,%rdx
  3f:	48                   	rex.W