Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
CPU: 1 UID: 0 PID: 110 Comm: jfsCommit Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:write_special_inodes fs/jfs/jfs_logmgr.c:207 [inline]
RIP: 0010:lmLogSync+0x111/0x9f0 fs/jfs/jfs_logmgr.c:935
Code: 27 68 fe 4d 8d 7e d8 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 7d 50 d2 fe 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 61 50 d2 fe 49 8b 3f e8 69 86 a2 fe
RSP: 0018:ffffc90002e77b80 EFLAGS: 00010216
RAX: 0000000000000006 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff88801e773c80 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002e77c88 R08: 0000000000000003 R09: ffffc90002e77be0
R10: dffffc0000000000 R11: fffff520005cef80 R12: ffff888056223000
R13: ffffc90002e77be0 R14: ffff888030264c38 R15: 0000000000000030
FS:  0000000000000000(0000) GS:ffff888125566000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000177030 CR3: 0000000057631000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 jfs_syncpt+0x7b/0x90 fs/jfs/jfs_logmgr.c:1041
 txEnd+0x2e5/0x530 fs/jfs/jfs_txnmgr.c:550
 txLazyCommit fs/jfs/jfs_txnmgr.c:2685 [inline]
 jfs_lazycommit+0x5b8/0xaa0 fs/jfs/jfs_txnmgr.c:2734
 kthread+0x388/0x470 kernel/kthread.c:467
 ret_from_fork+0x51e/0xb90 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:write_special_inodes fs/jfs/jfs_logmgr.c:207 [inline]
RIP: 0010:lmLogSync+0x111/0x9f0 fs/jfs/jfs_logmgr.c:935
Code: 27 68 fe 4d 8d 7e d8 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 7d 50 d2 fe 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 61 50 d2 fe 49 8b 3f e8 69 86 a2 fe
RSP: 0018:ffffc90002e77b80 EFLAGS: 00010216
RAX: 0000000000000006 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff88801e773c80 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002e77c88 R08: 0000000000000003 R09: ffffc90002e77be0
R10: dffffc0000000000 R11: fffff520005cef80 R12: ffff888056223000
R13: ffffc90002e77be0 R14: ffff888030264c38 R15: 0000000000000030
FS:  0000000000000000(0000) GS:ffff888125566000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1c495e82f8 CR3: 0000000079208000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	68 fe 4d 8d 7e       	push   $0x7e8d4dfe
   5:	d8 4c 89 f8          	fmuls  -0x8(%rcx,%rcx,4)
   9:	48 c1 e8 03          	shr    $0x3,%rax
   d:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1)
  11:	74 08                	je     0x1b
  13:	4c 89 ff             	mov    %r15,%rdi
  16:	e8 7d 50 d2 fe       	call   0xfed25098
  1b:	4d 8b 3f             	mov    (%r15),%r15
  1e:	49 83 c7 30          	add    $0x30,%r15
  22:	4c 89 f8             	mov    %r15,%rax
  25:	48 c1 e8 03          	shr    $0x3,%rax
* 29:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1) <-- trapping instruction
  2d:	74 08                	je     0x37
  2f:	4c 89 ff             	mov    %r15,%rdi
  32:	e8 61 50 d2 fe       	call   0xfed25098
  37:	49 8b 3f             	mov    (%r15),%rdi
  3a:	e8 69 86 a2 fe       	call   0xfea286a8