Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
CPU: 0 UID: 0 PID: 5837 Comm: syz-executor Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:write_special_inodes fs/jfs/jfs_logmgr.c:207 [inline]
RIP: 0010:jfs_flush_journal+0x94b/0xed0 fs/jfs/jfs_logmgr.c:1582
Code: a6 7f fe 4d 8d 75 d8 4c 89 f0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 43 1e e3 fe 4d 8b 36 49 83 c6 30 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 27 1e e3 fe 49 8b 3e e8 3f 61 b6 fe
RSP: 0018:ffffc9000428f980 EFLAGS: 00010216
RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff88802d56bc00
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000000
RBP: ffffc9000428fab0 R08: ffffffff8fa10bf7 R09: 1ffffffff1f4217e
R10: dffffc0000000000 R11: fffffbfff1f4217f R12: 0000000000000000
R13: ffff88803451de38 R14: 0000000000000030 R15: ffff888030e72228
FS:  0000000000000000(0000) GS:ffff888125c52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c36ec00 CR3: 000000005cb49000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 jfs_umount+0x178/0x3c0 fs/jfs/jfs_umount.c:58
 jfs_put_super+0x8c/0x190 fs/jfs/super.c:194
 generic_shutdown_super+0x135/0x2c0 fs/super.c:643
 kill_block_super+0x44/0x90 fs/super.c:1753
 deactivate_locked_super+0xbc/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1417
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6ad/0x22e0 kernel/exit.c:955
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1104
 __do_sys_exit_group kernel/exit.c:1115 [inline]
 __se_sys_exit_group kernel/exit.c:1113 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1113
 x64_sys_call+0x21ba/0x21c0 arch/x86/include/generated/asm/syscalls_64.h:232
 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: 0033:0x7f9172f8e929
Code: Unable to access opcode bytes at 0x7f9172f8e8ff.
RSP: 002b:00007ffee286d5d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f917301094a RCX: 00007f9172f8e929
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000002 R08: 00007ffee286b377 R09: 00007ffee286e890
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffee286e890
R13: 00007f9173010925 R14: 000000000004ebb3 R15: 00007ffee286f960
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:write_special_inodes fs/jfs/jfs_logmgr.c:207 [inline]
RIP: 0010:jfs_flush_journal+0x94b/0xed0 fs/jfs/jfs_logmgr.c:1582
Code: a6 7f fe 4d 8d 75 d8 4c 89 f0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 43 1e e3 fe 4d 8b 36 49 83 c6 30 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 27 1e e3 fe 49 8b 3e e8 3f 61 b6 fe
RSP: 0018:ffffc9000428f980 EFLAGS: 00010216
RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff88802d56bc00
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000000
RBP: ffffc9000428fab0 R08: ffffffff8fa10bf7 R09: 1ffffffff1f4217e
R10: dffffc0000000000 R11: fffffbfff1f4217f R12: 0000000000000000
R13: ffff88803451de38 R14: 0000000000000030 R15: ffff888030e72228
FS:  0000000000000000(0000) GS:ffff888125d52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000002e000 CR3: 000000005109d000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
   0:	a6                   	cmpsb  %es:(%rdi),%ds:(%rsi)
   1:	7f fe                	jg     0x1
   3:	4d 8d 75 d8          	lea    -0x28(%r13),%r14
   7:	4c 89 f0             	mov    %r14,%rax
   a:	48 c1 e8 03          	shr    $0x3,%rax
   e:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1)
  12:	74 08                	je     0x1c
  14:	4c 89 f7             	mov    %r14,%rdi
  17:	e8 43 1e e3 fe       	call   0xfee31e5f
  1c:	4d 8b 36             	mov    (%r14),%r14
  1f:	49 83 c6 30          	add    $0x30,%r14
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 f7             	mov    %r14,%rdi
  33:	e8 27 1e e3 fe       	call   0xfee31e5f
  38:	49 8b 3e             	mov    (%r14),%rdi
  3b:	e8 3f 61 b6 fe       	call   0xfeb6617f