general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
CPU: 1 PID: 5892 Comm: syz-executor.3 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:write_special_inodes+0x9c/0x160 fs/jfs/jfs_logmgr.c:208
Code: 8b 7d 30 41 ff d4 48 8d 7b 28 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 a7 00 00 00 4c 8b 6b 28 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 84 00 00 00 49 8b 7d 30 41 ff d4 48 8d bb b0 00
RSP: 0018:ffffc900018bfcb8 EFLAGS: 00010216
RAX: 0000000000000006 RBX: ffff888036004800 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000030
RBP: dffffc0000000000 R08: 0000000000000000 R09: 7fffffffffffffff
R10: ffffed1004be6f08 R11: 0000000000000001 R12: ffffffff8186a370
R13: 0000000000000000 R14: ffff888025f37800 R15: dffffc0000000000
FS:  00005555566c7400(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f276fc9cdd8 CR3: 000000001b755000 CR4: 0000000000350ee0
Call Trace:
 lmLogSync+0x393/0x710 fs/jfs/jfs_logmgr.c:945
 jfs_syncpt+0x68/0x90 fs/jfs/jfs_logmgr.c:1049
 jfs_sync_fs+0x76/0x90 fs/jfs/super.c:691
 __sync_filesystem fs/sync.c:39 [inline]
 sync_filesystem fs/sync.c:67 [inline]
 sync_filesystem+0x15e/0x1f0 fs/sync.c:48
 generic_shutdown_super+0x64/0x320 fs/super.c:448
 kill_block_super+0x90/0xd0 fs/super.c:1393
 deactivate_locked_super+0x7b/0x130 fs/super.c:335
 cleanup_mnt+0x326/0x4c0 fs/namespace.c:1118
 task_work_run+0xc0/0x160 kernel/task_work.c:140
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
 exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fcb346dea17
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffccc196a98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fcb346dea17
RDX: 00007ffccc196b69 RSI: 000000000000000a RDI: 00007ffccc196b60
RBP: 00007ffccc196b60 R08: 00000000ffffffff R09: 00007ffccc196930
R10: 00005555566c88b3 R11: 0000000000000246 R12: 00007fcb347375f6
R13: 00007ffccc197c20 R14: 00005555566c8810 R15: 00007ffccc197c60
Modules linked in:
---[ end trace c7193abbc80e7faa ]---
RIP: 0010:write_special_inodes+0x9c/0x160 fs/jfs/jfs_logmgr.c:208
Code: 8b 7d 30 41 ff d4 48 8d 7b 28 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 a7 00 00 00 4c 8b 6b 28 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 84 00 00 00 49 8b 7d 30 41 ff d4 48 8d bb b0 00
RSP: 0018:ffffc900018bfcb8 EFLAGS: 00010216
RAX: 0000000000000006 RBX: ffff888036004800 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000030
RBP: dffffc0000000000 R08: 0000000000000000 R09: 7fffffffffffffff
R10: ffffed1004be6f08 R11: 0000000000000001 R12: ffffffff8186a370
R13: 0000000000000000 R14: ffff888025f37800 R15: dffffc0000000000
FS:  00005555566c7400(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0d85f309ee CR3: 000000001b755000 CR4: 0000000000350ee0
----------------
Code disassembly (best guess):
   0:	8b 7d 30             	mov    0x30(%rbp),%edi
   3:	41 ff d4             	callq  *%r12
   6:	48 8d 7b 28          	lea    0x28(%rbx),%rdi
   a:	48 89 f8             	mov    %rdi,%rax
   d:	48 c1 e8 03          	shr    $0x3,%rax
  11:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1)
  15:	0f 85 a7 00 00 00    	jne    0xc2
  1b:	4c 8b 6b 28          	mov    0x28(%rbx),%r13
  1f:	49 8d 7d 30          	lea    0x30(%r13),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1) <-- trapping instruction
  2e:	0f 85 84 00 00 00    	jne    0xb8
  34:	49 8b 7d 30          	mov    0x30(%r13),%rdi
  38:	41 ff d4             	callq  *%r12
  3b:	48                   	rex.W
  3c:	8d                   	.byte 0x8d
  3d:	bb                   	.byte 0xbb
  3e:	b0 00                	mov    $0x0,%al