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: 3755 Comm: syz-executor.5 Not tainted 6.0.0-rc7-syzkaller-00081-gc3e0e1e23c70 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:write_special_inodes+0xa6/0x170 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 ab 00 00 00 4c 8b 6b 28 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 88 00 00 00 49 8b 7d 30 41 ff d4 48 8d bb b0 00
RSP: 0018:ffffc900038f7c48 EFLAGS: 00010206
RAX: 0000000000000006 RBX: ffff8880236c4c00 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81a29052 RDI: 0000000000000030
RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff81a39370
R13: 0000000000000000 R14: ffff88807e5bb000 R15: ffff888017884640
FS:  0000555556aba400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fae0b90b800 CR3: 0000000077bd2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lmLogSync+0x458/0x7b0 fs/jfs/jfs_logmgr.c:937
 jfs_syncpt+0x89/0xa0 fs/jfs/jfs_logmgr.c:1041
 jfs_sync_fs+0x80/0xa0 fs/jfs/super.c:685
 sync_filesystem.part.0+0x75/0x1d0 fs/sync.c:56
 sync_filesystem+0x8b/0xc0 fs/sync.c:43
 generic_shutdown_super+0x70/0x400 fs/super.c:474
 kill_block_super+0x97/0xf0 fs/super.c:1427
 deactivate_locked_super+0x94/0x160 fs/super.c:332
 deactivate_super+0xad/0xd0 fs/super.c:363
 cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1186
 task_work_run+0xdd/0x1a0 kernel/task_work.c:177
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
 exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd63d48ba17
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:00007fffcf9c4608 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd63d48ba17
RDX: 00007fffcf9c46db RSI: 000000000000000a RDI: 00007fffcf9c46d0
RBP: 00007fffcf9c46d0 R08: 00000000ffffffff R09: 00007fffcf9c44a0
R10: 0000555556abb8b3 R11: 0000000000000246 R12: 00007fd63d4e45f6
R13: 00007fffcf9c5790 R14: 0000555556abb810 R15: 00007fffcf9c57d0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:write_special_inodes+0xa6/0x170 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 ab 00 00 00 4c 8b 6b 28 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 88 00 00 00 49 8b 7d 30 41 ff d4 48 8d bb b0 00
RSP: 0018:ffffc900038f7c48 EFLAGS: 00010206
RAX: 0000000000000006 RBX: ffff8880236c4c00 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81a29052 RDI: 0000000000000030
RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff81a39370
R13: 0000000000000000 R14: ffff88807e5bb000 R15: ffff888017884640
FS:  0000555556aba400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005613ded63000 CR3: 0000000077bd2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
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 ab 00 00 00    	jne    0xc6
  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 88 00 00 00    	jne    0xbc
  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